Untangling the chemical complexity of plastics to improve life cycle outcomes

IF 79.8 1区 材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY Nature Reviews Materials Pub Date : 2024-08-13 DOI:10.1038/s41578-024-00705-x
Kara Lavender Law, Margaret J. Sobkowicz, Michael P. Shaver, Mark E. Hahn
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Abstract

A diversity of chemicals are intentionally added to plastics to enhance their properties and aid in manufacture. Yet the accumulated chemical composition of these materials is essentially unknown even to those within the supply chain, let alone to consumers or recyclers. Recent legislated and voluntary commitments to increase recycled content in plastic products highlight the practical challenges wrought by these chemical mixtures, amid growing public concern about the impacts of plastic-associated chemicals on environmental and human health. In this Perspective, we offer guidance for plastics manufacturers to collaborate across sectors and critically assess their use of added chemicals. The ultimate goal is to use fewer and better additives to promote a circular plastics economy with minimal risk to humans and the environment. Additives are essential to the diverse use of plastics, yet pose risks to health and recycling quality. Collaboration across supply chains, disclosure of composition and risks, and improved additive design can enable more sustainable plastics.

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解开塑料化学的复杂性,改善生命周期结果
人们有意在塑料中添加各种化学物质,以增强其性能并帮助生产。然而,即使是供应链上的企业,也基本上不知道这些材料累积的化学成分,更不用说消费者或回收商了。在公众日益关注塑料相关化学物质对环境和人类健康影响的同时,近期关于增加塑料产品中可回收成分的立法承诺和自愿承诺也凸显了这些化学混合物带来的实际挑战。在本《视角》中,我们将指导塑料制造商开展跨行业合作,并严格评估其对添加化学品的使用。最终目标是使用更少、更好的添加剂,促进塑料循环经济的发展,将对人类和环境造成的风险降至最低。
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来源期刊
Nature Reviews Materials
Nature Reviews Materials Materials Science-Biomaterials
CiteScore
119.40
自引率
0.40%
发文量
107
期刊介绍: Nature Reviews Materials is an online-only journal that is published weekly. It covers a wide range of scientific disciplines within materials science. The journal includes Reviews, Perspectives, and Comments. Nature Reviews Materials focuses on various aspects of materials science, including the making, measuring, modelling, and manufacturing of materials. It examines the entire process of materials science, from laboratory discovery to the development of functional devices.
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