有机硅及纳米二氧化硅改性聚丙烯酸酯无皂乳液的合成和性能  

Synthesis and Properties of Silicone/Nano-silica Modified Polyacrylate Emulsifier-free Emulsion

作　　者：周建华[1,2] 张琳[1] 陈超[1] 侯小青[1] 

机构地区：[1]陕西科技大学资源与环境学院,陕西西安710021 [2]浙江温州轻工研究院,浙江温州325003

出　　处：《精细化工》2010年第5期480-485,490,共7页Fine Chemicals

基　　金：温州市科技计划项目(H20080012);国家高技术研究发展计划(863计划)项目(2008AA03Z311);陕西省自然科学研究项目(2007E110);陕西省教育厅项目(07JK202)~~

摘　　要：采用无皂乳液聚合技术和溶胶凝胶技术,合成了有机硅及纳米二氧化硅改性聚丙烯酸酯无皂乳液,并采用红外光谱和透射电子显微镜对其结构进行表征。研究结果表明,当w(烷基乙烯基磺酸盐)=3.5%,w(乙烯基硅油)=8%,w(KH-570)=9%,w(正硅酸乙酯)=6%时,乳液和膜的综合性能最优。随着乙烯基硅油用量和KH-570用量增加,膜的耐水性增大。当w(正硅酸乙酯)=6%时,膜的抗张强度为5.98 N/mm2。Silicone/nano-silica modified polyacrylate emulsifier-free emulsion was synthesized via the emulsifier-free emulsion polymerization and sol-gel technique.The emulsion was characterized by IR and transmission electron microscopy（TEM）.Evaluating the obtained results,the optimal synthesis conditions were the alkyl vinyl sulfonate mass fraction of 3.5%,the vinysilicone oil mass fraction of 8%,the silane coupling agent mass fraction of 9%,and the tetraethoxysilane mass fraction of 6%.Increasing the dosage of vinysilicone oil and silane coupling agent increased the water-resistant ability of film.The silicone/nano-silica modified polyacrylate film containing 6 wt% of tetraethoxysilane had the tensile strength of 5.98 N/mm2.

关 键 词：乙烯基硅油 纳米二氧化硅 聚丙烯酸酯 无皂乳液 纺织染整助剂 

分 类 号：TQ331.47[化学工程—橡胶工业]