3961 Abstract
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Research Progress of Waste Nylon Recycling Technology(PDF)

MATERIALS CHINA[ISSN:1674-3962/CN:61-1473/TG]

Issue:
2022年第01期
Page:
14-21
Research Field:
Publishing date:

Info

Title:
Research Progress of Waste Nylon Recycling Technology
Author(s):
XU Qianhui1 HU Hongmei1 ZHU Ruishu1 SUN Lina1 YU Jianyong12 WANG Xueli2
(1.College of Textiles, Donghua University, Shanghai 201620, China) (2.Innovation Center for Textile Science and Technology, Donghua University, Shanghai 201620, China)
Keywords:
nylon recycling technology dissolution/reprecipitation hydrolysis ionic liquid
CLC:

PACS:
TQ342+.1;X705
DOI:
10.7502/j.issn.1674-3962.202108023
DocumentCode:

Abstract:
With the rapid development of science and technology, sustainable development has become the consensus of all countries in the world. Reasonable and efficient research and development of renewable resources has become the main research direction and hotspot at home and abroad. With the increasing consumption of nylon, which plays an important role in synthetic fiber, the recycling of its waste has attracted extensive scholars-attention. This paper reviews the research status of physical recovery and chemical depolymerization of waste nylon materials at home and abroad in recent years. Several main recovery processes are introduced, including dissolution/reprecipitation in physical recovery and hydrolysis, alcoholysis, ammonolysis, ionic liquid depolymerization in chemical recovery. The advantages and disadvantages of these processes are summarized. Finally, the practical application of waste nylon recovery technology in industrial production is discussed, and it is clearly pointed out that green solvent dissolution/reprecipitation technology, ultra (sub) critical fluid depolymerization technology, solid superacid catalytic depolymerization technology and ionic liquid depolymerization technology are the key research directions in the future.

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Last Update: 2021-12-31