Mechanochemical Degradation and Recycling of Synthetic Polymers
Mechanochemical Degradation and Recycling of Synthetic Polymers
复制标题
合成聚合物的机械化学降解与回收
DOI：
10.1002/anie.202300768
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发表时间：
2023
期刊：
影响因子：
--
通讯作者：
Wang, Junpeng
中科院分区：
文献类型：
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作者：
Zhou, Junfeng;Hsu, Tze‐Gang;Wang, Junpeng
由于缺乏回收利用，塑料垃圾不断堆积，导致了严重的环境污染。虽然机械回收可以缓解这个问题，但它不可避免地降低了分子量并削弱了材料的机械性能，并且不适合混合材料。另一方面，化学回收将聚合物分解成单体或小分子成分，从而可以制备出与原始聚合物质量相当的材料，并且可以应用于混合材料。机械化学降解和回收利用机械技术的优势，例如可扩展性和高效能源利用，来实现化学回收。我们总结了合成聚合物机械化学降解和回收的最新进展，包括商业聚合物和那些为更有效的机械化学降解而设计的聚合物。我们还指出了机械化学降解的局限性，并提出了我们对如何缓解循环聚合物经济挑战的看法。
The accumulation of plastic waste, due to lack of recycling, has led to serious environmental pollution. Although mechanical recycling can alleviate this issue, it inevitably reduces the molecular weight and weakens the mechanical properties of materials and is not suitable for mixed materials. Chemical recycling, on the other hand, breaks the polymer into monomers or small‐molecule constituents, allowing for the preparation of materials of quality comparable to that of the virgin polymers and can be applied to mixed materials. Mechanochemical degradation and recycling leverages the advantages of mechanical techniques, such as scalability and efficient energy use, to achieve chemical recycling. We summarize recent progress in mechanochemical degradation and recycling of synthetic polymers, including both commercial polymers and those designed for more efficient mechanochemical degradation. We also point out the limitations of mechanochemical degradation and present our perspectives on how the challenges can be mitigated for a circular polymer economy.