中国塑料 ›› 2015, Vol. 29 ›› Issue (09): 32-37 .DOI: 10.19491/j.issn.1001-9278.2015.09.007

• 材料与性能 • 上一篇    下一篇

硅氢基与乙烯基比例对大功率LED封装用有机硅树脂固化行为的影响

闫冉1,徐日炜2,赵宇轩1,向攀1,杨朝金1,杨明山1   

  1. 1. 北京石油化工学院2. 北京化工大学
  • 收稿日期:2015-03-10 修回日期:2015-05-05 出版日期:2015-09-26 发布日期:2015-09-26

Effect of the Ratio of Si—H/C=C of Organosilicone Resin Materials for Large-power LED Packaging on Curing Behavior

  • Received:2015-03-10 Revised:2015-05-05 Online:2015-09-26 Published:2015-09-26

摘要: 选用端乙烯基苯基硅油为基础树脂,含氢苯基硅油为固化剂,铂络合物为催化剂制备了发光二极管(LED)封装用有机硅树脂。用非等温差示扫描量热分析法研究了硅氢基与乙烯基比例对有机硅树脂的固化行为的影响。结果表明,硅氢基与乙烯基比例为1.6时,固化温度最低,即反应条件最为温和;确定固化工艺为真空脱泡后前段固化温度为80 ℃/1 h,而后95 ℃/2 h。

关键词: 发光二极管, 封装, 有机硅树脂, 固化动力学

Abstract: A organosilicone resin for largepower LED packaging was prepared through Si—H addition reaction of hydrogensilicone with vinylsilicone catalyzed by Pt coordination compound in this paper, and the effect of the ratio of Si—H/C=C on curing behavior of the organosilicones was investigated by nonisothermal DSC method. It was found that when the ratio of Si—H/C=C was 1.6, the curing temperature was the lowest. After the process for vacuum deaeration the curing temperature program was 80 ℃ for 1h and then 95 ℃ for 2 h.

Key words: light emitting diodes, packaging, organosilicone resin, curing kinetics