在处理了2 d之后，PET塑料瓶被降解，其产物对苯二甲酸的产率达到88%，且降解过程中没有产生黏性的副产物（图3）。通过此反应器对PET的降解效率比传统管式操作效率提高了54800倍[14]。降解过程中用到了含U催化剂，但238U元素不同于其他U的同位素（如234U和235U），其占据了U元素总量的99.28%，放射性很低；通过对降解产物进行元素分析发现，降解产物中也并无238U元素残留。该研究团队提出的降解反应无放射性毒害。以上特点说明了此研究方案的可行性，为实现塑料制品在复杂真实场景下的降解提供了可能，为推进塑料降解的实际应用提供了助力。该工作实现了对聚苯乙烯类、聚酯类塑料的降解过程研究，提出了SET、HAT、OAT耦合的降解机理，并实现了公斤级塑料产品的降解，获得了较高产率的单体原料，为深化降解机理研究提供了新的方法，为实现塑料制品的可持续管理以及塑料污染治理提供了有效的方案。
二、PET有哪些应用？
PET塑料在较宽的温度范围内具有优良的物理机械性能，长期使用温度可达120℃，电绝缘性优良，甚至在高温高频下，其电性能仍较好，广泛应用于各领域。
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