废旧涤纶的醇碱混合解聚的探究

doi:10.16039/j.cnki.cn22-1249.2019.03.020

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摘要

为了解决废旧涤纶对环境的污染问题，我们使用了醇水混合解聚代替传统的水解法，通过实验探讨了实验温度、醇水比、反应时间、碱的浓度、溶剂体积对废旧涤纶解聚的影响。实验结果表明选取涤纶质量2.5g的条件下，醇水混合降解温度在75 ~78℃之间，醇水比7:1，反应时间2h，碱的质量分数为18% ，溶剂体积为40mL，此时解聚效果达到最佳。

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	王凤祥
	秦瑞程
	吴方仁
	吴家琛
	刘凯希
	魏红

关键词: 废旧涤纶醇水解聚最佳条件

Abstract:

In order to solve the problem of environmental pollution of waste polyethylene terephthalate (PET) caused by waste polyester, we used the mixed depolymerization of alcohol and water instead of the traditional hydrolysis method.The effects of temperature, ratio of alcohol to water, reaction time, concentration of alkali and volume of solvent on depolymerization of waste polyester were investigated by orthogonal experiment.Experimental results show that Select polyester quality 2.5 grams of the condition the degradation of mixed alcohol water temperature between 75 ℃ to 78 ℃, 7:1 alcohol water ratio, reaction time in about two hours, the mass fraction of alkali is 16%, solvent volume of 40 ml, as depolymerizing effect is best.

Key words: waste polyethylene terephthalate mixed malcohol and water depolymerization Selection of best condition

出版日期: 2019-03-25 发布日期: 2019-03-25 整期出版日期: 2019-03-25

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引用本文:

王凤祥, 秦瑞程, 吴方仁, 吴家琛, 刘凯希, 魏红. 废旧涤纶的醇碱混合解聚的探究 [J]. 吉林化工学院学报, 2019, 36(3): 97-100.
WANG Fengxiang, QIN Ruicheng, WU Fangren, WU Jiachen, LIU Kaixi, WEI Hong. Study on the Mixed Depolymerization of Waste Polyester Alkyl Base . Journal of Jilin Institute of Chemical Technology, 2019, 36(3): 97-100.

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http://xuebao.jlict.edu.cn/CN/10.16039/j.cnki.cn22-1249.2019.03.020 或 http://xuebao.jlict.edu.cn/CN/Y2019/V36/I3/97

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