| 微波辅助回收废聚酯制备粉末涂料用聚酯树脂 |
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| 引用本文： | 宋红玮,许忠斌,郑素霞.微波辅助回收废聚酯制备粉末涂料用聚酯树脂[J].化工学报,2008,59(8):2141-2148. |
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| 作者姓名： | 宋红玮 许忠斌 郑素霞 |
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| 作者单位： | 浙江大学化工机械研究所，浙江 杭州 310027;高分子合成与功能构造教育部重点实验室，浙江 杭州 310027;杭州职业技术学院，浙江 杭州 310018 ; |
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| 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。
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| 关 键 词： | 微波 回收 聚对苯二甲酸乙二醇酯 新戊二醇 二醇解 粉末涂料 酯化 |
| 收稿时间： | 2008-1-31 |
| 修稿时间： | 2008-4-5
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Microwave assisted recycle of waste PET and preparation of polyester used in powder coating |
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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].Journal of Chemical Industry and Engineering(China),2008,59(8):2141-2148. |
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| Authors: | SONG Hongwei XU Zhongbin ZHENG Suxia |
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| 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 1,2,4,5-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 1,2,4,5-benzenetetracarboxylic acid dianhydride introduced during the esterification process were also investigated. |
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| Keywords: | microwave recycle PET NPG glycolysis powder coating esterification |
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