聚对苯二甲酸乙二醇酯的降解研究

材料科学论文编号:CL041  论文字数:9896,页数:25

目  录
中文摘要 I
英文摘要 II
目录 III
1. 绪论 1
 1.1  PET概论 1
 1.2  化学降解和回收 3
 1.2.1   水解法 3
 1.2.2   醇解 4
 1.2.3   胺解和氨解 6
 1.2.4   其它化学回收 6
2. 实验部分 8
 2.1  试验目的 8
    2.2  主要试剂和原料 8
 2.3  主要设备仪器 8
 2.4  试验装置 8
 2.5　试验原理 9
 2.6　计算方法 10  
3. 结果与讨论 11
 3.1  浓度对PET降解率和TPA回收率的影响 11
 3.2  温度对PET降解率和TPA回收率的影响 12
    3.3  反应时间对PET降解率和TPA回收率的影响 14
4．总结与展望 17
 4.1  总结 17
 4.2  展望 17
 4.2.1. 国内PET现状 17
 4.2.2. PET回收产业的发展需要社会各方面努力 18
致谢 19
参考文献 20

摘要:  近二十年来，随着PET使用越来越广，PET废料排出量大, 质量轻占据空间大, 自然分解困难。改善环境质量, 实现生产、加工、回收利用的资源良性循环, 已成为当前EPT工业的重要课题。如何有效并且最大化减少损失来回收PET更是重中之重。
 废旧PET聚酯可通过化学解聚来实现其循环利用。本文总结了废旧PET聚酯化学循环利用领域的研究现状, 简单介绍了目前国内外开发的主要化学解聚工艺方法,包括水解法、甲醇解聚法、乙二醇解聚法等, 同时对各种工艺过程的优缺点进行了综合比较。
关键词：PET聚酯； 降解； 生产工艺；化学回收 ；

Abstract:  Over the past two decades, with the PET has become an increasingly widespread use, PET waste output, and the quality of light to occupy a large space, the difficulties of natural decomposition. To improve the quality of the environment, the realization of the production, processing, recycling of resources, a virtuous circle, has now become an important topic EPT industry. How to effectively reduce losses and to maximize the recovery of PET is the most important.      PET can be used by chemical depolymerization to achieve its recycling. This paper summarizes the Chemical Waste recycled PET polyester research in the field of the status quo, both at home and abroad briefly introduced the development of the main chemical depolymerization process, including hydrolysis, methanol depolymerization method, such as ethylene glycol depolymerization method, at the same time on the the advantages and disadvantages of the process of a comprehensive comparison
Keywords: PET polyester; degradation; production process; chemical recycling