聚硅氧烷乳液交联制备脱模剂的工艺条件研究  

Preparation of Release Agent by Cross-linking of Polysiloxane Emulsion

作　　者：李建隆[1] 苑光辉[1] 王宇光 刘颖 

机构地区：[1]青岛科技大学化工学院,山东青岛266042 [2]中国化学赛鼎宁波工程有限公司,浙江宁波315040

出　　处：《青岛科技大学学报（自然科学版）》2013年第6期589-592,共4页Journal of Qingdao University of Science and Technology:Natural Science Edition

基　　金：山东省自然科学基金资助项目(ZR2011BQ006)

摘　　要：以二甲基硅氧烷混合环体（DMC）为原料,利用乳液聚合法制得聚硅氧烷乳液,并用乙醇醇解甲基三氯硅烷所得的甲基三乙氧基硅烷进行乳液交联,最后以三甲基氯硅烷作为封端剂为其封端.研究了交联温度、交联反应时间、交联剂用量以及封端剂用量对乳液的影响,并确定了最适宜的反应条件,即交联温度为（60±5）℃,交联时间4h左右,交联剂用量为DMC质量的34％～46％,封端剂用量为DMC质量的5％～7％.Polysiloxane emulsion was prepared by emulsion polymerization using dimethylsiloxane hybrid ring body as raw material,Methyltrichlorosilane was alcoholysized by ethanol to prepare methyltriethoxysilane.The release agent was prepared by cross-linking reaction between emulsion and methyltriethoxysilane,and by end capping using trimethylchlorosilane as end capping agent.The influences of cross-linking temperature,cross-linking time,dosages of cross-linking and end capping agents on emulsion properties were studied.The optimum conditions were cross-linking temperature （60±5） ℃,cross-linking time 4 h,dosage of cross linking agent 34％-46％,dosage of end capping 5％-7％.

关 键 词：二甲基硅氧烷混合环体(DMC) 乳液 交联 透光度 

分 类 号：TQ413.2[化学工程]