Pub Date : 2024-04-10DOI: 10.1177/15280837241247341
Abdulrahman Alghamdi
The thermal conductivities of woven composites are strongly affected by the anisotropic properties of the reinforcing fibers, and thus by the fabric structure. In this study, the thermal conductivity of 2D woven composites was investigated by optimizing the fabric structures to enhance the through-thickness and in-plane thermal conductivities. Multiscale finite element models were developed to simulate the thermal behavior of various 2D fabric structures and evaluate their thermal performance under varying conditions, focusing on the effects of fiber tow undulation, dry-zone porosity, and matrix-rich zones. Fabric architectures were selected based on common 2D weavings of composites. The results showed that the tow undulation substantially enhanced the through-thickness conductivity and mitigated the impact of porosity. In addition, a higher tow anisotropy increased the effect of undulation. Moreover, the plain-weave fabric structures exhibited the highest through-thickness and in-plane thermal conductivities among the evaluated 2D woven fabrics in porous composites. Finally, the matrix-rich zones showed a stronger effect on the through-thickness than on the in-plane thermal conductivity of the 2D woven composites.
{"title":"Simulation-based evaluation of effects of fabric structure on thermal conductivity of various 2D woven composites","authors":"Abdulrahman Alghamdi","doi":"10.1177/15280837241247341","DOIUrl":"https://doi.org/10.1177/15280837241247341","url":null,"abstract":"The thermal conductivities of woven composites are strongly affected by the anisotropic properties of the reinforcing fibers, and thus by the fabric structure. In this study, the thermal conductivity of 2D woven composites was investigated by optimizing the fabric structures to enhance the through-thickness and in-plane thermal conductivities. Multiscale finite element models were developed to simulate the thermal behavior of various 2D fabric structures and evaluate their thermal performance under varying conditions, focusing on the effects of fiber tow undulation, dry-zone porosity, and matrix-rich zones. Fabric architectures were selected based on common 2D weavings of composites. The results showed that the tow undulation substantially enhanced the through-thickness conductivity and mitigated the impact of porosity. In addition, a higher tow anisotropy increased the effect of undulation. Moreover, the plain-weave fabric structures exhibited the highest through-thickness and in-plane thermal conductivities among the evaluated 2D woven fabrics in porous composites. Finally, the matrix-rich zones showed a stronger effect on the through-thickness than on the in-plane thermal conductivity of the 2D woven composites.","PeriodicalId":16097,"journal":{"name":"Journal of Industrial Textiles","volume":"26 1","pages":""},"PeriodicalIF":3.2,"publicationDate":"2024-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140586021","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-04-10DOI: 10.1177/15280837241235395
Yushan Li, Shiping Yin, Linli Feng
A sandwich insulation wall panel is a novel composite wall that integrates load bearing, thermal insulation and decoration. Most of the wall materials of sandwich insulation wall panels are made of ordinary concrete or lightweight concrete, which causes the wall panels to be too thick and heavy, and there are problems associated with poor durability and high energy consumption. Textile-reinforced engineered cementitious composite (TRE) materials have excellent mechanical properties, toughness and durability. Therefore, a type of sandwich insulation wall panel (SIWP) was constructed using textile-reinforced engineered cementitious composites (TRE) as the inner and outer wythes. Its good crack control ability and tensile performance can compensate for the brittle cracking and shedding of ordinary concrete sandwich insulation wall panels. Through a four-point bending test, the bending performance of the TRE sandwich insulation wall panel (TRE-SIWP) was analyzed from three aspects: failure mode, load-midspan deflection curve and ductility. The research variables included the number of hot rain cycles, the thickness of the TRE wythes, the hot rain environment, the thermal insulation layer type and thickness, and the number of heating-freezing cycles. The results show the that hot-rain cycles had the least effect on the specimen with a rock wool board, and they caused more damage to the TRE wythes than they did to the insulation board. Increasing the thickness of the insulation layer and TRE width could improve the flexural bearing capacity and stiffness of the TRE-SIWPs.
夹芯保温墙板是一种集承重、保温、装饰于一体的新型复合墙体。夹芯保温墙板的墙体材料大多由普通混凝土或轻质混凝土制成，导致墙板过厚、过重，存在耐久性差、能耗高等问题。纺织品增强工程水泥基复合材料（TRE）具有优异的机械性能、韧性和耐久性。因此，一种夹心保温墙板（SIWP）的内外壁采用了纺织品增强水泥基复合材料（TRE）。其良好的裂缝控制能力和抗拉性能可以弥补普通混凝土夹心保温墙板的脆性开裂和脱落问题。通过四点弯曲试验，从破坏模式、荷载-中跨挠度曲线和延性三个方面分析了 TRE 夹层保温墙板（TRE-SIWP）的弯曲性能。研究变量包括热雨循环次数、TRE 墙体厚度、热雨环境、保温层类型和厚度以及加热-冷冻循环次数。结果表明，热雨循环对岩棉板试样的影响最小，对 TRE 墙体造成的损坏比对保温板造成的损坏更大。增加保温层厚度和 TRE 宽度可提高 TRE-SIWP 的抗弯承载能力和刚度。
{"title":"Test and analysis of the flexural performance of sandwich insulation wall panels with textile-reinforced engineered cementitious composites in wythes after hot rain cycles","authors":"Yushan Li, Shiping Yin, Linli Feng","doi":"10.1177/15280837241235395","DOIUrl":"https://doi.org/10.1177/15280837241235395","url":null,"abstract":"A sandwich insulation wall panel is a novel composite wall that integrates load bearing, thermal insulation and decoration. Most of the wall materials of sandwich insulation wall panels are made of ordinary concrete or lightweight concrete, which causes the wall panels to be too thick and heavy, and there are problems associated with poor durability and high energy consumption. Textile-reinforced engineered cementitious composite (TRE) materials have excellent mechanical properties, toughness and durability. Therefore, a type of sandwich insulation wall panel (SIWP) was constructed using textile-reinforced engineered cementitious composites (TRE) as the inner and outer wythes. Its good crack control ability and tensile performance can compensate for the brittle cracking and shedding of ordinary concrete sandwich insulation wall panels. Through a four-point bending test, the bending performance of the TRE sandwich insulation wall panel (TRE-SIWP) was analyzed from three aspects: failure mode, load-midspan deflection curve and ductility. The research variables included the number of hot rain cycles, the thickness of the TRE wythes, the hot rain environment, the thermal insulation layer type and thickness, and the number of heating-freezing cycles. The results show the that hot-rain cycles had the least effect on the specimen with a rock wool board, and they caused more damage to the TRE wythes than they did to the insulation board. Increasing the thickness of the insulation layer and TRE width could improve the flexural bearing capacity and stiffness of the TRE-SIWPs.","PeriodicalId":16097,"journal":{"name":"Journal of Industrial Textiles","volume":"77 1","pages":""},"PeriodicalIF":3.2,"publicationDate":"2024-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140586020","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-04-05DOI: 10.1177/15280837241246110
Mohammad Sadegh Abbassi Shanbehbazari, Mohammadreza Alihoseini, Mohammadreza Khani, Farzaneh Ostovarpour, Seyed Iman Hosseini, Mojtaba Jalili, Babak Shokri
Due to its low hydrophilicity, direct sublimation inkjet printing on woven polyester fabric surfaces is challenging. This research experimentally studies the efficacy of dielectric barrier discharge (DBD) roll-to-roll plasma treatment with or without water vapor post-exposure as a novel method to modify polyethylene terephthalate (PET) surfaces to enhance hydrophilicity, color performance, and printing quality. The Response Surface Methodology (RSM) was used to design experiments, and the optimum conditions were analyzed through statistical calculations. Their results were examined using Optical Emission Spectroscopy (OES), Atomic Force Microscopy (AFM), field emission scanning electron microscopy (FESEM), Energy Dispersive X-ray (EDX), X-ray Photoelectron Spectroscopy (XPS), and Attenuated Total Reflectance Fourier Transform Infra-Red spectroscopy (ATR-FTIR) tests. Qualitative and quantitative tests for color performance and wicking test used for hydrophilicity assessment confirms the effectiveness of this Green inline pretreatment for industries to enhance direct sublimation inkjet printing quality on PET by a decrease in absorption time from 12051 to 202 s and an increase in the color depth to 12.49%, 25.89 and 18.07% for Cyan, Magenta and Key (black) respectively. One of the stable optimum conditions in which three printed colors: Cyan, Magenta, and Black (Key), show high-quality color performance is at 15 processing rounds, 2 m/min velocity in the absence or presence of water vapor post-exposure. Water vapor post-exposure exhibits a beneficial, economic effect along with plasma treatment. The results show that the chemical modification aspect of this treatment plays a more significant role in printing quality enhancement than its morphological modification.
由于聚酯织物亲水性低，在其表面进行直接升华喷墨打印具有挑战性。本研究通过实验研究了介质阻挡放电（DBD）辊对辊等离子处理的功效，并将水蒸气后暴露或不水蒸气后暴露作为改性聚对苯二甲酸乙二醇酯（PET）表面的一种新方法，以提高亲水性、色彩表现和印刷质量。实验设计采用了响应面方法（RSM），并通过统计计算分析了最佳条件。实验结果通过光学发射光谱（OES）、原子力显微镜（AFM）、场发射扫描电子显微镜（FESEM）、能量色散 X 射线（EDX）、X 射线光电子能谱（XPS）和衰减全反射傅立叶变换红外光谱（ATR-FTIR）测试进行检验。对颜色性能的定性和定量测试以及用于亲水性评估的吸水测试证实了这种绿色联机预处理技术在提高 PET 直接升华喷墨印刷质量方面的有效性，吸收时间从 12051 秒减少到 202 秒，青色、品红色和关键色（黑色）的色深分别增加到 12.49%、25.89% 和 18.07%。其中一个稳定的最佳条件是三种印刷颜色：在没有或有水蒸气后曝光的情况下，青色、品红色和黑色（关键色）在 15 个加工轮次、2 米/分钟的速度下都能表现出高质量的色彩性能。水蒸气后曝光与等离子处理一起显示出有益的经济效果。结果表明，在提高印刷质量方面，这种处理方法的化学改性作用比形态改性作用更为重要。
{"title":"Enhancement of hydrophilicity and color strength in plasma treated PET with water vapor post-exposure using a new in-line pilot scale DBD plasma","authors":"Mohammad Sadegh Abbassi Shanbehbazari, Mohammadreza Alihoseini, Mohammadreza Khani, Farzaneh Ostovarpour, Seyed Iman Hosseini, Mojtaba Jalili, Babak Shokri","doi":"10.1177/15280837241246110","DOIUrl":"https://doi.org/10.1177/15280837241246110","url":null,"abstract":"Due to its low hydrophilicity, direct sublimation inkjet printing on woven polyester fabric surfaces is challenging. This research experimentally studies the efficacy of dielectric barrier discharge (DBD) roll-to-roll plasma treatment with or without water vapor post-exposure as a novel method to modify polyethylene terephthalate (PET) surfaces to enhance hydrophilicity, color performance, and printing quality. The Response Surface Methodology (RSM) was used to design experiments, and the optimum conditions were analyzed through statistical calculations. Their results were examined using Optical Emission Spectroscopy (OES), Atomic Force Microscopy (AFM), field emission scanning electron microscopy (FESEM), Energy Dispersive X-ray (EDX), X-ray Photoelectron Spectroscopy (XPS), and Attenuated Total Reflectance Fourier Transform Infra-Red spectroscopy (ATR-FTIR) tests. Qualitative and quantitative tests for color performance and wicking test used for hydrophilicity assessment confirms the effectiveness of this Green inline pretreatment for industries to enhance direct sublimation inkjet printing quality on PET by a decrease in absorption time from 12051 to 202 s and an increase in the color depth to 12.49%, 25.89 and 18.07% for Cyan, Magenta and Key (black) respectively. One of the stable optimum conditions in which three printed colors: Cyan, Magenta, and Black (Key), show high-quality color performance is at 15 processing rounds, 2 m/min velocity in the absence or presence of water vapor post-exposure. Water vapor post-exposure exhibits a beneficial, economic effect along with plasma treatment. The results show that the chemical modification aspect of this treatment plays a more significant role in printing quality enhancement than its morphological modification.","PeriodicalId":16097,"journal":{"name":"Journal of Industrial Textiles","volume":"32 1","pages":""},"PeriodicalIF":3.2,"publicationDate":"2024-04-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140602875","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-04-04DOI: 10.1177/15280837241245903
Magdi El Messiry, Eman Eltahan
Traditional silk, known for its strength, flexibility, and comfort, shows promise as a lightweight, comfortable material for stab-resistant armor. This study explores enhancing silk’s knife-stabbing resistance for soft body armor through surface treatments. This study aims to augment the knife-stabbing resistance of silk fabric for soft body armor. Designed a falling tower setup to investigate fabric responses under impact. Exploring the addition of layers with coatings like silicon dioxide deposition, rice ash deposition, and aluminum oxide particles, the investigation revealed significant enhancements. A solitary silk layer exclusively coated with resin exhibited improvements of approximately 37.07%, 29.21%, and 13.47% in stab resistance for rice ash, aluminum oxide, and silicon oxide particles, respectively. The specific knife penetration depth indicated that the coating is more effective in diminishing penetration depth. The research identified that 7 layers of pure silk and 3 layers coated with rice ash satisfy National Institute of Justice Standard–0115.00, S1 as 26 layers of silk fabric, demonstrating a reduction without compromising protective efficacy.
{"title":"Enhancement of silk fabric knife-stabbing resistance for soft body armor","authors":"Magdi El Messiry, Eman Eltahan","doi":"10.1177/15280837241245903","DOIUrl":"https://doi.org/10.1177/15280837241245903","url":null,"abstract":"Traditional silk, known for its strength, flexibility, and comfort, shows promise as a lightweight, comfortable material for stab-resistant armor. This study explores enhancing silk’s knife-stabbing resistance for soft body armor through surface treatments. This study aims to augment the knife-stabbing resistance of silk fabric for soft body armor. Designed a falling tower setup to investigate fabric responses under impact. Exploring the addition of layers with coatings like silicon dioxide deposition, rice ash deposition, and aluminum oxide particles, the investigation revealed significant enhancements. A solitary silk layer exclusively coated with resin exhibited improvements of approximately 37.07%, 29.21%, and 13.47% in stab resistance for rice ash, aluminum oxide, and silicon oxide particles, respectively. The specific knife penetration depth indicated that the coating is more effective in diminishing penetration depth. The research identified that 7 layers of pure silk and 3 layers coated with rice ash satisfy National Institute of Justice Standard–0115.00, S1 as 26 layers of silk fabric, demonstrating a reduction without compromising protective efficacy.","PeriodicalId":16097,"journal":{"name":"Journal of Industrial Textiles","volume":"170 1","pages":""},"PeriodicalIF":3.2,"publicationDate":"2024-04-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140602079","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-03-28DOI: 10.1177/15280837241240151
Yong Hui Yang, Bin Yang, Yue Yang Yu
This study investigates the performance degradation and prediction of polyvinylidene fluoride (PVDF) membrane materials under natural aging conditions (2 MPa prestress) and artificially accelerated aging conditions. Initially, the tensile strength, elongation at break, elastic modulus, tear strength, and apparent properties (transmittance, reflectivity, and conjugated double bond absorption area) of the membrane material were measured through uniaxial tensile testing, trapezoidal tear testing, and ultraviolet (UV) testing. These measurement results were then compared and analyzed in relation to tear strength and apparent properties under artificially accelerated aging conditions. The results indicate that UV irradiation and 2 MPa prestress play a crucial role in the degradation of PVDF membrane material properties. Finally, an enhanced Arrhenius equation, accounting for the triple effects of irradiation, oxygen pressure, and temperature, and Schwarzschild’s law, were employed to establish a correlation between natural (2 MPa prestress) and artificially accelerated aging performance of PVDF. The results demonstrate that the enhanced Arrhenius equation provides a more accurate prediction compared to Schwarzschild’s law.
{"title":"Performance prediction of polyvinylidene fluoride membrane materials after natural and artificially accelerated aging","authors":"Yong Hui Yang, Bin Yang, Yue Yang Yu","doi":"10.1177/15280837241240151","DOIUrl":"https://doi.org/10.1177/15280837241240151","url":null,"abstract":"This study investigates the performance degradation and prediction of polyvinylidene fluoride (PVDF) membrane materials under natural aging conditions (2 MPa prestress) and artificially accelerated aging conditions. Initially, the tensile strength, elongation at break, elastic modulus, tear strength, and apparent properties (transmittance, reflectivity, and conjugated double bond absorption area) of the membrane material were measured through uniaxial tensile testing, trapezoidal tear testing, and ultraviolet (UV) testing. These measurement results were then compared and analyzed in relation to tear strength and apparent properties under artificially accelerated aging conditions. The results indicate that UV irradiation and 2 MPa prestress play a crucial role in the degradation of PVDF membrane material properties. Finally, an enhanced Arrhenius equation, accounting for the triple effects of irradiation, oxygen pressure, and temperature, and Schwarzschild’s law, were employed to establish a correlation between natural (2 MPa prestress) and artificially accelerated aging performance of PVDF. The results demonstrate that the enhanced Arrhenius equation provides a more accurate prediction compared to Schwarzschild’s law.","PeriodicalId":16097,"journal":{"name":"Journal of Industrial Textiles","volume":"21 1","pages":""},"PeriodicalIF":3.2,"publicationDate":"2024-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140323931","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-03-28DOI: 10.1177/15280837241245121
Jozef Tkac, Jiri Hajnys, Ondrej Mizera, Vieroslav Molnar, Gabriel Fedorko, Lenka Cepova
The production technology of one of the essential structural parts of rubber-textile conveyor belts, the textile carcass, has not changed much since the start of their use. Specific changes occurred only in the material used when various synthetic fibres gradually replaced cotton. However, with the development of additive technologies, the possibility of changing the production technology is coming to the fore, when industrial textiles produced by classic weaving will not be used to make the carcass but a structure built by 3D printing. Confirmation of this change would represent a revolutionary breakthrough in the technology for rubber-textile conveyor belt production. Based on these facts, the possibility of using continuous 3D printing technology was verified to print a structure that would replace the technical fabric used in the conveyor belt carcass. As part of the research, the Selective Laser Sintering (SLS), Fused Deposition Modeling (FDM), and Stereolithography (SLA) technologies were verified. Experimental specimens with the dimensions of 145 x 145 x 185 mm were produced in three different positions: at an angle (45°), horizontally, and vertically. The specimens were made of three types of filament: SLA (Elastic 50A), SLS (TPU 1301), and FDM (Flexfill 92A); for each of the three positions of the specimen, filament consumption and printing time were determined due to the use of support material. Created specimens were then assessed regarding their production possibility and achievement of the desired structure.
橡胶织物输送带的重要结构部件之一--织物胎体的生产技术自开始使用以来一直没有太大变化。只有当各种合成纤维逐渐取代棉花时，所用材料才会发生具体变化。然而，随着添加剂技术的发展，改变生产技术的可能性正逐渐凸显，届时，传统编织法生产的工业纺织品将不再用于制造胎体，而是通过 3D 打印技术制造结构。这一变化的确认将代表着橡胶织物传送带生产技术的革命性突破。基于这些事实，我们验证了使用连续三维打印技术打印结构的可能性，这种结构将取代输送带胎体中使用的技术织物。作为研究的一部分，对选择性激光烧结（SLS）、熔融沉积建模（FDM）和立体光刻（SLA）技术进行了验证。在三个不同的位置制作了尺寸为 145 x 145 x 185 毫米的实验试样：45°角、水平和垂直。试样由三种长丝制成：SLA (Elastic 50A)、SLS (TPU 1301) 和 FDM (Flexfill 92A)；由于使用了支撑材料，试样的三个位置的长丝消耗量和打印时间都已确定。然后，对制作出的试样的生产可能性和所需结构的实现情况进行评估。
{"title":"Additive technologies use to create structures for technical fabric replacement","authors":"Jozef Tkac, Jiri Hajnys, Ondrej Mizera, Vieroslav Molnar, Gabriel Fedorko, Lenka Cepova","doi":"10.1177/15280837241245121","DOIUrl":"https://doi.org/10.1177/15280837241245121","url":null,"abstract":"The production technology of one of the essential structural parts of rubber-textile conveyor belts, the textile carcass, has not changed much since the start of their use. Specific changes occurred only in the material used when various synthetic fibres gradually replaced cotton. However, with the development of additive technologies, the possibility of changing the production technology is coming to the fore, when industrial textiles produced by classic weaving will not be used to make the carcass but a structure built by 3D printing. Confirmation of this change would represent a revolutionary breakthrough in the technology for rubber-textile conveyor belt production. Based on these facts, the possibility of using continuous 3D printing technology was verified to print a structure that would replace the technical fabric used in the conveyor belt carcass. As part of the research, the Selective Laser Sintering (SLS), Fused Deposition Modeling (FDM), and Stereolithography (SLA) technologies were verified. Experimental specimens with the dimensions of 145 x 145 x 185 mm were produced in three different positions: at an angle (45°), horizontally, and vertically. The specimens were made of three types of filament: SLA (Elastic 50A), SLS (TPU 1301), and FDM (Flexfill 92A); for each of the three positions of the specimen, filament consumption and printing time were determined due to the use of support material. Created specimens were then assessed regarding their production possibility and achievement of the desired structure.","PeriodicalId":16097,"journal":{"name":"Journal of Industrial Textiles","volume":"1 1","pages":""},"PeriodicalIF":3.2,"publicationDate":"2024-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140323733","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-03-27DOI: 10.1177/15280837241244692
Tamara Ruiz-Calleja, Alberto Jiménez-Suárez, Federico Sainz-de-Robles, Paula Cristóbal-Ruiz
Government policies focus on the textile sector to follow a tendency towards sustainability and circular economy, thus, raising the use of recycled textiles which require further performance improvement to be completely competitive with other textile products while using secondary treatments that are also environmentally friendly. In this study, a 100% recycled polyester weft-knitted fabric, currently used by commercial brands in the apparel and sport textile industry, is calendered and its properties are examined before and after such treatment. This research investigates variations in the physical (appearance and thickness), mechanical (tensile strength and elastic recovery), and physiological (water vapour resistance, spray test, and wettability) characteristics of the samples. The calendering treatment reduces water vapour resistance up to 23%, which is particularly interesting for garments used in sports. Additionally, the contact angle is increased by the calendering process which translates in poorer wettability. Novel findings of this work include that, whereas in the original fabric sweat marks are visible, sweat stains do not appear on the calendered fabric and moisture management improves, while mechanical properties do not undergo significant changes. These results have not been previosly found in the literature, giving a particular interest to a conventional process in this type of recycled fiber that can contribute to the advancement of knowledge in the textile industry and enhance the performance of treated fabrics. All these aspects make the treatment particularly interesting to improve the technical performance of the textile material while using an economic treatment with low effect on the environment.
{"title":"Effect of calendering on the performance of 100% recycled polyester weft-knitted fabrics","authors":"Tamara Ruiz-Calleja, Alberto Jiménez-Suárez, Federico Sainz-de-Robles, Paula Cristóbal-Ruiz","doi":"10.1177/15280837241244692","DOIUrl":"https://doi.org/10.1177/15280837241244692","url":null,"abstract":"Government policies focus on the textile sector to follow a tendency towards sustainability and circular economy, thus, raising the use of recycled textiles which require further performance improvement to be completely competitive with other textile products while using secondary treatments that are also environmentally friendly. In this study, a 100% recycled polyester weft-knitted fabric, currently used by commercial brands in the apparel and sport textile industry, is calendered and its properties are examined before and after such treatment. This research investigates variations in the physical (appearance and thickness), mechanical (tensile strength and elastic recovery), and physiological (water vapour resistance, spray test, and wettability) characteristics of the samples. The calendering treatment reduces water vapour resistance up to 23%, which is particularly interesting for garments used in sports. Additionally, the contact angle is increased by the calendering process which translates in poorer wettability. Novel findings of this work include that, whereas in the original fabric sweat marks are visible, sweat stains do not appear on the calendered fabric and moisture management improves, while mechanical properties do not undergo significant changes. These results have not been previosly found in the literature, giving a particular interest to a conventional process in this type of recycled fiber that can contribute to the advancement of knowledge in the textile industry and enhance the performance of treated fabrics. All these aspects make the treatment particularly interesting to improve the technical performance of the textile material while using an economic treatment with low effect on the environment.","PeriodicalId":16097,"journal":{"name":"Journal of Industrial Textiles","volume":"63 1","pages":""},"PeriodicalIF":3.2,"publicationDate":"2024-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140316511","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-03-25DOI: 10.1177/15280837231224076
Hanaa Abouzaid Khalil Abouzaid
In this study, bacterial cellulose was produced through the fermentation of a mixture of black tea, ginger, and sugar, and used to create bio-textile films on sugarcane-based media. Characterization included ribosomal RNA gene sequencing, FTIR spectroscopy, XRD, and SEM was used to examine surface morphology. The bio-textile films showed increasing UV resistance beyond 10 days of cultivation (T.UVA%; 0.13 ± 0.02, T.UVB%; 0.22 ± 0.01, UPF; 629 ± 2.12) and antimicrobial resistance was assessed by quantifying Colony-Forming Units (CFU), resulting in a 100% reduction in growth for both Escherichia coli and Staphylococcus aureus. Subsequently, after 15 days of cultivation, antimicrobial activity was evaluated using the disc agar diffusion method, yielding noteworthy outcomes. E. coli displayed a 25 mm zone of inhibition, S. aureus exhibited a 31 mm zone of inhibition, Candida albicans showed a 35 mm zone of inhibition, and Aspergillus niger presented a 22 mm zone of inhibition.
{"title":"Production and investigation of bio-textile films produced from bacterial cellulose biosynthesis from black tea and ginger, and cultivation on sugar cane media","authors":"Hanaa Abouzaid Khalil Abouzaid","doi":"10.1177/15280837231224076","DOIUrl":"https://doi.org/10.1177/15280837231224076","url":null,"abstract":"In this study, bacterial cellulose was produced through the fermentation of a mixture of black tea, ginger, and sugar, and used to create bio-textile films on sugarcane-based media. Characterization included ribosomal RNA gene sequencing, FTIR spectroscopy, XRD, and SEM was used to examine surface morphology. The bio-textile films showed increasing UV resistance beyond 10 days of cultivation (T.UVA%; 0.13 ± 0.02, T.UVB%; 0.22 ± 0.01, UPF; 629 ± 2.12) and antimicrobial resistance was assessed by quantifying Colony-Forming Units (CFU), resulting in a 100% reduction in growth for both Escherichia coli and Staphylococcus aureus. Subsequently, after 15 days of cultivation, antimicrobial activity was evaluated using the disc agar diffusion method, yielding noteworthy outcomes. E. coli displayed a 25 mm zone of inhibition, S. aureus exhibited a 31 mm zone of inhibition, Candida albicans showed a 35 mm zone of inhibition, and Aspergillus niger presented a 22 mm zone of inhibition.","PeriodicalId":16097,"journal":{"name":"Journal of Industrial Textiles","volume":"9 1","pages":""},"PeriodicalIF":3.2,"publicationDate":"2024-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140299985","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-03-22DOI: 10.1177/15280837241239232
Sundaramoorthy Palanisamy, Veronika Tunakova, Jana Ornstova, Monika Vysanska, Jiri Militky
Nowadays, electrically conductive textile materials are widely used also for sensing applications in addition to being used as antistatic, electromagnetic shielding, for creating smart textiles, etc. The main aim of this paper is to study the effect of tensile deformation applied on knitted fabrics on their electromagnetic shielding ability, electrical resistance, and porosity to gain knowledge for the construction of textile-based wireless strain sensors. For the experiment, silver-coated yarn was chosen to produce knitted fabrics with two different patterns and three levels of stitch densities. The uniaxial and biaxial deformation was applied to samples and at the same time, the change of electromagnetic shielding ability, electric resistance, and porosity of the sample set was evaluated. It can be summarized, that the vertical stretch has the highest positive effect on the electromagnetic shielding ability and the maximum shielding sensitivity is 12 % compared to other deformation types. In general, the electrical resistance decreases during increased stretch due to the increasing number of contacts between electrically conductive yarns, which causes a decrease in the contact resistance and also a decrease in total electrical resistance. The highest positive effect on the porosity of samples represents biaxial deformation. The finding that the overall shielding efficiency is positively influenced by the electrical conductivity of the sample and at the same time negatively influenced by the increasing porosity during tensile deformation was the motivation to construct a simple regression model for the prediction of the electromagnetic shielding ability of the sample during its extension.
{"title":"The effect of tensile deformation of knitted fabrics on their electromagnetic shielding ability, electrical resistance, and porosity","authors":"Sundaramoorthy Palanisamy, Veronika Tunakova, Jana Ornstova, Monika Vysanska, Jiri Militky","doi":"10.1177/15280837241239232","DOIUrl":"https://doi.org/10.1177/15280837241239232","url":null,"abstract":"Nowadays, electrically conductive textile materials are widely used also for sensing applications in addition to being used as antistatic, electromagnetic shielding, for creating smart textiles, etc. The main aim of this paper is to study the effect of tensile deformation applied on knitted fabrics on their electromagnetic shielding ability, electrical resistance, and porosity to gain knowledge for the construction of textile-based wireless strain sensors. For the experiment, silver-coated yarn was chosen to produce knitted fabrics with two different patterns and three levels of stitch densities. The uniaxial and biaxial deformation was applied to samples and at the same time, the change of electromagnetic shielding ability, electric resistance, and porosity of the sample set was evaluated. It can be summarized, that the vertical stretch has the highest positive effect on the electromagnetic shielding ability and the maximum shielding sensitivity is 12 % compared to other deformation types. In general, the electrical resistance decreases during increased stretch due to the increasing number of contacts between electrically conductive yarns, which causes a decrease in the contact resistance and also a decrease in total electrical resistance. The highest positive effect on the porosity of samples represents biaxial deformation. The finding that the overall shielding efficiency is positively influenced by the electrical conductivity of the sample and at the same time negatively influenced by the increasing porosity during tensile deformation was the motivation to construct a simple regression model for the prediction of the electromagnetic shielding ability of the sample during its extension.","PeriodicalId":16097,"journal":{"name":"Journal of Industrial Textiles","volume":"278 1","pages":""},"PeriodicalIF":3.2,"publicationDate":"2024-03-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140201774","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-03-13DOI: 10.1177/15280837241228275
Mohan Prasath Mani, Hemanth Ponnambalath Mohanadas, Ahmad Athif Mohd Faudzi, Ahmad Fauzi Ismail, Nick Tucker, Shahrol Mohamaddan, Suresh K Verma, Saravana Kumar Jaganathan
The present research paper explores the potential of electrospun nanofibers in the promising field of skin tissue engineering. Specifically, we propose an advanced preparation and characterization of an electrospun Polyurethane/Calcium Chloride (PU/CaCl2) nanocomposite scaffold, devised to boost the scaffold’s physicochemical and biological properties for skin tissue regeneration. By incorporating CaCl2 into the PU matrix using an electrospinning process, we were able to fabricate a novel nanocomposite scaffold. The morphological examination through Field Emission Scanning Electron Microscope (FESEM) revealed that the fiber diameter of the PU/CaCl2 (563 ± 147 nm) scaffold was notably smaller compared to the control (784 ± 149 nm). The presence of CaCl2 in the PU matrix was corroborated by Fourier-Transform Infrared Spectroscopy (FTIR) and Thermogravimetric Analysis (TGA). Furthermore, the PU/CaCl2 scaffold exhibited superior tensile strength (10.81 MPa) over pristine PU (Tensile −6.16 MPa, Contact angle - 109° ± 1° and Roughness - 854 ± 32 nm) and revealed enhanced wettability (72° ± 2°) and reduced surface roughness (274 ± 104 nm), as verified by Contact angle and Atomic Force Microscopy. The developed scaffold demonstrated improved anticoagulant properties, indicating its potential for successful integration within a biological environment. The improved properties of the PU/CaCl2 nanocomposite scaffold present a significant advancement in electrospun polymer nanofibers, offering a potential breakthrough in skin tissue engineering. However, additional studies are required to thoroughly evaluate the scaffold’s effectiveness in promoting cell adhesion, proliferation, and differentiation. We aim to catalyze significant advancements in the field by revealing the creation of a potent skin scaffold leveraging electrospun nanofibers. Encouraging deeper exploration into this innovative electrospun composite scaffold for skin tissue engineering, the PU/CaCl2 scaffold stands as a promising foundation for pioneering more innovative, efficient, and sustainable solutions in biomedical applications.
{"title":"Preparation, design, and characterization of an electrospun polyurethane/calcium chloride nanocomposite scaffold with improved properties for skin tissue regeneration","authors":"Mohan Prasath Mani, Hemanth Ponnambalath Mohanadas, Ahmad Athif Mohd Faudzi, Ahmad Fauzi Ismail, Nick Tucker, Shahrol Mohamaddan, Suresh K Verma, Saravana Kumar Jaganathan","doi":"10.1177/15280837241228275","DOIUrl":"https://doi.org/10.1177/15280837241228275","url":null,"abstract":"The present research paper explores the potential of electrospun nanofibers in the promising field of skin tissue engineering. Specifically, we propose an advanced preparation and characterization of an electrospun Polyurethane/Calcium Chloride (PU/CaCl<jats:sub>2</jats:sub>) nanocomposite scaffold, devised to boost the scaffold’s physicochemical and biological properties for skin tissue regeneration. By incorporating CaCl<jats:sub>2</jats:sub> into the PU matrix using an electrospinning process, we were able to fabricate a novel nanocomposite scaffold. The morphological examination through Field Emission Scanning Electron Microscope (FESEM) revealed that the fiber diameter of the PU/CaCl2 (563 ± 147 nm) scaffold was notably smaller compared to the control (784 ± 149 nm). The presence of CaCl<jats:sub>2</jats:sub> in the PU matrix was corroborated by Fourier-Transform Infrared Spectroscopy (FTIR) and Thermogravimetric Analysis (TGA). Furthermore, the PU/CaCl<jats:sub>2</jats:sub> scaffold exhibited superior tensile strength (10.81 MPa) over pristine PU (Tensile −6.16 MPa, Contact angle - 109° ± 1° and Roughness - 854 ± 32 nm) and revealed enhanced wettability (72° ± 2°) and reduced surface roughness (274 ± 104 nm), as verified by Contact angle and Atomic Force Microscopy. The developed scaffold demonstrated improved anticoagulant properties, indicating its potential for successful integration within a biological environment. The improved properties of the PU/CaCl<jats:sub>2</jats:sub> nanocomposite scaffold present a significant advancement in electrospun polymer nanofibers, offering a potential breakthrough in skin tissue engineering. However, additional studies are required to thoroughly evaluate the scaffold’s effectiveness in promoting cell adhesion, proliferation, and differentiation. We aim to catalyze significant advancements in the field by revealing the creation of a potent skin scaffold leveraging electrospun nanofibers. Encouraging deeper exploration into this innovative electrospun composite scaffold for skin tissue engineering, the PU/CaCl<jats:sub>2</jats:sub> scaffold stands as a promising foundation for pioneering more innovative, efficient, and sustainable solutions in biomedical applications.","PeriodicalId":16097,"journal":{"name":"Journal of Industrial Textiles","volume":"11 1","pages":""},"PeriodicalIF":3.2,"publicationDate":"2024-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140124993","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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