三头基型季铵盐表面活性剂的合成及表面性能研究

摘要

以甲胺醇溶液、环氧氯丙烷、十二胺、十六胺、十八胺为主要原料,合成出一种新型的表面活性剂BHMDn,(n=12,16,18,代表两端烷基链的碳原子个数),考察其的表面活性以及盐对其表面活性的影响.结果表明,目标产物水溶液的cmc分别为l×10-4,6×10-5,5×10-5 mol/L;临界胶束浓度下的表面张力rcmc分别为27.4,21.5,19.6 mN/m.目标物与十二烷基苯磺酸钠(SDBS)复配产生了较好的协同效应.%A kind of new surfactant BHMDn,(n = 12,16,18 which represents the number of carbon atoms of the chain alkyl) was synthesized by using amine alcohol solution, epichlorohydrin, dodecylamine, hexa-decylamine, octadecylamine. The surface activity and the effect of salt of BHMDn were studied. The one values of aqueous solution of target product were 1 x 10~4,6 x 10"5,5 x 10 "5 mol/L;the ranc of BHMDn were 27.4,21.5,19.6 mN/m. The target showed good coordination effect when it was blended with sodium dodecyl benzene sulfonate(SDBS).