由对苯二甲酸酯制备Gemini表面活性剂
关键字：对苯二甲酸乙二醇酯;PET;Gemini表面活性剂;表面张力
Preparation of phthalate esters by the Gemini Surfactant
Abstract: An experimental study of the major industrial preparation of Gemini surfactant . Separating the PET from the alcoholysis of a starting material , the reaction of maleic anhydride with an alcohol , the product is further occurrence of the final product produced by the sulfonation of p-toluenesulfonic acid ester as the starting material II . These two materials for esterification , which is one kind of product sulfonate Gemini surfactant. This study investigated the glycolysis of waste polyester fiber optimum conditions , analysis of the reaction temperature , reaction time, catalyst content and process of the alcohol solution of maleic anhydride with an alcohol compound occurs first esterification reaction of maleic acid monoester , and then the resulting ester with NaHSO3 optimum reaction conditions , through repeated validation of the reactions to obtain the optimum reaction conditions for the esterification single example: maleic anhydride, n-octanol and best 05 is a 00:1 molar ratio at the reaction temperature of about 70oC to obtain a monoesterified product at a yield of about 95% of the ( n- octyl maleic acid monoester ) .
Key Words: bis（2-hydroxyethylene terephthalate）;PET; Gemini surfactant; surface tension
毕业论文目录
1.绪论 1
1.1聚酯纤文的现状及在国内的发展趋势 1
1.1.1聚酯纤文的概述 1
1.1.2 PET的概述 2
1.1.3 PET 在国内外的发展形势 3
1.2废弃聚酯的回收利用 3
1.2.1 废弃 PET 的来源 3
1.2.2物理回收利用 3
1.2.3化学回收利用 3
1.3 Gemini 型表面活性剂的研究背景 5
1.4．本课题的研究目的和意义 8
1.4.1回收 PET 的意义 8
1.4.2 Gemini 型表面活性剂的应用 8
1.4.3 双子表面活性剂的特性 9
1.5 本课题的研究内容 10
2 实验原理和方法 11
2.1 实验原料及仪器 11
2.1.1 实验原料 11
2.1.2 实验仪器 11
2.2 实验原理和方法 11
2.2.1 实验原理 11
2.3 实验方法 12
2.3.1 PET 降解 12
2.3.2 单链表面活性剂的制备 12
2.3.3 Gemini 的制备 13
2.4 分析方法 13
2.4.1 PET的醇解率 13
2.4.2 磺化反应的磺化率 13
2.4.3 表面活性的测定 13
2.5 实验进程 13
2.5.1 马来酸酐的酯化反应I 13
2.5.2 磺化反应 13
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