Hjelm Alva, Skrifvars Mikael, Khalili Pooria
Swedish Centre for Resource Recovery, Faculty of Textiles, Engineering and Business, University of Borås, SE-50190, Borås, Sweden.
Heliyon. 2025 Jan 29;11(3):e42335. doi: 10.1016/j.heliyon.2025.e42335. eCollection 2025 Feb 15.
Large amounts of textile waste are generated annually, and postconsumer blended fiber textiles are particularly challenging to recycle due to difficulties in sorting and limited recycling options, often leading to downcycling or landfilling. This study aimed to create composites from discarded textiles by compressing air-laid nonwoven sheets made from waste viscose and a thermoplastic binder fiber. Ten composite samples, incorporating different types of viscose fibers, were produced using both pre- and postconsumer fabrics to assess the impact of consumer usage, dye presence, and elastane on the composites. A 0.1 wt% NaOH treatment was applied to some postconsumer samples to remove impurities. Mechanical and thermal properties were evaluated using tensile, 3-point bending, impact testing, thermogravimetric analysis, and Fourier transform infrared spectroscopy. The suitability of the composites for packaging applications was also explored, and pilot-scale production demonstrated promising potential for upscaling the process for commercial use.
每年都会产生大量的纺织废料，而消费后的混纺纤维纺织品由于分拣困难和回收选择有限，在回收方面尤其具有挑战性，常常导致降级回收或填埋。本研究旨在通过压缩由废弃粘胶纤维和热塑性粘结纤维制成的气流成网非织造布，从废弃纺织品中制造复合材料。使用消费前和消费后的织物制作了十个包含不同类型粘胶纤维的复合材料样品，以评估消费者使用情况、染料存在情况和氨纶对复合材料的影响。对一些消费后的样品进行了0.1 wt%的氢氧化钠处理以去除杂质。使用拉伸试验、三点弯曲试验、冲击试验、热重分析和傅里叶变换红外光谱对力学和热性能进行了评估。还探讨了复合材料在包装应用中的适用性，中试规模生产表明该工艺扩大规模用于商业用途具有可观的潜力。
