CAJ | 학술논문

根据羧酸型阴离子的制备原理，聚氨酯预聚物选用二羟甲基丙酸(DMPA)为亲水扩链剂，与丙烯酸羟乙酯(HEA)反应引入可聚合双键，合成自乳化可聚合的聚氨酯水分散体，并将丙烯酸单体引入到聚氨酯乳液中，得到了具有核-壳结构的聚氨酯-丙烯酸酯复合乳液。将乳液应用到水性木器涂料中进行性能测试。研究了交联单体二羟甲基丙烷(TMP)、n(—NCO)/n(—OH)比值、HEA含量对乳液粒径及木器涂料性能的影响。
근거최산형음리자적제비원리，취안지예취물선용이간갑기병산(DMPA)위친수확련제，여병희산간을지(HEA)반응인입가취합쌍건，합성자유화가취합적취안지수분산체，병장병희산단체인입도취안지유액중，득도료구유핵-각결구적취안지-병희산지복합유액。장유액응용도수성목기도료중진행성능측시。연구료교련단체이간갑기병완(TMP)、n(—NCO)/n(—OH)비치、HEA함량대유액립경급목기도료성능적영향。
According to the anionic carboxylic preparation method, with DMPA as hydrophilic agent, reacted with HEA, the self-emulsifying aqueous polyurethane with polymeric double bond was synthesized. Core-shell polyurethane acrylate emulsions were prepared. The prepared emulsion was applied in waterborne wood paint. The performances of the coatings were tested. The effects of TMP content,n(—NCO)/n(—OH)ratio, HEA content on the particle size and properties of wood coatings were studied.