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以丙烯酸酯类单体为主要原料、以阴离子型乳化剂(F-20)和反应型非离子型乳化剂(X-03)为阴/非离子型复合乳化剂,采用预乳化半连续种子乳液聚合法合成了核/壳型丙烯酸酯微乳液。研究结果表明:当m(F-20)∶m(X-03)=3∶1、m(釜底乳化剂)∶m(预乳化液中乳化剂)=3∶1、m(核层中乳化剂)∶m(壳层中乳化剂)=1∶1、w(复合乳化剂)=9.0%、w(引发剂)=0.20%、固含量为25%和w(AA)=6%～8%时,相应核/壳型微乳液的综合性能良好,其平均粒径为29.1 nm,PDI(粒径分布指数)为0.223;将该乳液作为皮革填充黏合剂时,其填充性能优于单层微乳液,并且接近于国外同类产品。
Using acrylate monomer as the main raw material, anionic emulsifier (F-20) and reactive nonionic emulsifier (X-03) as anionic / nonionic emulsifier, preemulsified semi-continuous seed emulsion Polymerization Synthesis of core / shell acrylic microemulsion. The results show that when m (F-20): m (X-03) = 3:1, m (bottom emulsifier): m (Emulsifier): m (emulsifier in the shell) = 1: 1 w: composite emulsifier = 9.0% w initiator = 0.20% solids content 25% and w AA = 6% At 8%, the core / shell microemulsion showed good overall performance with an average particle size of 29.1 nm and a PDI (particle size distribution index) of 0.223. When the emulsion was used as a leather-filled binder, its filling performance was better than that of single Layer microemulsion, and close to similar foreign products.