Preparation of a Silicone Resin-type Packaging Material with High Refractive Index for Light Emitting Diodes

doi:10.3969/j.issn.0251-0790.2012.05.039

Chem. J. Chinese Universities ›› 2012, Vol. 33 ›› Issue (05): 1078.doi: 10.3969/j.issn.0251-0790.2012.05.039

• Polymer Chemistry • Previous Articles Next Articles

Preparation of a Silicone Resin-type Packaging Material with High Refractive Index for Light Emitting Diodes

YANG Xiong-Fa¹, YANG Lin-Lin¹, CAO Cheng¹, ZHU Xiao-Biao², HUA Xi-Lin¹, ZHENG Qun-Liang², SONG Guang-Xin², WU Lian-Bin¹, LAI Guo-Qiao¹

1. Key Laboratory of Organosilicon Chemistry and Material Technology, Ministry of Education, Hangzhou Normal University, Hangzhou 310012, China;
2. Zhejiang Zhongzhou Optoelectronics Co. , Ltd. , Hangzhou 311100, China

Received:2011-11-03 Online:2012-05-10 Published:2012-05-10

Abstract

Abstract: A novel high refractive index and high transparent silicone resin-type material for the packaging of light emitting diode(LED) was introduced. The methylphenyl vinyl silicone resin was synthesized by cohydrolysis of MePhSiCl₂ with Me₂SiCl₂, MeViSiCl₂ and PhSiCl₃, then by co-condensation polymerization catalyzed by KOH and end-capped with Me₃SiCl. Then the silicone material for LED packaging was prepared with the produced methylphenyl vinyl silicone resin, methylphenyl hydrosilicone oil and Karstedt's catalyst. The methylphenyl vinyl silicone resins were characterized by FTIR and ¹H NMR. The silicone resins prepared with very high transmittance at range of 400-800 nm after cured. The LED packaged with the silicone resin-type materials exhibited higher luminous flux, higher light efficiency, narrower color-rendering index and higher color-temperature consistency.

Key words: Light emitting diode, Packaging, Methylphenyl vinyl silicone resin, High refractive index

CLC Number:

O631
TQ322.4

TrendMD:

YANG Xiong-Fa, YANG Lin-Lin, CAO Cheng, ZHU Xiao-Biao, HUA Xi-Lin, ZHENG Qun-Liang, SONG Guang-Xin, WU Lian-Bin, LAI Guo-Qiao. Preparation of a Silicone Resin-type Packaging Material with High Refractive Index for Light Emitting Diodes[J]. Chem. J. Chinese Universities, 2012, 33(05): 1078.

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Preparation of a Silicone Resin-type Packaging Material with High Refractive Index for Light Emitting Diodes

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