Microwave assisted recycle of waste PET and preparation of polyester used in powder coating

SONG Hongwei; XU Zhongbin; ZHENG Suxia

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Microwave assisted recycle of waste PET and preparation of polyester used in powder coating

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- Microwave assisted recycle of waste PET and preparation of polyester used in powder coating
- CIESC Journal Issue 8, Pages: 2141-2148(2008)
- 作者机构：
  
  1. 浙江大学化工机械研究所,浙江,杭州,310027
  2. 高分子合成与功能构造教育部重点实验室,浙江,杭州,310027
  3. 杭州职业技术学院,浙江,杭州,310018
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Online First：05 August 2008，
  
  Published：05 August 2008
- 稿件说明：
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SONG Hongwei, XU Zhongbin, ZHENG Suxia. Microwave assisted recycle of waste PET and preparation of polyester used in powder coating[J]. CIESC Journal, 2008, (8): 2141-2148.
DOI：

SONG Hongwei, XU Zhongbin, ZHENG Suxia. Microwave assisted recycle of waste PET and preparation of polyester used in powder coating[J]. CIESC Journal, 2008, (8): 2141-2148. DOI：

摘要

在微波辅助下，采用新戊二醇（NPG）对废弃聚对苯二甲酸乙二醇酯（PET）进行多元醇解，产物经酯化后，制备了能用于聚酯-环氧粉末涂料的聚酯树脂。通过研究各主要因素对醇解反应和酯化反应的影响，实现了反应条件的最优化组合。同时研究了酯化过程中引入的均苯四酸二酐的作用。

Abstract

The waste poly(ethylene terephthalate) (PET) could be glycolized with neopentyl glycol (NPG) in several minutes with microwave assistance.The glycolized product

an oligomer

was esterified with a certain amount of hexanedioic acid and 1

5-benzene-tetracarboxylic acid dianhydride.The esterified products could be used as the polyester for polyester-epoxy powder coatings.The influences of the main factors

such as the amount of NPG

the power of microwave

reaction time

on the glycolysis and esterification were studied and optimized.The effects of 1

5-benzenetetracarboxylic acid dianhydride introduced during the esterification process were also investigated.

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