端环氧基有机硅树脂的合成与应用.pdfVIP

化 学 与 黏 合 2008年第 30卷第 2期 CH EM ISTRY AND ADH ESION ·15 · 端环氧基有机硅树脂的合成与应用 李 　刚 , 　张恩天 , 　陈维君 , 　宋军军 , 　王 　熹 (黑龙江省石油化学研究院 胶黏剂工程技术研究中心 ,黑龙江 哈尔滨 150040) 摘要 :采用有机硅中间体与 γ- [ (2 , 3) - 环氧丙氧 ]丙基甲基二甲氧基硅烷共缩聚 ,对不同的催化体系进行了比较 ,确定 了较为适合的催化剂 ,制得平均相对分子质量为 3666. 9,黏度为 58. 6Pa ·s,环氧值为 0. 08mo l/ 100g 的端环氧基有机硅树脂 。 此树脂兼有环氧树脂和有机硅树脂的优点 ,不仅可提高有机硅树脂与环氧树脂的混溶性 ,而且具有较好的粘接性能、耐热性 和剪切强度 。介绍了端环氧基有机硅树脂的合成及其性能 。 关键词 :端环氧基 ;有机硅中间体 ;改性 ;混溶性 中图分类号 : TQ 433. 438　　　　　文献标识码 : A 　　　　　文章编号 : 1001 - 0017 (2008) 02 - 00 15 - 03 The Syn the sis and App lication s of Epoxy - term inated Silicone R e sin L I Gang, ZHAN G En - tian , CH EN W ei - jun, SON G Jun - jun and WAN G X i (H eilongj iang Institu te of P etrochem istry, H a rbin 150040, Ch ina) Abstract: A novel epoxy - term inated silicone resin wh ich had the average molecu lar weight of 3666. 9 , the visco sity of 58. 6Pa ·s and the epoxy value of 0. 08mol/ 100g was synthesized from silicone interm ediates and γ- [ (2 , 3) - epoxyp ropoxy ] p rop ylm ethyldim ethoxysilane by conden sation poly m erization after comp aring the different catalysis system s and selecting p rop er catalyst. The epoxy - term inated silicone resin had the advantages both of the epoxy and silicone resin s. The modified resin not on ly imp roved the m iscib ility of epoxy and silicone resin s, bu t also had the excellent heat resistance, bonding p rop erty and shear strength. The synthesis and p rop erties of epoxy - term inated silicone resin were also introduced. Key words: Epoxy - term inated; silicone interm ediate; modification; m iscib ility 酚 A 型环氧树脂有很好的相容性 ,解决了以往有机 前 　言