Polymer emulsion interfacial agent for treating building wall and preparation method of polymer emulsion interfacial agent
A polymer emulsion and building technology, applied in polyester coatings, biocide-containing paints, coatings, etc., can solve problems such as poor sealing, poor adhesion, and unusable substrates with smooth surfaces
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[0289] The present invention is described in detail below in conjunction with embodiment
[0290] (1) The specific components and weight percentages of component A are as follows:
[0291]
[0292]
[0293] The modified unsaturated polyester resin is prepared by the following method: 1) maleic anhydride is hydrolyzed to generate maleic acid; 2) dicyclopentadiene is mixed with maleic acid at 110-140°C Addition reaction occurs at the carboxyl group to generate dicyclopentadiene-maleic acid monoester; 3) dicyclopentadiene-maleic acid monoester is esterified as monobasic unsaturated acid and propylene glycol under esterification catalyst Polycondensation reaction to obtain dicyclopentadiene-terminated polyester; 4) dicyclopentadiene-terminated polyester, diluted with methyl methacrylate, to obtain dicyclopentadiene-modified unsaturated polyester resin;
[0294] Wherein step 3) dicyclopentadiene is used as a monobasic unsaturated acid and propylene glycol under the methanesu...
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