摘要： 以甲苯为溶剂，采用相反转法制备了水性氯化聚丙烯乳液。考察了 10种阳离子表面活性剂和 40种非离子表面活性剂制备阳离子型和非离子型水性乳液时的乳化效果。探讨了乳化温度、乳化时间、表面活性剂用量对乳液粒径及涂层附着力的影响规律，确定了乳液的最佳制备条件。对乳液的稳定性、粒径分布和涂层的硬度、耐溶剂性、接触角及表面能进行了表征。结果表明：最佳阳离子和非离子表面活性剂分别为十六烷基三甲基溴化铵（C16TAB）和辛基酚聚氧乙烯醚（OP-50）。在 OP-50中添加 3%聚醚改性硅氧烷（PMS）可有效提高乳液在聚丙烯（PP）表面的润湿性。2种乳液的最佳乳化温度为 50~60 ℃，乳化时间为 30~60 min，表面活性剂用量为 7%~8%。在此条件下，乳液的粒径为 762~808 nm，稳定性良好，多分散系数为 0. 185~0. 194，所制涂层的附着力为 1~0级，硬度为 H，耐溶剂性良好，表面能均高于常用面漆，可满足应用要求。

关键词: 氯化聚丙烯, 水性乳液, 相反转法, 表面活性剂

Abstract: In this work，waterborne chlorinated polypropylene（CPP） emulsion was prepared by phase inversion method with chlorinated polypropylene and toluene as rawmaterial and solvent. The emulsifying effects of ten kinds of cationic surfactants and 40 kindsof nonionic surfactants were investigated. The impacts of emulsifying temperature，emulsifyingtime，and surfactant dosage on the particle size of the emulsion and the adhesion of the coatingwere revealed，and the optimal preparation conditions of the emulsion were determined. The stability，particle size distribution of emulsion，hardness，solvent resistance，contact angle，and surface energy of coating were characterized. The results showed that the optimal cationic and nonionic surfactants were cetyl trimethyl ammonium bromide（C16TAB） and octylphenol polyoxyethylene ether（OP-50）， respectively. The wettability of the emulsion could beimproved by adding 3% polyether-modified siloxanes（PMS） in OP-50. The optimal emulsification temperature was 50-60 ℃，the emulsification time was 30-60 min，and the surfactant dosage was 7%-8%. Under these conditions，the particle size of the emulsion was 762-808 nm，the stability was good，the polydispersity coefficient was 0. 185-0. 194，the adhesion of the coating was 1-0 level，the hardness was H，and the surface energy was higher than that of the typical topcoat，met the application requirements. 

Key words: chlorinated polypropylene；waterborne emulsion；phase inversion method；surfactant 

中图分类号: 

• TQ637. 81