以聚己二酸-1，4-丁二醇酯二醇（PBA）、异佛尔酮二异氰酸酯（IPDI）为单体，全氟烷基乙基丙烯酸酯和乙烯基三乙氧基硅烷为改性剂，2，2-双羟甲基丙酸（DMPA）为乳化剂，将单体与不同质量分数、质量比为1：1的2种改性剂共聚，并利用三羟甲基丙烷（TMP）作为外交联剂，制备了一系列聚合物乳液。对乳液的粒径、储存稳定性和黏度等进行了测定，对胶膜的耐水性、耐热性、硬度和耐化学品性、断裂面和表面的微观形貌进行了表征。结果表明，DMPA质量分数高于3.3%时，乳液外观、储存稳定性良好；TMP的加入可明显提高胶膜硬度；含氟与含硅基团的引入明显提高了胶膜的耐水性和耐热性，当2种改性剂质量分数为9%、质量比为1：1时，热分解温度较改性前提高了20℃，吸水率为7.7%。

A series of polymer emulsions are prepared by using polyadipate-1,4-butanediol glycol (PBA) and isophorone diisocyanate (IPDI) as monomers,perfluoroalkylethyl acrylate and vinyltriethoxysilane as modifiers,2,2-bismethylolpropionic acid as an emulsifier,and trimethylolpropane (TMP) as a diplomatic agent,through copolymerizing two monomers with two modifiers at different mass fractions and a fixed mass ratio of 1:1.The particle size,storage stability and viscosity of the emulsion are measured,and the water resistance,heat resistance,hardness,and chemical resistance of adhesive film,and the micro-morphology of the fracture facet and surface are characterized.Results show that the appearance and storage stability of the emulsion are good when the DMPA content is higher than 3.3%.The addition of TMP can improve significantly the hardness of the adhesive film,with the maximum hardness being 50.3 HA,while the addition of fluorine- and silicon-containing groups can increase obviously the water resistance and heat resistance.As total mass fraction of two modifiers is 9% and the mass ratio between them is 1:1,thermal decomposition temperature of the film is 20℃ higher than that of the film before modification,and the water absorption reaches 7.7%.

左一杰(1995-),女,硕士研究生,主要从事化学工程研究,5120130088@bipt.edu.cn