[1]高彦山,唐勇.聚烯烃降解转化与循环利用[J].中国材料进展,2022,41(01):001-6.[doi:10.7502/j.issn.1674-3962.202110004]
 GAO Yanshan,TANG Yong.Chemical Recycling and Upcycling of Polyolefins[J].MATERIALS CHINA,2022,41(01):001-6.[doi:10.7502/j.issn.1674-3962.202110004]
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聚烯烃降解转化与循环利用()
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中国材料进展[ISSN:1674-3962/CN:61-1473/TG]

卷:
41
期数:
2022年第01期
页码:
001-6
栏目:
出版日期:
2022-01-30

文章信息/Info

Title:
Chemical Recycling and Upcycling of Polyolefins
文章编号:
1674-3962(2022)01-0001-06
作者:
高彦山唐勇
(中国科学院上海有机化学研究所,上海 200032)
Author(s):
GAO Yanshan TANG Yong
(Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032, China)
关键词:
聚乙烯聚丙烯化学回收闭环循环利用升级循环降解
Keywords:
polyethylene polypropylene chemical recycling closedloop recycling upcycling degradation
分类号:
TQ325.1; O632.12
DOI:
10.7502/j.issn.1674-3962.202110004
文献标志码:
A
摘要:
聚烯烃(主要是聚乙烯和聚丙烯)是应用最广泛的有机高分子材料之一。其广泛使用也带来了日益严重的环境污染问题,以及一次性使用和极低回收利用比例导致的巨大资源消耗,为人类的可持续发展带来严峻挑战。中国所面临的挑战尤其严峻。与物理/机械回收相比,聚烯烃通过化学方法降解转化具备独特的优势。但是由于聚烯烃基本由C—H和C—C键组成,具有高化学惰性,很难通过化学转化方法实现高效、高选择性的降解和回收利用。应对这一挑战是一个长期的、需要社会各个领域广泛参与的过程。围绕这一挑战,全世界的相关研究者在过去几年里取得了一些重要进展和突破。将根据聚烯烃降解转化或升级循环反应的类型,重点针对催化反应产物、催化效率、催化选择性、反映规模及催化对杂质容忍性等方面进行介绍,并在最后对聚烯烃化学方法降解回收进行展望。
Abstract:
Polyolefins, mainly polyethylene and polypropylene, are one of the most widely used organic polymers. However, its widespread applications, mostly singleuse, and low recycling ratio have caused severe environment pollution problems and the draining of nonsustainable petrochemical resources. The issues are particularly challenging in China. In tackling the challenge, polyolefin chemical recycling has unique advantages over physical/mechanical recycling. However, the polyolefins simple C—H and C—C single bond compositions make it hard to deconstruct polymer with reasonable efficiency and selectivity. Moreover, the lack of C—H and C—C bond activation/transformation methodologies also limits the possible solutions. This could be a longtime effort and needs widespread participation from all aspects of the society. It has become a topic of intense interest and focus for chemists around the world and many new methods emerged in the last few years. This review will briefly introduce the progress, mostly in the last few years, in this field based on the chemical reaction types. The introduction will focus on reaction products, catalytic efficiency, catalytic selectivity, scalability, and impurity tolerance, etc. Then there will be an outlook into the future of polyolefin chemical recycling.

备注/Memo

备注/Memo:
收稿日期:2021-10-05 修回日期:2021-11-09第一作者:高彦山,男,1985年生,研究员通讯作者:高彦山,男,1985年生,研究员,博士生导师,Email:gaoyanshan@sioc.ac.cn 唐勇,男,1964年生,中国科学院院士,博士生导师,Email:tangy@sioc.ac.cn
更新日期/Last Update: 2021-12-31