化学品和加工处理对聚织品热力学回收的影响
Zara Standring1, Lisa Macintyre2, Gigi Jiang2
1Institute of Chemical Sciences, School of Engineering and Physical Sciences, Heriot-Watt University, Edinburgh EH14 4AS, UK.
Molecules (Basel, Switzerland)
|July 12, 2025
概括
聚织品回收利用面临着生产化学品带来的挑战. 了解这些化学影响是提高聚回收效率和产品质量的关键.
科学领域:
- 材料科学 材料科学 材料科学
- 化学工程是化学工程的重要组成部分.
- 织工程 织工程 织工程
背景情况:
- 全球织行业每年生产超过1.24亿纤维,聚占主导地位.
- 目前的聚纤维回收率非常低,低于0.1%,突显出一个重要的可持续性差距.
- 包括机械,热力机械和化学在内的聚回收方法是可行的,热力机械提供成本和质量的平衡.
研究的目的:
- 进行首次关于聚生产中使用的化学品及其对织品可回收性影响的学术文献的全面审查.
- 为了确定特定的化学物质如何影响聚在热力学回收过程中的降解或抗性.
- 解决有关化学组合对聚回收结果影响的知识差距.
主要方法:
- 对聚生产化学品的学术研究进行系统的文献综述.
- 对调查织加工化学品与回收过程中的聚降解之间的相互作用的研究进行分析.
- 综合发现,以了解化学物质对热力学回收效率的影响.
主要成果:
- 在聚织品制造中使用的化学品可以在热力学回收过程中阻碍或加速聚的降解.
- 组合化学品对回收性能的协同或对抗作用在很大程度上仍未被描述.
- 现有的研究表明,生产化学品对聚的可回收性有着显著的,但不太了解的影响.
结论:
- 在织生产中标准化和透明地报告化学品的使用对于推动聚回收研究至关重要.
- 减少使用的化学品的多样性和复杂性可以简化回收过程,提高回收聚的质量.
- 需要进一步的研究来阐明化学混合物对聚回收的影响,以便在织行业实现更有效的循环经济战略.
相关概念视频
Types of Step-Growth Polymers: Polyesters
2.3K
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...
2.3K
Polymer Classification: Crystallinity
3.1K
Unlike ionic or small covalent molecules, polymers do not form crystalline solids due to the diffusion limitations of their long-chain structures. However, polymers contain microscopic crystalline domains separated by amorphous domains.
Crystalline domains are the regions where polymer chains are aligned in an orderly manner and held together in proximity by intermolecular forces. For example, chains in the crystalline domains of polyethylene and nylon are bound together by van der Waals...
Crystalline domains are the regions where polymer chains are aligned in an orderly manner and held together in proximity by intermolecular forces. For example, chains in the crystalline domains of polyethylene and nylon are bound together by van der Waals...
3.1K
Polymer Classification: Architecture
3.0K
Polymers are classified as linear or branched on the basis of their chain architecture. The polymer chains in linear polymers have a long chain-like structure with minimal to no branching at all. Even if a polymer features large substituent groups on the monomer, which appear as branches to the skeleton, it is not considered a branched polymer. A branched polymer contains secondary polymer chains that arise from the main polymer chain. The branching occurs when the polymer growth shifts from...
3.0K


