摘要
以γ-(2,3环氧丙氧)丙基三甲氧基硅烷为原料水解缩聚制备了环氧倍半硅氧烷(SSQ-EP),在此基础上制备了LED封装用透明双酚A型环氧树脂(DGEBA)/SSQ-EP杂化材料。分别采用凝胶渗透色谱仪、傅立叶变换红外光谱仪、阿贝折光仪、紫外-可见分光光度计对SSQ-EP和DGEBA/SSQ-EP杂化材料进行表征。结果表明,当去离子水与γ-(2,3环氧丙氧)丙基三甲氧基硅烷的物质的量之比为1.5时,SSQ-EP的数均相对分子质量最大,为6735;随着DGEBA含量的增大,杂化材料的折射率在1.47～1.53范围内变化,杂化材料固化后由弹性体变为硬树脂;当SSQ-EP与DGEBA的质量比为1:1时,杂化材料的综合性能最佳。
Epoxy-silsesquioxane（SSQ-EP） was synthesized from γ-（ glycidoxypropyl） trimethoxysilane through the hydrolytic polycondensation. Transparent hybrid material for LED packaging was prepared based on SSQ-EP and bisphenol-A epoxy（DGEBA）. The hybrid material and SSQ-EP was characterized by FTIR, GPC, Abbe refractometer and UV-Vis. It was found that when molar ratio of deionized water to γ-（glycidoxypropyl） trimethoxysilane was 1.5, the number average molecular weight of SSQ-EP was the highest up to 6735. With increasing the DGEBA content from 0 to 100% , the refractive index of hybrid material was increased from 1.47 to 1.53 and hybrid material was varied from elastomer to hard resin. When the mass ratio of SSQ-EP to DGEBA was 1 ： 1, hybrid material showed optimum performance.
出处
《工程塑料应用》
CAS
CSCD
北大核心
2009年第3期5-8,共4页
Engineering Plastics Application
基金
上海市教委基金资助项目(07ZZ13)
