聚羟基丁酸酯
废物管理
聚乳酸
塑料工业
塑料废料
聚酯纤维
生物降解
化学工业
生物塑料
生物可分解塑胶
材料科学
催化作用
可生物降解聚合物
聚合物
有机化学
化学
工程类
复合材料
细菌
生物
遗传学
作者
Elias Féghali,Lara Tauk,Pablo Ortiz,Karolien Vanbroekhoven,Walter Eevers
标识
DOI:10.1016/j.polymdegradstab.2020.109241
摘要
The widespread utilization of plastics results in millions of tons of waste plastics being generated every year. During the last decade, converting waste plastics to valuable resources has been a primary objective for researchers in academia and industry. Nonetheless, most of the plastic recycling methods still rely on mechanical processes that are limited to relatively pure polymers; these mechanical processes generate end-products with lower thermo-mechanical properties. Therefore, tertiary recycling or chemical recycling methods are currently gaining more interest, mainly with conventional petroleum-based polymers. Recently some examples of catalytic chemical recycling have been described on biodegradable plastics, especially thermoplastics. Indeed, the recycling of biodegradable plastics helps to close the loop towards a lower environmental impact in the life cycle assessment of the material. The purpose of this review is to present the latest catalytic chemical recycling methods that were developed as solutions to the end of life management of biodegradable polyesters, with a focus on polylactic acid (PLA) and polyhydroxybutyrate (PHB).
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