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采用自制的固体酸催化剂S2 O2－8/ZrO2-SiO2合成反应性乳化剂马来酸单十六醇酯丙基磺酸钠,比较S2 O2－8/ZrO2-SiO2、乙酸钠和对甲苯磺酸三者的催化效果,探究其最佳用量,将制得的反应性乳化剂应用到苯丙微乳液聚合中,与传统乳化剂十二烷基硫酸钠和反应性乳化剂 DNS-86进行了性能对比.结果表明,固体酸催化剂S2 O2－8/ZrO2-SiO2的催化效果最好,其最佳用量为0．6％(质量分数).制得的反应性乳化剂的乳化能力优于十二烷基硫酸钠和DNS-86,并且可以有效降低表面张力,将其应用于微乳液聚合,最佳用量为4．5％(质量分数),所得乳液具有较大的粒径和较高的电解质稳定性.对原纸进行施胶,施胶度由5 s 提高到78 s,其应用领域可拓展到纺织、涂料和汽车等行业.

A novel reactive emulsifier of sodium maleic hemihexadecylester propylsulfonate (SMHP)was syn-thesized via catalysis action of homemade solid catalyst S2 O2-8 /ZrO2-SiO2 .The catalytic effect of S2 O2-8 /ZrO2-SiO2 was compared with that of sodium ethanoate and p-toluenesulfonic acid.The resultant reactive emulsifier was applied to styrene-acrylic microemulsion polymerization,and compared the emulsifying ability with the tra-ditional emulsifier sodium dodecyl sulfate (SDS)and another reactive emulsifier ammonium sulfate allyloxy nonyphenoxy poly(ethyleneoxy)(10)ether (DNS-86).The results show that the solid acid catalyst S2 O2-8 /ZrO2-SiO2 has the best catalytic effect,and its proper content is 0.6wt%.The resultant reactive emulsifier has a bet-ter emulsifying ability than SDS and DNS-86,it also can lower the surface tension effectively,and its optimum content was 4.5wt% in microemulsion polymerization.The emulsion emulsified by the prepared reactive emulsi-fier has a larger size of emulsion particles and higher electrolyte stability.The raw paper was sized by such sur-face sizing containing SMHP,its degree of sizing was improved from 5 to 78 s,and the application fields can be extended to textile,coating,automotive and other industries.