陕西科技大学学报（自然科学版）2016，Vol.34Issue(3)：71-75,5.
磷酸酯型三硅氧烷表面活性剂的合成及应用性能
Synthesis and application properties of phosphate trisiloxane surfactants
摘要
Abstract
Hydroxyl-terminated polyether modified trisiloxanes (TPETS)was prepared by hydrosilylation of 1,1,1,3,5,5,5-heptamethyltrisiloxane(HTSO)with allyl polyoxyethylene ether (FAE-10)in the presence of chloroplatinic acid.A new kind of phosphate trisiloxane surfactants (PTSS)was synthesized by the esterification reaction of TPETS with phosphoric acid(H3 PO4 ).The esterification reaction conditions of PTSS synthesis were optimized using orthogonal test.The structure of PTSS was characterized by infrared spectra (IR).The criti-cal surface tension (γcmc )and critical micelle concentration (cmc)of PTSS solution were measured.And its application was investigated in pesticide.Experimental results were showed as follows.Optimum conditions of the esterification reaction for the PTSS are that reaction temperature is 80 ℃,reaction time is 4 h,n(TPETS)∶n(H3PO4)=1∶1.1.Theγcmcof PTSS solution is 21.9 mN/m,the cmc of PTSS solution is 5.0×10-4 g/mL.When PTSS solution was added with 0.1% into glyphosate isopropylamin 41% AS and thiophanate-methyl 36% SC diluted to 1 000 times with water,the surface tension of glyphosate isoprop-ylamin solution and thiophanate-methyl solution decreased from 54.83 mN/m and 45.48 mN/m to 20.38 mN/m and 17.40 mN/m,respectively.It′s the spreading area on the ginkgo leaves,horse chestnut leaves,french phoenix tree leaves and plastic film is increased 4~8 times and 2~4 times,respectively.关键词
三硅氧烷表面活性剂/磷酸酯型/有机硅/界面性能/农药助剂/铺展面积Key words
trisiloxane surfactant/phosphate/organosilicone/interfacial property/pesticide auxiliaries/spreading area分类
化学工程引用本文复制引用
黄良仙,李顺琴,李婷,贾银银,张乐..磷酸酯型三硅氧烷表面活性剂的合成及应用性能[J].陕西科技大学学报（自然科学版）,2016,34(3):71-75,5.基金项目
陕西省教育厅自然科学专项科研计划项目(2013JK0661) （2013JK0661）
