Recycling and Chemical Upcycling of Waste Disposable Medical Masks

Hai-ming Chen; Xia Dong; Ying Zhao; Du-jin Wang

doi:10.11777/j.issn1000-3304.2020.20136

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Recycling and Chemical Upcycling of Waste Disposable Medical Masks

更新时间：2021-01-26

- Recycling and Chemical Upcycling of Waste Disposable Medical Masks
- Acta Polymerica Sinica Vol. 51, Issue 12, Pages: 1295-1306(2020)
- 作者机构：
  
  1.中国科学院化学研究所北京分子科学国家研究中心中国科学院工程塑料重点实验室　北京 100190
  2.中国科学院大学　北京 100049
- 作者简介：
- 基金信息：
- DOI：10.11777/j.issn1000-3304.2020.20136
  CLC：
- Published：21 October 2020，
  
  Published Online：11 August 2020，
  
  Received：28 May 2020，
  
  Revised：15 June 2020，
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Hai-ming Chen, Xia Dong, Ying Zhao, Du-jin Wang. Recycling and Chemical Upcycling of Waste Disposable Medical Masks. [J]. Acta Polymerica Sinica 51(12):1295-1306(2020)
DOI：

Hai-ming Chen, Xia Dong, Ying Zhao, Du-jin Wang. Recycling and Chemical Upcycling of Waste Disposable Medical Masks. [J]. Acta Polymerica Sinica 51(12):1295-1306(2020) DOI： 10.11777/j.issn1000-3304.2020.20136.

摘要

自新冠肺炎疫情以来，全球对一次性医用口罩(disposable medical masks

DMMs)等医疗物资的需求不断攀升，根据流行性传染病专家预判，在未来很长一段时间内，通过佩戴口罩阻隔细菌和病毒等将成为生活常态. 如何处理大量废弃DMMs，是全球各个国家和地区面临的重要课题. 本综述从化学升级再造(chemical upcycling)的角度出发，综述和展望了废弃DMMs的主体材料(聚丙烯，PP)回收的现状和未来升级再造的途径，包括机械共混、化学改性、可控降解、物理加工改性等，并分析了各种途径的优劣势，指出将废弃PP通过化学方法有选择性地转换为产品种类单一的相关化学品、燃料和高附加值的相关材料，是实现将废弃DMMs变“废”为“宝”和可持续发展的根本方法.

Abstract

Since the COVID-19 epidemic

the global demand for medical supplies

e.g

disposable medical masks (DMMs)

have been largely increasing. Blocking bacteria and viruses

via

wearing masks

according to the pre-judgment of epidemic infectious disease experts

will be a normal phenomenon within a long future period. Therefore

how to process the large number of waste DMMs properly is becoming an important issue for various countries and regions all over the world. From the view of chemical upcycling

this paper reviews the current status of recycling

and prospects the upcycling of polypropylene (PP)

which is the main component of DMMs. The upcycling methodologies here mainly include mechanical blending

chemical modification

controllable degradation and physical process modification. Both the advantages and disadvantages of these methodologies have been discussed based on the analysis of technological feasibility and economic benefit. On the basis of the formation of public awareness of recycling and treatment of waste DMMs

by exploring the mechanism of decomposition

reconstruction and re-functionalization of PP

developing new selective green catalysts

degradants

in situ

collaborative detection technologies

utilizing the residual value of the existing waste DMMs

etc

. will greatly promote the upcycling of waste DMMs. It is believed that converting waste PP selectively into a single type of chemicals

fuels and high value-added material by chemical ways is the fundamental method to realize the transformation of waste DMMs from “waste” to “treasure” and sustainable development.

关键词

废弃一次性医用口罩聚丙烯回收利用化学升级再造

Keywords

Disposable medical masksPolypropyleneRecyclingChemical upcycling

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