Tailoring the surface morphology of nanofibers determines its application to an excessive extent. At present, different structures of nanofibers have been produced such as wrinkled, grooved, porous, rough, etc. Amongst them, wrinkled nanofibers have attracted the attention of researchers due to their exceptional structure and properties such as coarse surface, high surface energy, high specific surface area, excellent mechanical properties, and good piezoelectricity resulting in serving successfully in various fields such as energy harvesting, air filtration, water filtration, gas sensors, biomedical applications, fuel cells, and energy storage. Therefore, this work aims to spotlight the importance of the wrinkled structure, methods, and strategies used for producing electrospun wrinkled nanofibers of various materials. This review focuses on the materials, preparation methods, and applications of the electrospun wrinkled nanofibers. This review can serve as an essential reference for the materials, formation methods, and applications of wrinkled nanofibers prepared via electrospinning.
{"title":"A mini-review on wrinkled nanofibers: Preparation principles via electrospinning and potential applications","authors":"Bilal Zaarour, Wanjun Liu, Waad Omran, Mohammed Firas Alhinnawi, Fadia Dib, Mahmoud Shikh Alshabab, Samir Ghannoum, Kamal Kayed, Ghaytha Mansour, Ghofran Balidi","doi":"10.1177/15280837241255396","DOIUrl":"https://doi.org/10.1177/15280837241255396","url":null,"abstract":"Tailoring the surface morphology of nanofibers determines its application to an excessive extent. At present, different structures of nanofibers have been produced such as wrinkled, grooved, porous, rough, etc. Amongst them, wrinkled nanofibers have attracted the attention of researchers due to their exceptional structure and properties such as coarse surface, high surface energy, high specific surface area, excellent mechanical properties, and good piezoelectricity resulting in serving successfully in various fields such as energy harvesting, air filtration, water filtration, gas sensors, biomedical applications, fuel cells, and energy storage. Therefore, this work aims to spotlight the importance of the wrinkled structure, methods, and strategies used for producing electrospun wrinkled nanofibers of various materials. This review focuses on the materials, preparation methods, and applications of the electrospun wrinkled nanofibers. This review can serve as an essential reference for the materials, formation methods, and applications of wrinkled nanofibers prepared via electrospinning.","PeriodicalId":16097,"journal":{"name":"Journal of Industrial Textiles","volume":"212 1","pages":""},"PeriodicalIF":3.2,"publicationDate":"2024-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141063604","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 : 2024-05-10DOI: 10.1177/15280837241254510
Zhuoran Bi, Tea Crnković
The textile industry contributes significantly to global warming and pollution, especially the leather industry, which uses livestock and toxic tanning processes that have a great environmental impact. Currently, efforts are being made to mitigate the negative impacts of the textile industry by using alternative non-toxic chemicals or by recycling fabric. More recent efforts explore utilization of non-conventional biomaterials and organisms, such as mushroom mycelia, algae or genetically-engineered microorganisms. In this study, we implemented slime mold Physarum polycephalum perfused through leather-like fabrics made from air-dried simple nutritious media in order to develop environmentally friendly, easy-to-manufacture and sustainable fabrics. Plasmodium was validated for its viability and propagation under non-sterile conditions and in contaminated environments on different media compositions made from agar, peach gum, gelatin, carrageenan or glycerol. We determined optimal media components to be agar, gelatin and glycerol which supported plasmodium growth and yielded sturdy and flexible fabric sheets after air-drying. Ultimately, plasmodium-perfused fabric sheets were sewed into apparel and footwear. This study demonstrates the use of simple media as a clothing fabric perfused with plasmodium, which produces intricate colors and patterns on the fabric. Plasmodium has the ability to enhance fabric properties due to its natural problem-solving abilities, such as biosensing, fabric self-repair, and distant fabric communication.
{"title":"Bio-leather: Sustainable clothing fabrics made from simple media ingredients and slime mold Physarum polycephalum","authors":"Zhuoran Bi, Tea Crnković","doi":"10.1177/15280837241254510","DOIUrl":"https://doi.org/10.1177/15280837241254510","url":null,"abstract":"The textile industry contributes significantly to global warming and pollution, especially the leather industry, which uses livestock and toxic tanning processes that have a great environmental impact. Currently, efforts are being made to mitigate the negative impacts of the textile industry by using alternative non-toxic chemicals or by recycling fabric. More recent efforts explore utilization of non-conventional biomaterials and organisms, such as mushroom mycelia, algae or genetically-engineered microorganisms. In this study, we implemented slime mold Physarum polycephalum perfused through leather-like fabrics made from air-dried simple nutritious media in order to develop environmentally friendly, easy-to-manufacture and sustainable fabrics. Plasmodium was validated for its viability and propagation under non-sterile conditions and in contaminated environments on different media compositions made from agar, peach gum, gelatin, carrageenan or glycerol. We determined optimal media components to be agar, gelatin and glycerol which supported plasmodium growth and yielded sturdy and flexible fabric sheets after air-drying. Ultimately, plasmodium-perfused fabric sheets were sewed into apparel and footwear. This study demonstrates the use of simple media as a clothing fabric perfused with plasmodium, which produces intricate colors and patterns on the fabric. Plasmodium has the ability to enhance fabric properties due to its natural problem-solving abilities, such as biosensing, fabric self-repair, and distant fabric communication.","PeriodicalId":16097,"journal":{"name":"Journal of Industrial Textiles","volume":"32 1","pages":""},"PeriodicalIF":3.2,"publicationDate":"2024-05-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140939054","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 : 2024-05-09DOI: 10.1177/15280837241253614
Bekinew Kitaw Dejene, Adane Dagnaw Gudayu
Three-dimensional (3D) woven and knitted spacer fabrics have emerged as significant advancements in the field of technical textiles, driven by notable progress made by the textile industry. These unique fabrics possess desirable characteristics that render them suitable for various technical applications. As we look towards the future, spacer fabrics are expected to find innovative applications in various functional products. However, despite the growing interest in their use in the technical textile sector, comprehensive reviews exploring their potential are lacking. Therefore, this review aims to fill this gap in the existing literature by examining the potential of 3D woven and knitted spacer fabrics in technical textiles. It provides a comprehensive exploration of their fabrication techniques, properties, key parameters, and potential applications in technical textiles. This review highlights that woven spacer fabrics exhibit high integrity and stability, making them suitable for composite reinforcement. On the other hand, knitted spacer fabrics offer a higher air-trapping capacity and a double-faced nature, leading to their extensive use in cushions, medical textiles, and protective technical textiles. Additionally, this review provides valuable insights for researchers and manufacturers interested in harnessing the potential of spacer fabrics for various functional products in the field of technical textiles.
{"title":"Exploring the potential of 3D woven and knitted spacer fabrics in technical textiles: A critical review","authors":"Bekinew Kitaw Dejene, Adane Dagnaw Gudayu","doi":"10.1177/15280837241253614","DOIUrl":"https://doi.org/10.1177/15280837241253614","url":null,"abstract":"Three-dimensional (3D) woven and knitted spacer fabrics have emerged as significant advancements in the field of technical textiles, driven by notable progress made by the textile industry. These unique fabrics possess desirable characteristics that render them suitable for various technical applications. As we look towards the future, spacer fabrics are expected to find innovative applications in various functional products. However, despite the growing interest in their use in the technical textile sector, comprehensive reviews exploring their potential are lacking. Therefore, this review aims to fill this gap in the existing literature by examining the potential of 3D woven and knitted spacer fabrics in technical textiles. It provides a comprehensive exploration of their fabrication techniques, properties, key parameters, and potential applications in technical textiles. This review highlights that woven spacer fabrics exhibit high integrity and stability, making them suitable for composite reinforcement. On the other hand, knitted spacer fabrics offer a higher air-trapping capacity and a double-faced nature, leading to their extensive use in cushions, medical textiles, and protective technical textiles. Additionally, this review provides valuable insights for researchers and manufacturers interested in harnessing the potential of spacer fabrics for various functional products in the field of technical textiles.","PeriodicalId":16097,"journal":{"name":"Journal of Industrial Textiles","volume":"48 1","pages":""},"PeriodicalIF":3.2,"publicationDate":"2024-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140939401","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 : 2024-05-03DOI: 10.1177/15280837241247342
Isidoro Gutiérrez-Álvarez, Santiago Celaya González, Ismael Fuente Merino, Luis Santiago Quindós, Carlos Saínz Fernández
Commercial facemasks have become a common tool during the COVID-19 pandemic. They are cheap, simple to use and some are capable of filtering out most particles in the air, protecting the user. These qualities are usually employed in relation to hurtful viruses or contaminants, but they could also be used to prevent the radioactive dose due to radon, which is the second leading cause of lung cancer worldwide. For that reason, the main goal of this study is to verify if facemasks could prevent radon decay products from entering the potential user’s lungs. Since these decay products are the main source of radioactive dose, several commercial facemasks were tested by exposing them to radon and then measuring the presence of radon daughters by gamma spectroscopy. Reusable facemasks made from materials such as cotton, polyester or neoprene appeared to be inefficient with only 40% filtering efficiency, Polypropylene woven masks being the only exception, with 80% efficiency. Surgical masks presented filtering efficiencies between 90 and 98%. FFP3 and FFP2 proved to be the most reliable, almost completely filtering out radon daughters with filtering efficiencies up to 98%. Results prove that the use of FFP3 and FFP2 facemasks could be a useful tool to reduce the radioactive dose due to radon in places where other techniques cannot be used or are not advisable.
{"title":"Evaluation of commercial facemasks to reduce the radioactive dose of radon daughters","authors":"Isidoro Gutiérrez-Álvarez, Santiago Celaya González, Ismael Fuente Merino, Luis Santiago Quindós, Carlos Saínz Fernández","doi":"10.1177/15280837241247342","DOIUrl":"https://doi.org/10.1177/15280837241247342","url":null,"abstract":"Commercial facemasks have become a common tool during the COVID-19 pandemic. They are cheap, simple to use and some are capable of filtering out most particles in the air, protecting the user. These qualities are usually employed in relation to hurtful viruses or contaminants, but they could also be used to prevent the radioactive dose due to radon, which is the second leading cause of lung cancer worldwide. For that reason, the main goal of this study is to verify if facemasks could prevent radon decay products from entering the potential user’s lungs. Since these decay products are the main source of radioactive dose, several commercial facemasks were tested by exposing them to radon and then measuring the presence of radon daughters by gamma spectroscopy. Reusable facemasks made from materials such as cotton, polyester or neoprene appeared to be inefficient with only 40% filtering efficiency, Polypropylene woven masks being the only exception, with 80% efficiency. Surgical masks presented filtering efficiencies between 90 and 98%. FFP3 and FFP2 proved to be the most reliable, almost completely filtering out radon daughters with filtering efficiencies up to 98%. Results prove that the use of FFP3 and FFP2 facemasks could be a useful tool to reduce the radioactive dose due to radon in places where other techniques cannot be used or are not advisable.","PeriodicalId":16097,"journal":{"name":"Journal of Industrial Textiles","volume":"4 1","pages":""},"PeriodicalIF":3.2,"publicationDate":"2024-05-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140835402","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 : 2024-04-29DOI: 10.1177/15280837241251493
Magdi El Messiry, Shaimaa Youssef El-Tarfawy, Rania El Deeb
The study aims to provide valuable insights into the development of sustainable and cost-effective composite materials, particularly focusing on the combination of palm fiber and jute fabric. The inclusion of palm fibers significantly enhances the stiffness and strength of the composite. The research involves the fabrication of composites with a consistent fiber-to-polymer ratio of 20% in all samples. However, the proportions of the various reinforcing components varied in each sample, with the palm fiber ratio to jute fabric set at 40%, 70%, and 100%. The resulting curved beam, designed as a low-speed collision bumper, surpasses its commercial counterparts in deflection. Increasing fiber volume percentages contribute to enhanced bending stiffness and flexural strength. Notably, the optimal ratio of 70% demonstrates the highest impact energy, surpassing the 40% ratio sample by 150%. The study underscores the successful production of a low-impact bumper through the synergistic reinforcement of jute and palm fibers. It emphasizes the specific optimal ratio (70%) as a substantial contribution to the sustainable development of composites for effective low-impact bumpers.
{"title":"A study on hybrid jute and palm fibers blend/polyester composites: Properties and potential end uses","authors":"Magdi El Messiry, Shaimaa Youssef El-Tarfawy, Rania El Deeb","doi":"10.1177/15280837241251493","DOIUrl":"https://doi.org/10.1177/15280837241251493","url":null,"abstract":"The study aims to provide valuable insights into the development of sustainable and cost-effective composite materials, particularly focusing on the combination of palm fiber and jute fabric. The inclusion of palm fibers significantly enhances the stiffness and strength of the composite. The research involves the fabrication of composites with a consistent fiber-to-polymer ratio of 20% in all samples. However, the proportions of the various reinforcing components varied in each sample, with the palm fiber ratio to jute fabric set at 40%, 70%, and 100%. The resulting curved beam, designed as a low-speed collision bumper, surpasses its commercial counterparts in deflection. Increasing fiber volume percentages contribute to enhanced bending stiffness and flexural strength. Notably, the optimal ratio of 70% demonstrates the highest impact energy, surpassing the 40% ratio sample by 150%. The study underscores the successful production of a low-impact bumper through the synergistic reinforcement of jute and palm fibers. It emphasizes the specific optimal ratio (70%) as a substantial contribution to the sustainable development of composites for effective low-impact bumpers.","PeriodicalId":16097,"journal":{"name":"Journal of Industrial Textiles","volume":"41 1","pages":""},"PeriodicalIF":3.2,"publicationDate":"2024-04-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140835241","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 : 2024-04-29DOI: 10.1177/15280837241248838
Hanul Lee, Seungsin Lee
In this study, antimicrobial and deodorizing nanofibrous composite membranes based on natural substances were developed for use in feminine sanitary napkins. Plant-derived natural essential oils, such as lemongrass oil and May Chang oil, were incorporated into polyvinyl alcohol nanofibers using emulsion electrospinning. The fiber morphology, oil distribution, and pore size distribution of the nanofibrous composite membranes were examined. The antimicrobial and deodorizing effects, tensile properties, and release behavior of the functional ingredients from the composite membranes were investigated to examine their use in sanitary napkins. Core–sheath nanofibers, in which lemongrass oil or May Chang oil was uniformly distributed within the fiber core, were fabricated using various oil contents. The essential oil-loaded nanofibrous composite membranes contained pores ranging from 0.130 to 1.349 µm in size. The release profiles of the essential oils from the composite membranes over an 8 h period demonstrated a continuous release of citral and limonene. Composite membranes containing either lemongrass oil or May Chang oil exhibited outstanding antimicrobial effects against vaginal pathogens, such as Candida albicans and Staphylococcus aureus, despite their low oil content. Deodorizing effects against ammonia gas were observed at oil contents higher than that required to achieve antimicrobial effects. The composite membranes exhibited lower Young’s modulus and greater elongation at break values under wet conditions compared to dry conditions. Our findings demonstrate that antimicrobial and deodorizing nanofibrous composite membranes based on plant-derived essential oils have the potential for use in feminine hygiene products.
{"title":"Development of essential oil-containing antimicrobial and deodorizing nanofibrous membranes for sanitary napkin applications","authors":"Hanul Lee, Seungsin Lee","doi":"10.1177/15280837241248838","DOIUrl":"https://doi.org/10.1177/15280837241248838","url":null,"abstract":"In this study, antimicrobial and deodorizing nanofibrous composite membranes based on natural substances were developed for use in feminine sanitary napkins. Plant-derived natural essential oils, such as lemongrass oil and May Chang oil, were incorporated into polyvinyl alcohol nanofibers using emulsion electrospinning. The fiber morphology, oil distribution, and pore size distribution of the nanofibrous composite membranes were examined. The antimicrobial and deodorizing effects, tensile properties, and release behavior of the functional ingredients from the composite membranes were investigated to examine their use in sanitary napkins. Core–sheath nanofibers, in which lemongrass oil or May Chang oil was uniformly distributed within the fiber core, were fabricated using various oil contents. The essential oil-loaded nanofibrous composite membranes contained pores ranging from 0.130 to 1.349 µm in size. The release profiles of the essential oils from the composite membranes over an 8 h period demonstrated a continuous release of citral and limonene. Composite membranes containing either lemongrass oil or May Chang oil exhibited outstanding antimicrobial effects against vaginal pathogens, such as Candida albicans and Staphylococcus aureus, despite their low oil content. Deodorizing effects against ammonia gas were observed at oil contents higher than that required to achieve antimicrobial effects. The composite membranes exhibited lower Young’s modulus and greater elongation at break values under wet conditions compared to dry conditions. Our findings demonstrate that antimicrobial and deodorizing nanofibrous composite membranes based on plant-derived essential oils have the potential for use in feminine hygiene products.","PeriodicalId":16097,"journal":{"name":"Journal of Industrial Textiles","volume":"18 1","pages":""},"PeriodicalIF":3.2,"publicationDate":"2024-04-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140835248","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 : 2024-04-24DOI: 10.1177/15280837241236888
Ailan Wan, Xiaoxiao Wang, Deng Zeng, Qian Qi
To utilize the human body heat to trigger the shape memory smart textiles, shape memory polyurethane filaments (SMPUF) with three different transition temperatures were prepared based on modified polycaprolactone diol (PCL) by dry spinning. The chemical structure was characterized systemically. The shape memory properties, tensile properties, resilience, and viscoelasticity were studied comprehensively. The results revealed that the phase transition temperatures were close to human body temperature which measured 19.97°C, 27.33°C, and 30.37°C, respectively. Additionally, the fraction of hydrogen bonds in the samples was about 30% less than that of polyurethane filaments (PUF). The best shape fixity ratio was 88.5% and the shape recovery ratio was 96.7% belonging to samples with a transition temperature of 30.37°C. At 55°C, the elastic recovery was 45.2% higher than that at 22°C. As the temperature rose, the elastic modulus of SMPUF decreased until it reached that of PUF. The static and dynamic viscoelasticity of SMPUF indicated that the phase transition of the soft segment affects the movement of the molecular chain. SMPUF can be used as compression garments, and wearable orthopedic devices, such as the elastic bands prepared in this work.
{"title":"Preparation and properties of shape memory polyurethane filaments triggered by human body temperature","authors":"Ailan Wan, Xiaoxiao Wang, Deng Zeng, Qian Qi","doi":"10.1177/15280837241236888","DOIUrl":"https://doi.org/10.1177/15280837241236888","url":null,"abstract":"To utilize the human body heat to trigger the shape memory smart textiles, shape memory polyurethane filaments (SMPUF) with three different transition temperatures were prepared based on modified polycaprolactone diol (PCL) by dry spinning. The chemical structure was characterized systemically. The shape memory properties, tensile properties, resilience, and viscoelasticity were studied comprehensively. The results revealed that the phase transition temperatures were close to human body temperature which measured 19.97°C, 27.33°C, and 30.37°C, respectively. Additionally, the fraction of hydrogen bonds in the samples was about 30% less than that of polyurethane filaments (PUF). The best shape fixity ratio was 88.5% and the shape recovery ratio was 96.7% belonging to samples with a transition temperature of 30.37°C. At 55°C, the elastic recovery was 45.2% higher than that at 22°C. As the temperature rose, the elastic modulus of SMPUF decreased until it reached that of PUF. The static and dynamic viscoelasticity of SMPUF indicated that the phase transition of the soft segment affects the movement of the molecular chain. SMPUF can be used as compression garments, and wearable orthopedic devices, such as the elastic bands prepared in this work.","PeriodicalId":16097,"journal":{"name":"Journal of Industrial Textiles","volume":"18 1","pages":""},"PeriodicalIF":3.2,"publicationDate":"2024-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140805393","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 : 2024-04-15DOI: 10.1177/15280837241238446
Soo-Min Lee, Gyomyung Shin, Hyucksoon Im, Midum Oh, Sofia Castro Avalos, Mi-Jeong Yoon, Joon-Sung Kim, Juyeon Park, Sung-Hoon Ahn
Shape memory alloys (SMAs) have an innate property that allows them to return to a memorized form when stimulated. They have been recently designed as flexible fabrics for use in wearable assistive devices. This study aimed to develop a rehabilitation assistive glove with good wearability for a hemiplegic patient using a knitted SMA with a high-unidirectional contractile response. We fabricated warp-knitted SMA actuators, which had higher contractile responses than those of weft-knitted SMA. The use of a knitting loom allowed these actuators to fit all the fingers of a patient. We developed a full-fabric glove, placed the SMA wires on the finger regions to form a tendon-driven structure, and attached knitted SMA actuators to the dorsal and palmar sides of the hand to assist flexion and extension. The joint range of motion after glove actuation increased by 11.620% and 141.710% in flexion and extension, respectively. The range of motion improved more with glove rehabilitation than with thermal stimulation or no actuation. The grip force also increased by 52.400% after rehabilitation exercises. The safety of the heat generated during actuation was confirmed, and its applicability as a thermal stimulus was validated (based on increased skin temperature). These outcomes suggest the practical potential of warp-knitted SMAs in fully fabricated wearable assistive devices.
形状记忆合金（SMA）具有一种与生俱来的特性，在受到刺激时可以恢复到记忆中的形状。最近，它们被设计成可用于可穿戴辅助设备的柔性织物。本研究旨在利用具有高单向收缩反应的针织 SMA，为偏瘫患者开发一种具有良好可穿戴性的康复辅助手套。我们制作了经编 SMA 激励器，其收缩响应高于纬编 SMA 激励器。使用编织机可使这些致动器适合患者的所有手指。我们开发了一种全织物手套，将 SMA 线置于手指区域以形成肌腱驱动结构，并将针织 SMA 驱动器连接到手背和手掌两侧以辅助屈伸。手套驱动后，关节的屈伸活动范围分别增加了 11.620% 和 141.710%。与热刺激或不驱动相比，手套康复治疗对关节活动范围的改善更大。康复训练后，握力也增加了 52.400%。启动过程中产生的热量的安全性得到了证实，其作为热刺激的适用性也得到了验证（基于皮肤温度的升高）。这些结果表明，经编 SMA 在完全制造的可穿戴辅助设备中具有实用潜力。
{"title":"Feasibility of a warp-knitted shape memory alloy rehabilitation glove","authors":"Soo-Min Lee, Gyomyung Shin, Hyucksoon Im, Midum Oh, Sofia Castro Avalos, Mi-Jeong Yoon, Joon-Sung Kim, Juyeon Park, Sung-Hoon Ahn","doi":"10.1177/15280837241238446","DOIUrl":"https://doi.org/10.1177/15280837241238446","url":null,"abstract":"Shape memory alloys (SMAs) have an innate property that allows them to return to a memorized form when stimulated. They have been recently designed as flexible fabrics for use in wearable assistive devices. This study aimed to develop a rehabilitation assistive glove with good wearability for a hemiplegic patient using a knitted SMA with a high-unidirectional contractile response. We fabricated warp-knitted SMA actuators, which had higher contractile responses than those of weft-knitted SMA. The use of a knitting loom allowed these actuators to fit all the fingers of a patient. We developed a full-fabric glove, placed the SMA wires on the finger regions to form a tendon-driven structure, and attached knitted SMA actuators to the dorsal and palmar sides of the hand to assist flexion and extension. The joint range of motion after glove actuation increased by 11.620% and 141.710% in flexion and extension, respectively. The range of motion improved more with glove rehabilitation than with thermal stimulation or no actuation. The grip force also increased by 52.400% after rehabilitation exercises. The safety of the heat generated during actuation was confirmed, and its applicability as a thermal stimulus was validated (based on increased skin temperature). These outcomes suggest the practical potential of warp-knitted SMAs in fully fabricated wearable assistive devices.","PeriodicalId":16097,"journal":{"name":"Journal of Industrial Textiles","volume":"516 1","pages":""},"PeriodicalIF":3.2,"publicationDate":"2024-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140585930","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 : 2024-04-12DOI: 10.1177/15280837241246750
Dan Yang, Kai Zhu, Shengdong Liu, Fan Fei, Jinchun Li, Xiaogang Chen
In this paper, a new type of core-spun compound aramid yarn has been applied in the construction of UD fabric to investigate if the ballistic performance of the whole fabric could be positively influenced. Three types of fabrics (Fa, Fb and Fc) herein have been developed. Fa is the traditional type of UD fabric with two layers laying at the angle of 0°/90°. Fb is made by adding new CSC aramid yarns inside of Fa at the angle of 0°/90°. Fc is further developed from Fb via changing yarn-ply directions as 45°/-45°, to analyze if the yarn-ply directions would influence on the ballistic performance of new UD fabric. The result is quite positive, as it shows that Fb and Fc have apparent energy absorption capability than Fa, and Fc is the best. This indicates that the introduction of core-spun compound aramid yarns could indeed improve the ballistic performance of UD fabric, and the yarn-ply direction of 45°/-45° is better than that of 0°/90° to absorb more energy. This research has been investigated with the assistance of both the ballistic test and the FEA model. Energy absorption and penetration resistance mechanism are the two major aspects to analyze to reflect the ballistic performance of these fabrics.
本文将一种新型包芯纺复合芳纶纱应用于 UD 织物的结构中，以研究是否能对整个织物的防弹性能产生积极影响。本文开发了三种类型的织物（Fa、Fb 和 Fc）。Fa 是传统类型的 UD 织物，两层以 0°/90° 角铺设。Fb 是在 0°/90° 角的 Fa 内加入新的 CSC 芳纶纱线制成的。Fc 是在 Fb 的基础上，通过改变纱线层向为 45°/-45°，进一步发展而成的，目的是分析纱线层向是否会影响新型 UD 织物的弹道性能。结果显示，Fb 和 Fc 的能量吸收能力明显优于 Fa，其中 Fc 的能量吸收能力最好。这表明，采用包芯纺复合芳纶纱确实可以改善 UD 织物的防弹性能，而且 45°/-45° 的纱线层向比 0°/90° 的纱线层向更能吸收更多的能量。本研究通过弹道测试和有限元分析模型进行了研究。能量吸收和抗穿透机制是反映这些织物弹道性能的两个主要分析方面。
{"title":"Research on the creation of new UD laminates and its ballistic performance using CSC aramid yarns via experiment and FEA analysis","authors":"Dan Yang, Kai Zhu, Shengdong Liu, Fan Fei, Jinchun Li, Xiaogang Chen","doi":"10.1177/15280837241246750","DOIUrl":"https://doi.org/10.1177/15280837241246750","url":null,"abstract":"In this paper, a new type of core-spun compound aramid yarn has been applied in the construction of UD fabric to investigate if the ballistic performance of the whole fabric could be positively influenced. Three types of fabrics (F<jats:sub>a</jats:sub>, F<jats:sub>b</jats:sub> and F<jats:sub>c</jats:sub>) herein have been developed. F<jats:sub>a</jats:sub> is the traditional type of UD fabric with two layers laying at the angle of 0°/90°. F<jats:sub>b</jats:sub> is made by adding new CSC aramid yarns inside of F<jats:sub>a</jats:sub> at the angle of 0°/90°. F<jats:sub>c</jats:sub> is further developed from F<jats:sub>b</jats:sub> via changing yarn-ply directions as 45°/-45°, to analyze if the yarn-ply directions would influence on the ballistic performance of new UD fabric. The result is quite positive, as it shows that F<jats:sub>b</jats:sub> and F<jats:sub>c</jats:sub> have apparent energy absorption capability than F<jats:sub>a</jats:sub>, and F<jats:sub>c</jats:sub> is the best. This indicates that the introduction of core-spun compound aramid yarns could indeed improve the ballistic performance of UD fabric, and the yarn-ply direction of 45°/-45° is better than that of 0°/90° to absorb more energy. This research has been investigated with the assistance of both the ballistic test and the FEA model. Energy absorption and penetration resistance mechanism are the two major aspects to analyze to reflect the ballistic performance of these fabrics.","PeriodicalId":16097,"journal":{"name":"Journal of Industrial Textiles","volume":"53 1","pages":""},"PeriodicalIF":3.2,"publicationDate":"2024-04-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140585919","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: 10.1177/15280837241243006
Lizhi Xu, Xuan Zhou, Wenke Ren, Rui Zhang, Yi Zhou, Guangfa Gao
This paper studies the influence of the weave parameter on the ballistic performance of multi-ply systems. Three types of plain weaves were put into investigation, namely, A090, A200, and A400. Tensile and yarn pull-out tests were performed to investigate the responses of fabric upon quasi-static loading. Penetration tests were performed to characterize the energy absorption capability of different multi-ply systems at impacting velocities ranging from 250 m/s to 460 m/s. It was found that the strength of the fabric sample increased almost linearly with fabric areal density, and the coarser weaves exhibited a greater resistance against yarn pull-out. The ballistic limit ( V50) of finer weave 13A9, is around than 42.5% higher than coarser weave 3A4. In terms of hybrid systems, placing finer fabrics in front and coarser fabrics in the rear exhibits higher ballistic limits than the reversed sequence (8–20 m/s differences), while placing coarser fabrics in front exhibited greater energy absorption capability when the impact velocity is sufficient to cause instant and localized failure. It was also found that the ballistic performance of the hybrid systems does not alter significantly with the mass percentage of the coarser weaves at high impact velocities (greater than 400 m/s). The results indicate that replacing the expensive ballistic weaves with cheap materials in a hybrid system is a reasonable alternative to achieve cost reduction without significant performance degradation.
{"title":"The ballistic performance of plain-weave multi-ply systems: An experimental investigation","authors":"Lizhi Xu, Xuan Zhou, Wenke Ren, Rui Zhang, Yi Zhou, Guangfa Gao","doi":"10.1177/15280837241243006","DOIUrl":"https://doi.org/10.1177/15280837241243006","url":null,"abstract":"This paper studies the influence of the weave parameter on the ballistic performance of multi-ply systems. Three types of plain weaves were put into investigation, namely, A090, A200, and A400. Tensile and yarn pull-out tests were performed to investigate the responses of fabric upon quasi-static loading. Penetration tests were performed to characterize the energy absorption capability of different multi-ply systems at impacting velocities ranging from 250 m/s to 460 m/s. It was found that the strength of the fabric sample increased almost linearly with fabric areal density, and the coarser weaves exhibited a greater resistance against yarn pull-out. The ballistic limit ( V<jats:sub>50</jats:sub>) of finer weave 13A9, is around than 42.5% higher than coarser weave 3A4. In terms of hybrid systems, placing finer fabrics in front and coarser fabrics in the rear exhibits higher ballistic limits than the reversed sequence (8–20 m/s differences), while placing coarser fabrics in front exhibited greater energy absorption capability when the impact velocity is sufficient to cause instant and localized failure. It was also found that the ballistic performance of the hybrid systems does not alter significantly with the mass percentage of the coarser weaves at high impact velocities (greater than 400 m/s). The results indicate that replacing the expensive ballistic weaves with cheap materials in a hybrid system is a reasonable alternative to achieve cost reduction without significant performance degradation.","PeriodicalId":16097,"journal":{"name":"Journal of Industrial Textiles","volume":"12 1","pages":""},"PeriodicalIF":3.2,"publicationDate":"2024-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140585720","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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