第26卷第9期 2018年9月
文章编号
1004-924X (2018 )09-2169-05
光学精密工程
Optics and Precision Engineering
补强型透明电子灌封胶的制备及性能
范敬辉吴菊英，马艳
（中国工程物理研究院总体工程研究所，四川绵阳621999）
Vol.26No.9
Sep.2018
摘要为了改善透明电子灌封胶的力学性能，采用加成反应制备了补强型室温固化透明电子灌封胶。首先，通过开环聚合制备乙烯基封端的聚硅氧烷；以硅氢基封端的聚硅氧烷为交联剂，在铂配合物的催化作用下，制备得到可室温固化的透明型灌封基胶。采用MQ硅树脂对基胶进行补强,研究了MQ硅树脂的含量对灌封胶透光性、力学和绝缘性能的影响。结果表明，MQ硅树脂在含量15份时.补强型灌封胶的可见光透过率、电阻率、拉伸强度分别达到84%、2.77×10l+Q· cm、5.2MPa；MQ硅树脂的适量加入有效提高了灌封胶的力学性能；试样在热老化和湿热老化之后仍保持优良的光学、力学和绝缘性能。
关键词：MQ硅树脂；灌封胶；透光率；力学性能；绝缘性能
doi:10.3788/0PE.20182609.2169
中图分类号：TP324；TQ322.4文献标识码：A
Preparation and properties of reinforced transparent electronic encapsulant
FANJing-hui*,WUJu-ying,MAYan
(Institute of System Engineering,ChinaAcademy of EngineeringPhysics,Mianyang621999,China)*Correspondingauthor，E-mail:fanji@caep.cn
Abstract: To improve the mechanical property of transparent electronic encapsulant, reinforced transparent electronic encapsulant was obtained by additional method at room temperature. Firstly vinyl-terminated polysiloxane was synthesized by ring-opening polymerization . U sing Si-H-terminated polysiloxane as crosslinking agent and platinum complexes as catalyst , the transparent gum that cured at room temperature was prepared and subsequently reinforced by filling in MQ silicone resin. The influenceoftheamount ofMQsiliconeresinonthetransmittance,mechanics,andinsulation performance of the encapsulant was studied. The results indicate that the tensile strength, transmittance,and resistivity of the encapsulant reach 5.2MPa,84%, and 2.77X1o·cm, respectively , when the MQ silicone resin content is 15 phr; the mechanics performance is markedly improved when a suitable quantity of M Q silicone resin is filled in ; the mechanics , transmittance, and insulation performance of the encapsulant is excellent after thermal aging , damp and thermal aging . Key words: MQ silicone resin; encapsulant; transmittance; mechanics; insulation
收稿日期：2018-05-24；修订日期：2018-06-29，
基金项目：国家自然科学基金委员会-中国工程物理研究院联合基金资助项目（No.U1530102）；四川省科技厅应用
基础研究重点项目（No.2017JY0149）