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Investigation of the Accelerated Ageing of Carbon-Epoxy Composites on their Mechanical Properties 碳-环氧树脂复合材料加速老化对其力学性能的影响研究
IF 0.9 4区 工程技术 Q3 MATERIALS SCIENCE, TEXTILES Pub Date : 2024-01-09 DOI: 10.2478/ftee-2023-0057
Dorota Zielińska, Katarzyna Kośla, Ewelina Kosińska, Edyta Chmal-Fudali, Bartłomiej Bereska, Barbara Helizanowicz, Anna Bednarowicz
Abstract In this work, carbon-epoxy composites obtained by an autoclave process were subjected to accelerated ageing in controlled conditions of temperature, water and UV radiation. Each composite was exposed to salt water at 60°C or UV radiation at 60°C over a period of 6 months. Changes within the composites were evaluated by mass and density variation, mechanical testing and also in terms of camouflage. Results did not show significant changes in mass loss or density, and it was found that mechanical properties had decreased slightly. The biggest change is in camouflage. It was observed that during accelerated ageing, the composites’ reemission coefficient becomes too high and composites lose camouflage properties.
摘要 在这项工作中,通过高压釜工艺获得的碳-环氧复合材料在温度、水和紫外线辐射受控条件下进行了加速老化。每种复合材料在 60°C 的盐水或 60°C 的紫外线辐射下暴露 6 个月。通过质量和密度变化、机械测试以及伪装效果,对复合材料内部的变化进行了评估。结果显示,质量损失或密度变化不大,机械性能略有下降。最大的变化是伪装。据观察,在加速老化过程中,复合材料的再发射系数变得过高,复合材料失去了伪装特性。
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引用次数: 0
Knitted Heating Mats 针织发热垫
IF 0.9 4区 工程技术 Q3 MATERIALS SCIENCE, TEXTILES Pub Date : 2024-01-09 DOI: 10.2478/ftee-2023-0053
K. Pieklak, Zbigniew Mikołajczyk, Julianna Łopińska
Abstract The paper deals with conceptual designs and research on flexible knitted heating mats differing in construction from textile heaters on low-elastic woven or nonwoven-foil substrates. Two variants of heating mats with elasticity from 100 to 300 % of relative elongation were designed and manufactured using knitting technology. The heating elements of the mats were parallel-connected sets of electrically conducted carbon threads and synthetic threads coated with silver. With considerable elongation in the range of 210÷270 % no damage was observed to the heating elements and resistance changes during the stretching process equaled from 0.015 to 0.22 Ω/% of elongation. The optimum power of the knitted heater in the range from 16 to 41 W, with high thermal efficiency for a 12 V supply voltage, was obtained thanks to proper density of the electrically conductive threads (resistors) and the appropriate structure of the knitted fabric. The surface temperature of the heater can be adjusted from 34 to 43 °C, which corresponds to human thermal comfort. One of the variants of the knitted heaters was applied in the construction of the seat and backrest of an office chair.
摘要 本文论述了柔性针织加热垫的概念设计和研究,其结构不同于低弹性编织物或无纺布箔基材上的纺织加热器。利用针织技术设计和制造了两种弹性为相对伸长率 100% 至 300% 的加热垫。加热垫的加热元件是平行连接的一组导电碳线和涂有银的合成线。在伸长率为 210% 至 270% 的相当大的范围内,没有观察到加热元件损坏,拉伸过程中的电阻变化相当于 0.015 至 0.22 Ω/%的伸长率。由于导电线(电阻器)密度适当,针织物结构合理,因此在 12 V 电源电压下,针织加热器的最佳功率为 16 至 41 W,热效率高。加热器的表面温度可在 34 ℃ 至 43 ℃ 之间调节,符合人体的热舒适度。针织加热器的一种变体被用于制造办公椅的座椅和靠背。
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引用次数: 0
Evaluation of Insulation against Contact Heat, Radiant Heat and Sensory Comfort of Basalt Fabric-Based Composites with Parylene C Coating 评估带有聚对二甲苯 C 涂层的玄武岩织物基复合材料对接触热、辐射热和感官舒适性的隔热性能
IF 0.9 4区 工程技术 Q3 MATERIALS SCIENCE, TEXTILES Pub Date : 2023-12-15 DOI: 10.2478/ftee-2023-0050
M. Tokarska, P. Miśkiewicz, A. Puszkarz, Andrzej Nosal
Abstract The article concerns research on using Parylene C coating on basalt fabric-based composites with potential use in protective clothing to improve their insulation against contact heat and radiant heat, as well as the sensory comfort of the user. The outcomes of the contact heat method showed that applying Parylene C coating improved the thermal insulation of all tested composites. Two of them achieved the first efficiency level of protection. The results of the radiant heat method presented that using the Parylene C coating did not cause changes in the thermal insulation against heat radiation of all tested materials; the radiant heat transfer index reached values in the range of 12.4 - 12.9 s. X-ray tomography (micro-CT) allowed for identifying breaks/snaps in basalt fibers irritating the user’s skin in direct contact with the composite. Micro-CT results also showed that using Parylene C coating eliminated the effect of skin irritation and increased the usability of basalt fabrics in clothing.
摘要 这篇文章涉及在玄武岩织物基复合材料上使用聚对二甲苯 C 涂层的研究,这种涂层有可能用于防护服,以提高其对接触热和辐射热的隔热性能,并改善使用者的感官舒适度。接触热法的结果表明,使用 Parylene C 涂层可提高所有测试复合材料的隔热性能。其中有两种复合材料达到了一级保护效率。辐射热法的结果表明,使用 Parylene C 涂层不会改变所有受测材料对热辐射的隔热性能;辐射传热指数达到了 12.4 - 12.9 s 的范围内。显微断层扫描结果还显示,使用 Parylene C 涂层可消除对皮肤的刺激,提高玄武岩织物在服装中的可用性。
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引用次数: 0
Digital Inheritance of Traditional Mongolian Robes of the Nayman Tribe 奈曼部落传统蒙古袍的数字化传承
IF 0.9 4区 工程技术 Q3 MATERIALS SCIENCE, TEXTILES Pub Date : 2023-12-11 DOI: 10.2478/ftee-2023-0049
Hui Shi, Ting Duan, Xiao Yu, Qi Dong
Abstract The Mongolian robe is the crystallisation of the wisdom of Mongolian people after a long period of social practice and one of the intangible cultural heritages of humanity. With the gradual disappearance of the nomadic lifestyle in the steppe, it is not easy to protect and pass on traditional Mongolian dress culture and traditional handicraft technology. This study used the digital twin concept to construct a digital twin to try on clothes for a model in a virtual environment, to realise a mirror image presentation of the target physical entity, and to use effective modern technology to protect and pass on the traditional clothing. The experiment used an AlphaM4 3D body scanner to obtain a 3D human body model, as well as reverse engineering technology to process the initial data, such as noise reduction, streamlining, hole patching and smoothing to build a personalised human body model. The traditional black cotton robe of the Nayman tribe researched in the field was mapped by the planar structure design method, and its structure and 2D samples were recovered. A 3D model of the traditional cotton robe of the Nayman tribe was established based on 3D simulation technology to achieve a 3D virtual display effect, enable better dissemination and inheritance, and give a new vitality to non-heritage clothing in the digital era. The research results can provide fresh ideas and technical support for the digital estate and development of other traditional costumes, as well as contribute to the construction of digital resources for intangible cultural heritage.
蒙古族长袍是蒙古族人民长期社会实践智慧的结晶,是人类非物质文化遗产之一。随着草原游牧生活方式的逐渐消失,蒙古族传统服饰文化和传统手工艺技术的保护和传承变得不容易。本研究运用数字孪生概念,构建数字孪生模型,在虚拟环境中为模特试衣,实现目标实体的镜像呈现,利用有效的现代技术对传统服装进行保护和传承。实验采用alphaham4三维人体扫描仪获取三维人体模型,并采用逆向工程技术对初始数据进行降噪、流线、补孔、平滑等处理,构建个性化人体模型。采用平面结构设计方法对野外研究的内曼族传统黑棉袍进行了测绘,并恢复了其结构和二维样品。基于三维仿真技术,建立内曼族传统棉袍的三维模型,实现三维虚拟展示效果,更好地传播和传承,为非传承服饰在数字时代赋予新的活力。研究成果可以为其他传统服饰的数字化遗产和开发提供新的思路和技术支持,也可以为非物质文化遗产数字化资源的建设做出贡献。
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引用次数: 0
Experimental Investigation on the Bending Behavior of Weft Interlaced Multilayered Woven Fabrics for Composite Applications 复合应用中纬线交错多层编织物弯曲行为的实验研究
IF 0.9 4区 工程技术 Q3 MATERIALS SCIENCE, TEXTILES Pub Date : 2023-12-08 DOI: 10.2478/ftee-2023-0042
P. Schegner, M. Vorhof, D. Weise, C. Sennewald, Jasmin Pilgrim, G. Hoffmann, Chokri Cherif
Abstract Direct preforming processes have potential for fiber-reinforced semi-finished products, creating 3D structures with strong delamination resistance using double-flat-steel-healds. However, the shedding method limits pattern variety, necessitating alternative options for interlacing diversity. One approach is using weft yarn instead of warp yarn for interlacing. This study explores its impact on mechanical properties, focusing on bending behavior, fiber volume content, and micrograph analysis of infiltrated warp and weft interlaced structures. The result shows interesting differences in mechanical behavior regarding different weave types and test direction as well as communalities within the individual structures.
直接预成型工艺具有纤维增强半成品的潜力,使用双扁钢护套创建具有强大抗分层能力的3D结构。然而,脱落方法限制了图案的多样性,需要替代方法来交错多样性。一种方法是用纬纱代替经纱进行交织。本研究探讨了其对机械性能的影响,重点是弯曲行为、纤维体积含量和渗透经纬交织结构的显微照片分析。结果表明,不同的编织类型和测试方向以及单个结构内的群落在力学行为上存在有趣的差异。
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引用次数: 0
Burial Robes of the Polish King Sigismund III Vasa. Analysis of Textiles and Clothing 波兰国王西吉斯蒙德三世-瓦萨的葬袍。纺织品和服装分析
IF 0.9 4区 工程技术 Q3 MATERIALS SCIENCE, TEXTILES Pub Date : 2023-12-06 DOI: 10.2478/ftee-2023-0043
M. Cybulska, A. Drążkowska
Abstract The subject of the paper are the grave robes of the Polish King Zygmunt III Vasa, resting in the crypt in the Archcathedral Basilica of Saint Stanislaus and Saint Wenceslaus on the Wawel Hill in Kraków. The studies presented were possible thanks to an ‘in situ’ analysis of the clothes and a possibility of taking samples of textiles from which the clothing was sewn. The paper presents the results of a comprehensive textile analysis of fabrics, a description of the clothing that made up the funerary robes and analysis of the results obtained in the context of historical sources and works of art depicting the monarch.
本文的主题是波兰国王齐格蒙特三世瓦萨的墓袍,它被安放在Kraków瓦维尔山上的圣斯坦尼斯劳斯和圣温塞斯劳斯大教堂的地下室里。由于对衣服进行了“现场”分析,并有可能从缝制衣服的纺织品中取样,这些研究才成为可能。本文介绍了对织物进行全面的纺织品分析的结果,描述了构成葬礼长袍的服装,并分析了在历史资料和描绘君主的艺术作品的背景下获得的结果。
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引用次数: 0
Extracellular activity of proteases from Yarrowia lipolytica IPS21 as a function of the carbon and nitrogen source 脂溶性亚罗菌 IPS21 蛋白酶的胞外活性与碳源和氮源的关系
IF 0.9 4区 工程技术 Q3 MATERIALS SCIENCE, TEXTILES Pub Date : 2023-12-06 DOI: 10.2478/ftee-2023-0046
Dorota Wieczorek, Katarzyna Miśkiewicz, D. Gendaszewska, Paulina Pipiak, M. Lasoń-Rydel, Katarzyna Sieczyńska, K. Ławińska
Abstract The yeast strain Yarrowia lipolytica IPS 21 was tested for its ability to produce the protease enzyme on analytically pure carbon sources as well as on waste carbon sources. It was confirmed that the yeast Y. lipolytica IPS21 can have a higher proteolytic activity in the presence of waste carbon sources in chrome-tanned leather shavings (CTLS) than on yeast extract alone. This is confirmed by the high concentration of amino acids in samples with CTLS, suggesting increased degradation of CTLS by Y. lipolytica or secretion of proteases into the medium. It was also confirmed that metals accumulate mainly in the biomass and not in the supernatant. The biomass was also found to contain high levels of Ca, K and P, which are essential for plant growth. These results show that Y. lipolytica strain IPS21 can be used for the production of extracellular alkaline proteases and for the degradation of protein waste.
摘要研究了酵母解脂耶氏菌IPS 21在纯碳源和废碳源上产生蛋白酶的能力。结果表明,在铬鞣皮屑(CTLS)废碳源存在的情况下,酵母脂解酵母IPS21具有更高的蛋白水解活性。CTLS样品中氨基酸浓度高证实了这一点,表明溶脂Y.菌对CTLS的降解或向培养基中分泌蛋白酶增加。金属主要在生物量中积累,而不是在上清液中积累。生物量还被发现含有高水平的钙、钾和磷,这是植物生长所必需的。这些结果表明,该菌株IPS21可用于生产细胞外碱性蛋白酶和降解蛋白质废物。
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引用次数: 0
Effect of eco-friendly digital printing on the fastness properties of single jersey knitted fabrics 环保数码印花对单面针织物牢度性能的影响
IF 0.9 4区 工程技术 Q3 MATERIALS SCIENCE, TEXTILES Pub Date : 2023-12-01 DOI: 10.2478/ftee-2023-0048
F. Kadem, Şehpal Özdemir
Abstract In this study, single jersey knitted fabrics were produced from 100 % Ne 12/1 cotton, 100 % Ne 30/1 cotton, Ne 12/1 70% cotton + 30% hemp, Ne 30/1 50% modal + 50 % cotton, Ne 30/1 100 % viscose, and Ne 30/1 50 % viscose + 50 % cotton. The raw materials were bleached and singed, after which reactive pretreatment paste recipes were padded onto the fabrics, and then colored with digital printing. Fastness analyses and spectrophotometric color measurements were applied to the samples. When the results were determined, it was obviously seen that the washing, ironing, and rubbing fastness are of very high degrees because reactive dyestuffs make covalent bonds with the fibers. Thus, the increase in the amount of thickener also increased the bonding and provided better adhesion of the color.
摘要 本研究采用 100% Ne 12/1 棉、100% Ne 30/1 棉、Ne 12/1 70% 棉 + 30% 麻、Ne 30/1 50% 莫代尔 + 50% 棉、Ne 30/1 100% 粘胶和 Ne 30/1 50% 粘胶 + 50% 棉生产单面针织面料。原材料经过漂白和烧毛处理,然后将活性预处理浆料配方轧在织物上,再用数码印花上色。对样品进行牢度分析和分光光度颜色测量。结果表明,由于活性染料能与纤维形成共价键,因此洗涤牢度、熨烫牢度和摩擦牢度都非常高。因此,增稠剂用量的增加也增加了粘合力,使颜色有更好的附着力。
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引用次数: 0
Fabric Attractiveness Using Four Sensory Evaluators 用四种感官评价器评价织物吸引力
4区 工程技术 Q3 MATERIALS SCIENCE, TEXTILES Pub Date : 2023-10-26 DOI: 10.2478/ftee-2023-0041
Duje Kodžoman, Vanja Čok, Anja Podlesek, Alenka Pavko Čuden
Abstract All senses elicit emotional responses to goods, services, and the environment. They also play an important role in the process of fashion design and its evaluation. This research is a continuation of several preliminary studies we conducted online to define three attractive and three unattractive colors, textures, smells, sounds, and tastes. In the present study, a sample of textile engineering and fashion design students and experts (N = 54) assessed four groups of 6 fabric samples (sensory evaluators) selected based on the results of the preliminary studies. Each group of fabrics was assessed in one of four sensory modalities (except taste). Two semantic differentials were used to assess each sensory modality: attractive/unattractive and boring/interesting in the case of color, insensitive/sensitive in the case of texture, disturbing/calming in the case of sound, and cheap/luxurious in the case of smell. We found that among the fabrics in six different colors, the pink fabric was the most attractive. Of the six textures presented, the knitted rib texture was found to be the most attractive to touch. The scent of lemon essential oil was perceived as the most attractive among the six scents used, and the friction sound of suede leather was perceived as the most attractive among the six friction sounds of fabrics. Cluster analysis showed that the attractiveness of scents and colors of six fabric samples was highly differentiated and (almost) each sample was perceived as unique, while the attractiveness of the texture and sound of different samples was less differentiated and the samples were divided into only two groups. This suggests that discrimination of fabric attractiveness may be better in some sensory evaluators/modalities than in others. The results of this study will be useful for further research on the integration of different sensory modalities in fabric perception and garment preferences.
所有的感官都会引起对商品、服务和环境的情感反应。他们在服装设计的过程和评价中也起着重要的作用。这项研究是我们在网上进行的几项初步研究的延续,我们定义了三种吸引人的颜色和三种不吸引人的颜色、质地、气味、声音和味道。在本研究中,纺织工程和服装设计专业的学生和专家(N = 54)对基于初步研究结果选择的四组6种织物样品(感官评估者)进行了评估。每组织物在四种感官模式(味觉除外)中的一种进行评估。两种语义差异被用来评估每种感官形态:颜色的吸引力/不吸引力和无聊/有趣,质地的不敏感/敏感,声音的令人不安/平静,气味的廉价/豪华。我们发现在六种不同颜色的面料中,粉红色的面料是最吸引人的。在呈现的六种纹理中,针织罗纹纹理被发现是最吸引人的触觉。柠檬精油的气味被认为是六种气味中最具吸引力的,绒面革的摩擦声被认为是六种织物摩擦声中最具吸引力的。聚类分析表明,6种织物样品的气味和颜色吸引力差异很大,几乎每个样品都被认为是独特的,而不同样品的纹理和声音吸引力差异较小,样品仅分为两组。这表明,某些感官评估者/模式对织物吸引力的辨别可能比其他感官评估者/模式更好。本研究结果将有助于进一步研究不同感官模式在织物感知和服装偏好中的整合。
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引用次数: 0
Statistical Study on the Effect of Yarn Fineness on Heat and Mass Transfer Properties of Single Jersey Knitted Fabrics 纱线细度对针织物传热传质性能影响的统计研究
4区 工程技术 Q3 MATERIALS SCIENCE, TEXTILES Pub Date : 2023-10-17 DOI: 10.2478/ftee-2023-0040
Sinem Gunesoglu, Esin Babalik
Abstract Heat and mass transfer properties of textile fabrics determine thermal comfort. This paper introduces a statistical study on the contribution of yarn fineness to the heat and mass transfer properties of single jersey cotton and polyester fabrics through relevant measurements. It is observed that yarn fineness affects those properties at different levels in differing fiber types.
纺织织物的传热传质性能决定了其热舒适性。本文通过相关测量,统计研究了纱线细度对针织棉和涤纶织物的传热传质性能的贡献。观察到不同纤维类型的纱线细度对这些性能的影响程度不同。
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引用次数: 0
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Fibres & Textiles in Eastern Europe
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