来自消费后织废弃物的短纤维复合材料及其在包装应用中的适用性
Alva Hjelm1, Mikael Skrifvars1, Pooria Khalili1
1Swedish Centre for Resource Recovery, Faculty of Textiles, Engineering and Business, University of Borås, SE-50190, Borås, Sweden.
Heliyon
|February 19, 2025
概括
在这项研究中,从废弃的粘合纤维和粘合纤维中开发了新的织复合材料. 这些可持续材料对包装具有前景,为面对织废物挑战提供解决方案.
科学领域:
- 材料科学 材料科学 材料科学
- 可持续工程 可持续工程
- 织品回收利用 织品回收利用
背景情况:
- 每年的织废物产生量很大,混合纤维带来了重大回收挑战.
- 目前用于消费后织品的回收方法往往导致回收或垃圾填埋处置.
- 对于有效地重新利用混合纤维织废弃物的选择有限.
研究的目的:
- 从废弃的粘性织品和热塑性粘合纤维中创建增值复合材料.
- 研究纤维类型,消费者使用,染料和弹性对复合材料性能的影响.
- 评估开发的织复合材料的机械,热和包装适用性.
主要方法:
- 空气覆盖的无布板是由废旧的粘合纤维和粘合纤维制成的.
- 采用消费前和消费后的织物生产了十个复合样本,其中一些用NaOH处理.
- 进行了机械测试 (拉力,曲,冲击),热分析 (TGA) 和化学分析 (FTIR).
- 评估了包装的适用性,并进行了试点规模的生产.
主要成果:
- 从消费后的织废物中成功制造出复合材料.
- 该研究确定了影响复合材料性能的关键因素,包括纤维来源和组成.
- 评估表明,包装应用的机械和热性能充满希望.
- 试点规模的生产证明了商业用途升级的可行性.
结论:
- 废弃的粘性织品可以转化为功能复合材料.
- 开发的复合材料为包装提供了一个可持续的替代品,将垃圾从垃圾填埋场转移.
- 该工艺显示出工业应用的潜力,为织品的循环经济做出贡献.
相关概念视频
Types of Step-Growth Polymers: Polyesters
2.2K
The introduction of polyesters has brought major development to the textile industry. The wrinkle-free behavior of polyester blends has eliminated the need for starching and ironing clothes.
Polyesters are commonly prepared from terephthalic acid and ethylene glycol; the crude product is known as poly(ethylene terephthalate) or PET. However, polyesters are synthesized industrially by transesterification of dimethyl terephthalate with ethylene glycol at 150 °C. The two reactants and the...
Polyesters are commonly prepared from terephthalic acid and ethylene glycol; the crude product is known as poly(ethylene terephthalate) or PET. However, polyesters are synthesized industrially by transesterification of dimethyl terephthalate with ethylene glycol at 150 °C. The two reactants and the...
2.2K
Fiber Reinforced Concrete
67
Fiber-reinforced concrete significantly enhances the structural and nonstructural properties of traditional concrete by incorporating fibers like steel, glass, and polymers. These fibers, varying from natural ones such as sisal and cellulose to manufactured ones like polypropylene and Kevlar, are mixed into hydraulic cement with aggregates. Steel fibers, often preferred for their robustness, contribute to improved ductility, toughness, and post-cracking performance. The concrete is classified...
67


