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A kind of silicone resin with bonding performance and preparation method thereof

An adhesive property, silicone resin technology, applied in electrical components, circuits, semiconductor devices, etc., can solve problems such as unsuitable silicone LED packaging colloids, and achieve the effects of low cost, mild reaction conditions, and easy availability of raw materials

Inactive Publication Date: 2018-06-12
SHENZHEN CAPCHEM TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Li Gang et al. (Synthesis and Application of Epoxy-terminated Silicone Resins, Chemistry and Adhesion, 2008.02) prepared epoxy-terminated silicone resins using organic silicon intermediates and KH-560 under the catalysis of organic acids. The resin has good compatibility, but the resin is yellow-brown, so it is not suitable for high-transparency silicone LED encapsulation adhesive system

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] With 150 parts by weight of phenyltrimethoxysilane (Changsha Kaimen Organic Silicon Co., Ltd.), 20 parts by weight of methylphenyldimethoxysilane (Hubei Hengxin Chemical Co., Ltd.), 6 parts by weight of vinylmethyl Diethoxysilane (Hubei Hengxin Chemical Co., Ltd.), 15 parts by weight of γ-glycidyl ether oxypropyl trimethoxysilane (Western Asia reagent), 10 parts by weight of γ-methacryloxypropyl trimethyl Oxysilane (Hangzhou Dadi Chemical Co., Ltd.), 15 parts by weight of boric acid, 18 parts by weight of 1,3-divinyl-1,1,3,3-tetramethyldisiloxane (Bailingwei Technology Co., Ltd.) Add to the reactor, add 60 parts by weight of water and 40 parts by weight of ethanol, add 5% hydrochloric acid (concentration 36%) of the total amount of siloxane as a catalyst, heat up to 80 ° C for 8 hours, add xylene and water Stir and mix, then let stand to separate the organic layer and the water layer, wash the organic layer repeatedly until neutral, then dry, and then distill under redu...

Embodiment 2

[0051] With 120 parts by weight of phenyltriethoxysilane (Hangzhou Dadi Chemical Co., Ltd.), 18 parts by weight of diphenyldimethoxysilane (Guangzhou Longkai Chemical Co., Ltd.), 4 parts by weight of vinylmethyl dimethoxy Base silane (Qufu Wanda Chemical Co., Ltd.), 15 parts by weight of β-(3,4-epoxycyclohexyl) ethyltrimethoxysilane (Hangzhou Yiyuan Chemical Co., Ltd.), 10 parts by weight of trimethyl borate ( Bailingwei Technology Co., Ltd.), 30 parts by weight of 1,3-divinyl-1,1,3,3-tetramethyldisilazane (Nanjing Lianye Chemical Co., Ltd.) joins the reactor, after adding 45 parts by weight 30 parts by weight of water and 30 parts by weight of toluene, add 1% sulfuric acid (concentration 98%) of siloxane total amount as a catalyst, heat up to 100 ℃ for 5h, add toluene and water and stir to mix, then stand to separate the organic layer and water layer, the organic layer was repeatedly washed with water until it became neutral, then dried, and then distilled under reduced press...

Embodiment 3

[0053] With 130 parts by weight of phenyltriethoxysilane (Hangzhou Dadi Chemical Co., Ltd.), the methylphenyldiethoxysilane (Sigma reagent) of 16 parts by weight, the vinylmethyldiethoxysilane of 6 parts by weight (Hubei Hengxin Chemical Co., Ltd.), 10 parts by weight of γ-glycidyloxypropyl triethoxysilane (Western Asia reagent), 10 parts by weight of γ-methacryloxypropyl triethoxysilane (Hangzhou Dadi Chemical Co., Ltd.), 20 parts by weight of tributyl borate (Bailingwei Technology Co., Ltd.), 20 parts by weight of 1,3-divinyl-1,1,3,3-tetramethyldisiloxane (Bailingwei Technology Co., Ltd.) joins the reactor, adding 70 parts by weight of water and 35 parts by weight of methyl alcohol, adding trifluoromethanesulfonic acid (Nanjing Chemical Reagent Co., Ltd.) of siloxane total amount 3% as a catalyst, Raise the temperature to 60°C to react for 8 hours, add methyl acetate and water to stir and mix, then let stand to separate the organic layer and the water layer, wash the organic...

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Abstract

The invention discloses a silicone resin with adhesive properties and a preparation method thereof. The silicone resin is trialkoxysilane, dialkoxysilane, epoxyalkylsilane, (meth)acryloyloxysilane, containing The reaction between the boron compound and the end-capping agent is carried out under the environment of water and an organic solvent under the action of an acid as a catalyst, and then the organic layer is separated, washed with water until neutral and then dried to obtain a colorless and transparent silicone resin. The silicone resin of the present invention has good compatibility with ordinary organic silicon LED packaging materials, and can significantly improve the bonding performance between the cured organic silicon LED packaging material and the base material when used in organic silicon LED packaging materials, and is colorless and transparent. The light extraction efficiency of the cured encapsulation glue is not affected, the preparation process is simple, the raw materials are readily available, the cost is low, the reaction conditions are mild, the process is simple, the operability is strong and the industrial production is easy.

Description

technical field [0001] The invention relates to the field of silicone material encapsulation materials, in particular to a silicone resin with adhesive properties and a preparation method thereof. Background technique [0002] Silicone LED (light-emitting diode) packaging materials can solve the problem of traditional epoxy resin packaging materials due to their characteristics of high refractive index, high light transmittance, thermal shock resistance, aging resistance, low internal stress and low moisture absorption. There are many technical problems. In recent years, with the development of high-efficiency, energy-saving, and green LED lighting technology, silicone is an ideal choice for LED packaging materials. Vinyl-containing siloxane and hydrogen-containing siloxane are cured and molded through hydrosilicon addition reaction to obtain silicone LED packaging materials. Addition-type liquid silicone rubber has no by-products in the vulcanization process, low shrinkage...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G77/18C08G77/20C08G77/06H01L33/56
Inventor 赵大成吴艳马子淇汪雄伟
Owner SHENZHEN CAPCHEM TECH CO LTD
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