热固性树脂及其复合材料的升级回收新方法-中国材料进展

文章信息/Info

作者:: 刘雪辉; 徐世美; 王玉忠; （四川大学化学学院环保型高分子材料国家地方联合工程实验室教育部环境与火安全高分子材料协同创新中心，四川成都610064）

Author(s):: LIU Xuehui; XU Shimei; WANG Yuzhong; (The Collaborative Innovation Center for Eco-Friendly and Fire-Safety Polymeric Materials (MoE), National Engineering Laboratory of Eco-Friendly Polymeric Materials (Sichuan), College of Chemistry, Sichuan University, Chengdu 610064, China)

Keywords:: thermosetting resin; upcycling; functional materials; physical recycling; chemical degradation

摘要:: 作为一种再生资源，废旧热固性树脂及其复合材料的回收利用成为研究者关注的热点。由于回收难度大，目前其处理方式主要以填埋和焚烧为主，造成了严重的环境污染和资源浪费。在现有的热固性树脂及其复合材料的回收方法中，物理回收简单高效，易于工业化推广，但回收产品性能较差且附加值较低；化学回收能够从废弃树脂中回收单体、低聚物或者增值化学品，具有方法灵活、发展潜力大等优势，但存在反应条件苛刻、产物复杂、后处理繁琐及再生产品性能差等问题。因此，提出并建立新的热固性树脂及其复合材料的升级回收策略与方法具有十分重要的意义。综述了热固性树脂及其复合材料回收现状，在此基础上，重点介绍了作者团队近年来在热固性树脂升级回收领域的新进展，并对该领域未来的发展做出了展望。

Abstract:: Waste thermosetting resin and its composites, as an unconventional carbon resource, display great potential for various applications but have not been fully exploited. Landfill and incineration are the mainstream methods for wastes treatment, which have caused serious environmental pollution and resources waste. At present, among the technologies for recycling thermosetting resin and its composites, physical recycling is simple and efficient, as well as easy to promote industrialization. However, the deteriorating performance and low value of recycled products limit its application. Chemical recycling is regarded as a versatile, flexible and promising recycling method since monomers, oligmers or value-added chemicals can be obtained from wastes, but the main disadvantages include harsh reaction conditions, complex post-treatment processes and low performance/value of recycled products. Therefore, it is of great significance to propose and establish new strategies for upcycling of thermosetting resin and its composites, and it is also very challenging and urgent to realize upcycling. This review introduces the recent progress on the recycling of thermosetting resin and its composites, focusing on our recent work on the upcycling of thermosetting resin, and makes a prospect for upcycling of the wastes.