摘要
采用聚二甲基硅氧烷作消泡主剂,配以适宜的乳化剂、载体及聚醚,制备高效乳液消泡剂。讨论了消泡主剂、载体、乳化剂对消泡效果的影响。最佳消泡剂配方为:聚二甲基硅氧烷为15%,聚二甲基硅氧烷质量比(500 mPa.s∶1000 mPa.s)为1∶1.3,以0.82%司班60和0.68%吐温60为复合乳化剂,1%超细硅酸铝载体及1%的聚醚L61。制得消泡剂的稳定性及消泡性能和抑泡性能较好,可取代市场常规的油性消泡剂和有机硅消泡剂。
High efficient antifoaming agent was prepared from dimethyl silicone with emulsifier, carrier and polyether L61. The selection of main antifoaming material, carrier, emulsion-dispersing agent and their compounding ratio was reviewed. The results show the best stability and defoaming properties of organosilicon defoamer is achieved when dimethyl silicon mass fraction 15% ,to （500 mPa· s）：ω （1 000 mPa·s） equal to 1 ： 1.3, Span60 （ 0.82 % ）/Tween60 （0.68% ） blend emulsifier, aluminum silicate mass fraction 1% and polyether L61 mass fraction 1%.
出处
《应用化工》
CAS
CSCD
2008年第8期967-969,共3页
Applied Chemical Industry
关键词
有机硅乳液
聚二甲基硅氧烷
消泡剂
消泡性能
organic-silicone emulsion
dimethyl silicone
antifoaming agent
defoaming property
