The present invention provides a technique for preparing waterborne alkyd amino paint, the operation steps are as follows: A) preparation of waterborne alkyd resin, 40~50 a lauric acid, phthalic anhydride, 5~10 10~15 three 5~10, trimethylolpropane neopentyl glycol, in reactor stirring, 2 ~5 xylene reflux; heating, cooling, continuous esterification, adding 2~5 three trimellitic anhydride, and then gradually warming, esterification; vacuum xylene, then cooling, adding pH regulator and cosolvent, neutralization; adding distilled water, filtering; B) water-soluble alkyd amino green paint preparation of waterborne alkyd 30~100 4~15 resin, dimethylol propionic acid, 30~150 distilled water, 2~3 butyl ether, neutralizing agent were added in stirred tank, mixing evenly, in the sand mill to grind fineness of less than 20 m, adding a 2~3 neutralizing agent, 20~50 steamed Distilled water, 20~50 portions of amino resin, filtered and packaged to obtain finished products.
【技术实现步骤摘要】
【技术保护点】
一种水性醇酸氨基环保漆的制备工艺,其特征在于:操作步骤如下:A?制备水性醇酸树脂在反应釜中投入40~50份月桂酸、10~15份苯酐、5~10份三羟甲基丙烷、5~10份新戊二醇,开动搅拌,加2~5份二甲苯回流;升温到200~220℃进行酯化,降温至?150~160℃,加入2~5份偏苯三酸酐,再逐渐升温到160~170℃酯化;真空抽二甲苯,然后降温至60~70℃,加入pH调节剂和助溶剂,中和;再加入蒸馏水,分散20~50?min,调整固含量,过滤即得水性醇酸树脂;B?水性醇酸氨基环保漆的制备将30~100份水性醇酸树脂、4~15份二羟甲基丙酸、30~150份蒸馏水、2~3份丁醚、中和剂依次加入搅拌釜中,搅拌混合均匀,在砂磨机中研磨至细度不大于20μm,再加入2~3份中和剂,20~50份蒸馏水,20~50份氨基树脂,搅拌均匀,过滤包装得成品。
【技术特征摘要】
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