摘要
采用单体滴加合成了高硅含量,固含量较高的丙烯酸乳液。研究了油水比,引发剂,乳化剂配比、用量,电解质及有机硅含量对乳液及其膜性能的影响。结果表明:当油水比为0.7,引发剂为油性单体总量的0.5%,乳化剂辛基酚聚氧乙烯醚(OP-10):十二烷基磺酸钠(SLS)为2∶1用量为3.0%,电解质为0.75%时乳液固含量为40.35%,有机硅含量占油性单体总量22%的硅丙乳液时,IR分析显示乳液无单体,有机硅与丙烯酸完成了有效交联且没有发生水解。对乳液做了Ca2+稳定性等测试,性能符合国家标准GB/T20623-2006。
The Silicon-acrylate emulsion of high Solid Content and high organosiloxane content was synthesized by monomer drip method. The Grease-water proportion, initiator content,emulsifier content and rate, electrolytical dosage and silicone content effect on the properties of emulsion and film were studied. It was found that the Silicone-Acrylate Emul- sion and Membrane performance accord with GB /T 20623 -2006 when the The Grease- water proportion is 0.7, electrolytical dosage is 0.75 % ,0. 5 % initiator, the appropritate rate of OP-10 and SLS is 2：1, the right amount o f emulsifier is 3.0%. The Silicone-Acrylate E- mulsion with solids content of 40.35% and silicon content of oily total monomers of 22% were prepared. And IR analysis of the cured film showed that the emulsion polymerization didn＇t have monomer,the effective crosslinking the silicone and acrylic was finished without hydrolysis. Emulsion Ca2＋ stability was tested the performance has reached national standard GB / T20623 -2006.
出处
《沈阳理工大学学报》
CAS
2014年第1期50-53,62,共5页
Journal of Shenyang Ligong University
关键词
高硅含量
硅丙乳液
乳液聚合
high organosiloxane oontent
silicone-acrylate emulsion
emulsion polymerization
