便于真空脱泡的高折光率LED封装用硅橡胶的研制.pdf

第39卷第10期 化工新型材料 VoI．39No．10 2011年10月 NEWCHEMICALMATERIALS ·115· 便于真空脱泡的高折光率LED封装用硅橡胶的研制 邵倩杨琳琳杨雄发 曹 建华西林来国桥 (杭州师范大学有机硅化学及材料技术教育部重点实验室，杭州310012) 摘要在加成型LED封装材料硫化过程中。需要经真空脱泡。在用甲基苯基环硅氧烷(D≯’P11)与四甲基环四硅氧 烷Dll开环共聚合。乙烯基双封头作封端弃3。制备乙烯基硅油过程中，向原料中添加适量三氟丙基环三硅氧烷，实现了向 聚合物分子链中引入三氟丙基硅氧链节，降低了聚合物的表面张力，达到便于真空脱泡的目的。 关键词LED，甲基苯基含氢硅油，脱泡，表面张力 a refractiveindexsiliconerubberde-bubbled Synthesishigh easy reductionforLED throughpressure encapsulant Shao Linlin CaoianHuaXilinLai Qian J Yang YangXiongfa Guoqiao of andMaterial of of (KeyLaboratoryOrganosiliconChemistry TechnologyMinistry Normal 310012) University，Hangzhou AbstractAkindof andcolorless fluidwith refractiveindex as transparent high serving methylphenylhydrosilicone for was ofmeth— 1iquidcross-linkingagentLightEmittingDiode(LED)packagepreparedbyring-openingeopolymerization and cation drogencyclosiloxanemethylphenylcyclosiloxaneby exchange ylhy catalyzed resin．De-bubblingthroughpressure reductionneedtObe thevulcanizationofadditionsiliconeforLEl3encausulantmaterials．Inordertode- adoptedduring reduction amountof bubblingthroughpressure easily，appropriate clotrisiloxanewasaddedintothemonomermixturesof andtetra—