Chlorinated plastics are part of the everyday lives of consumers and producers alike. They can be found in buildings, automobiles, fashion, packaging and many other places. This prevalence makes them a considerable part of the plastic waste crisis. Interest in ‘upcycling’ (as opposed to recycling) has grown recently to augment the possibilities of managing plastic waste. The advances made in plastic upcycling have focused on polyethylene, polypropylene, poly(ethylene terephthalate) and polystyrene while chlorinated plastics, chiefly poly(vinyl chloride), have received much less attention. The release of chlorine-containing molecules during treatment of chlorinated plastic greatly complicates cross-method upcycling, or even the treatment of plastic mixes containing chlorinated plastics. This review presents a case for extracting value from chlorinated plastics by highlighting appealing upcycling products made owing to, or despite, the CCl bond via depolymerization, carbonization and modification. © 2024 Society of Industrial Chemistry.

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氯化塑料为升级改造提供了独特的机遇和挑战

氯化塑料是消费者和生产商日常生活的一部分。它们可以在建筑、汽车、时装、包装和许多其他地方找到。这种普遍现象使它们成为塑料垃圾危机的重要组成部分。最近，人们对“升级改造”（而不是回收利用）的兴趣日益浓厚，以增加管理塑料废物的可能性。塑料升级回收方面取得的进展主要集中在聚乙烯、聚丙烯、聚对苯二甲酸乙二醇酯和聚苯乙烯，而氯化塑料（主要是聚氯乙烯）受到的关注要少得多。氯化塑料处理过程中含氯分子的释放使跨方法升级改造、甚至含有氯化塑料的塑料混合物的处理变得非常复杂。这篇综述提出了一个从氯化塑料中提取价值的案例，重点介绍了由于或尽管存在 C - Cl 键，通过解聚、碳化和改性而生产的有吸引力的升级再造产品。 © 2024 工业化学学会。