第45卷第3期 2015年3月
涂料工业
PAINT&COATINGS INDUSTRY
乳化剂体系对苯丙乳液平均粒径的影响
柳泉润，仇鹏，范桂利，李明威，厉生权
（中海油能源发展股份有限公司惠州石化分公司，广东惠州516086）
Vol.45No.3 Mar.2015
摘要：设计苯丙乳液配方中的乳化剂体系，讨论了乳化剂的类型和用量、加入方式及其配比等对乳液平均粒径的影响。借助马尔文激光粒度分布仪对乳液平均粒径进行测试，结果表明：乳化剂总用量越多，乳液平均粒径越小：反应型阴离子乳化剂比普通阴离子乳化剂所得乳液平均粒径小；非离子乳化剂中聚氧乙烯基数目越多，乳液平均粒径越小；乳化剂在预乳化液与打底液中的分配比例越小，乳液平均粒径越小；对于阴非离子乳化剂复配体系，阴离子乳化剂用量比例越大，乳液平均粒径越小。
关键词：苯丙乳液；反应型乳化剂：乳化剂复配体系；平均粒径
中图分类号：TQ630.4
文献标识码：A
文章编号：02534312(2015)03-003704
Influence of Emulsifier System on Average Particle SizeofStyrene-AcrylicEmulsion
Liu Quanrun, Qiu Peng, Fan Guili, Li Mingwei, Li Shengquan(CNOOC Energy Technology&ServicesLimited HuizhouPetrochemical
Branch,Huizhou，Guangdong516086,China)
Abstract:Emulsifiers were used in styrene-acrylic emulsion formula.The effects of the dosagetype, adding method and ratio of emulsifiers on the averageparticle size of the styrene-acrylic emulsion were discussed. The prepared emulsions were characterized by laser particle size analyzer. The result showed that the average particle size of emulsion became smaller if satisfying at least one of the following conditions: emulsifier dosage is increased, reactive e-mulsifier rather than conventional emulsifier was used, the number of EO group in nonionic e mulsifier increased, the ratio of pre-emulsified and primer solution in terms of emulsifier de-creased and/or the proportion of anionic emulsifier in synergy of anionic/nonionic emulsifier compositeincreased.
Key Words :styrene-acrylic emulsion; reactive emulsifier; emulsifier composite; average particle size
苯丙乳液除具有丙烯酸酯系聚合物乳液的优点外，还有性价比高、无毒、无味、不燃等特点，其涂膜具有良好的硬度、耐水性、耐碱性及耐擦洗性等，因此在
建筑涂料、金属表面乳胶涂料、木器涂料、防火涂料、纸张粘合剂、胶粘剂和油墨等领域有广泛应用1] 乳胶粒的大小及分布对苯丙乳液的性能及应用有很
作者简介：柳泉润(1977一），男，硕士，主要研究方向为丙烯酸树脂产品的开发。
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