Recent Advances in the Chemical Recycling of Polyamide for a Sustainable Circular Economy

IF 3.9 3区工程技术 Q2 ENGINEERING, CHEMICAL

Industrial & Engineering Chemistry Research Pub Date : 2025-01-27 DOI:10.1021/acs.iecr.4c0471110.1021/acs.iecr.4c04711

Yirong Feng, Xiaoru Quan, Qingya Wang, Yanxin Zhang, Chilong Liu, Xin Yuan, Shuangfei Zhao, Jiming Yang, Wei He* and Kai Guo*,

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Abstract

Polyamide (PA) constitutes a class of highly versatile polymers that are employed in the fabrication of fibers, plastics, and membranes. However, the high consumption of the commodity PA has posed a considerable and urgent waste management challenge. As the concept of a circular economy is deeply rooted, there have been numerous circular solutions for PA waste recycling. Chemical recycling processes are powerful tools for managing the end-of-life of PA, obtaining constituent monomers, or other value-added chemical products. To achieve a high depolymerization efficiency as well as monomer selectivity, several chemical recycling processes have been demonstrated. Accordingly, this review summarizes recent advances in the chemical recycling and upcycling of PA (especially PA 6 and PA 66). We highlight three research topics: catalyst development, decomposing agent’s interaction, and process intensification. We expect to provide inspiration for PA depolymerization at different scales, which will contribute to the sustainability of PA throughout its entire lifecycle.

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面向可持续循环经济的聚酰胺化学回收研究进展

聚酰胺（PA）是一类高度通用的聚合物，用于制造纤维、塑料和膜。然而，商品PA的高消费对废物管理提出了相当大和紧迫的挑战。随着循环经济理念的深入人心，已经出现了许多PA废物回收的循环解决方案。化学回收过程是管理寿命结束的PA，获得组成单体或其他增值化学产品的有力工具。为了获得较高的解聚效率和单体选择性，已经证明了几种化学回收工艺。因此，本文综述了近年来PA（特别是pa6和pa66）的化学回收和升级利用的研究进展。我们重点研究了催化剂开发、分解剂相互作用和过程强化三个方面。我们希望为不同规模的聚苯乙烯解聚提供灵感，这将有助于聚苯乙烯在整个生命周期中的可持续性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Industrial & Engineering Chemistry Research 工程技术-工程：化工

CiteScore

7.40

自引率

7.10%

发文量

1467

审稿时长

2.8 months

期刊介绍： ndustrial & Engineering Chemistry, with variations in title and format, has been published since 1909 by the American Chemical Society. Industrial & Engineering Chemistry Research is a weekly publication that reports industrial and academic research in the broad fields of applied chemistry and chemical engineering with special focus on fundamentals, processes, and products.