摘要
Abstract
Using 1,1,1,3,5,5,5-heptamethyltrisioxane (HTSO) and hydroxyl-terminated al yl polyether (FAE-10) as raw material, the epoxy group trisiloxane (ETS) was synthesized through hydrosilylation reaction. Then a new kind of phosphate ester polyether modified trisiloxane surfactant (PATS) had been prepared through phosphation reaction of ETS with phosphoric acid. And its relevant properties were characterized. The structure of PATS was characterized by IR and 1HNMR. Via orthogonal designed experiments, the optimum re⁃action conditions for phosphate ester trisiloxane surfactant were obtained as:n(ETS)∶n(H3PO4)=1.10∶1, the reac⁃tion time was 6 h and the reaction temperature was 90 ℃. PATS had good surface activity, the critical micel e concentration (cmc) was 0.49 g/L and the surface tension (γcmc) was 24.12 mN/m. At the same time, PATS had good stable foaming force, under the conditions of acidic and neutral, PATS had the best hydrolysis resistance stability.关键词
磷酸酯/三硅氧烷/表面张力/耐水解稳定性Key words
phosphate ester/trisiloxane/surface tension/stability to hydrolysis resistance分类
化学化工
