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摘要环氧树脂拥有优良的物理机械性能、电绝缘性能、耐化学试剂性能和粘结性能等特点，用环氧树脂改性水性醇酸树脂后制得的树脂同时拥有环氧树脂及醇酸树脂的优异性能。在此实验中通过醇解法合成了水性醇酸树脂和环氧树脂改性水性醇酸树脂，选用亚麻油、三羟基甲基丙烷、偏苯三酸酐当主要原料合成水性醇酸树脂。利用环氧树脂改性多元醇，接着用改性多元醇醇解植物油，再酯化缩聚、羧基化、中和的方法合成环氧改性水性醇酸树脂。研究了环氧树脂种类、配比、投料顺序等因素对树脂性能的影响，得到较佳工艺和配方。以自制水性醇酸树脂和氨基树脂配合制备水性氨基醇酸树脂漆，氨基树脂和醇酸树脂的配比1:3。对制备的水性氨基醇酸树脂烘漆进行了耐酸性、耐碱性、耐盐性等性能的测试，烘漆的各项性能优良。26409
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关键词 环氧改性 水性醇酸树脂 环氧树脂 水性氨基醇酸树脂
毕业论文设计说明书外文摘要
Title Study on preparation and properties of epoxy modified water-borne alkyd resins
Abstract
As properties of water-borne alkyd resin can't meet the requirements due to its low hardness, slow drying rate as well as its solvent resistance, properties of product could be improved using epoxy to modify water-borne alkyd resin according to excellent physical and mechanical, dielectric, chemical resistance and adhesive properties of epoxy. Alkyd resin and epoxy modified water-borne alkyd resins were synthesized by Alcohol solution method. Linseed oil, trimethylolpropane and trimellitic anhydride were used as the main raw material to synthesize the water-borne alkyd resin. Water-based epoxy modified alkyd resin was synthesized through alcoholysising vegetable oil by Polyols. Which modified by epoxy resin, followed by esterification condensation, carboxylation and neutralized by salt. The factors that affect the performance of the resin were studied, such as the types of epoxy resin, the proportion of epoxy resin, the order of epoxy resin. Get better technology and formulations. Waterborne amino-alkyd resin baking coatings was prepared by waterborne alkyd resin and high methyl ether amino resin, ratio between amino resin and waterborne alkyd resin is 1:3. At last the performances of waterborne amino-alkyd resin baking coating such as acid resistance, alkali resistance and salt tolerance were investigated, and these performances are all close to or reach the national standard. The performance of paint is excellent.
Keywords Epoxy modified Waterborne alkyd resin Epoxy resin Waterborne amino alkyd resin
目 次
1 绪论 1
1.1 课题研究背景 1
1.2 醇酸树脂简介 1
1.2.1 醇酸树脂的性能 1
1.2.2 水性化醇酸树脂 2
1.2.3 改性水性醇酸树脂 2
1.2.4 环氧改性水性醇酸树脂 2
1.2.5 环氧改性水性醇酸树脂的发展前景 3
2 水性醇酸树脂的制备 4
2.1 主要实验仪器和试剂 4
2.2 实验部分 4
2.2.1 实验原理 4
2.3 实验流程 6
2.3.1 实验装置图 6