Curable organic polysiloxane composition and application thereof

A technology of polysiloxane and composition, which is applied in the direction of semiconductor devices, electrical components, circuits, etc., can solve the problems that light-emitting diodes cannot reflect light, and achieve improved anti-vulcanization effect, prevent phosphor powder from settling, and effectively silver layer effect

Inactive Publication Date: 2016-05-25
DONGGUAN TIANKAI ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] However, the organopolysiloxane structure of the above type has a certain gas permeability regardless of the refractive index or hardness.
There is always a certain amount of hydrogen sulfide or sulfide in the natural environment, or in the composition of electronics, electrical appliances, and devices. This sulfide often penetrates the organopolysiloxane coating at room temperature or high temperature and accumulates to the end. On the silver layer at the top, dark silver sulfide is formed, which makes the light-emitting diode components gradually unable to reflect light and cause light decay.

Method used

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  • Curable organic polysiloxane composition and application thereof
  • Curable organic polysiloxane composition and application thereof
  • Curable organic polysiloxane composition and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] The polymethylphenyl silicone resin polymer containing silicon-bonded vinyl group and the polymethylphenyl silicone resin polymer containing silicon-bonded hydrogen group are uniformly mixed. Among them, the silicon-bonded vinyl content is 4.5 wt%, the silicon-bonded hydrogen group content is 0.13 wt%, and the silicon-bonded phenyl content is 49 wt%. A platinum complex compound of 1,3-divinyl-1,1,3,3-tetramethyldisiloxane is used as a catalyst. (Platinum accounts for 3ppm of the total structure weight) and 1-ethynyl cyclohexanol is used as a working time regulator. (accounting for the total structure weight 150ppm) After the above ingredients are fully and uniformly mixed, the viscosity is 3500cps at 25°C. Divide this thing evenly into three parts, namely (A)(B)(C).

[0023] (A) as a blank test;

[0024] (B) mixed with wt3% magnesium hydroxide (Sigma-Aldrichcompany U.S.A reagent grade, purity 95%);

[0025] (C) mixing the above-mentioned magnesium hydroxide of wt5%;...

Embodiment 2

[0036] The polymethylphenyl silicone resin polymer containing silicon-bonded vinyl groups and the polymethylphenyl silicone resin polymer containing silicon-bonded hydrogen groups are mixed together. Among them, the silicon-bonded vinyl content is 4.7wt%, the silicon-bonded hydrogen group content is 0.14wt%, and the silicon-bonded phenyl group content is 49wt%. A platinum complex compound of 1,3-divinyl-1,1,3,3-tetramethyldisiloxane is used as a catalyst. (Platinum accounts for 3ppm of the total structure weight) and 1-ethynyl cyclohexanol is used as a working time regulator. (accounting for the total structure weight 150ppm) After the above ingredients are fully and uniformly mixed, the viscosity is 3500cps at 25°C. Divide this thing evenly into three parts, namely (A)(B)(C).

[0037] (A) As a blank test

[0038] (B) Mixed with 5% wt of magnesium oxide (Sigma-Aldrichcompany U.S.A reagent grade, specific surface area 130㎡ / g, particle size<25 μm (XRD)).

[0039] (C) 5% by w...

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Abstract

The invention discloses a curable organic polysiloxane composition. The composition is one or more of magnesium oxide, magnesium hydroxide, magnesium carbonate, hydrotalcite, hydrotalcite-like compounds and britesorb. The organic polysiloxane composition added in a semiconductor of a light-emitting component can be used for effectively inhibiting penetration of hydrogen sulfide or sulfide under the condition that the original light-emitting efficiency is not influenced, so that the silver layer is prevented from being oxidized to achieve the effect of effectively protecting the silver layer, and the effect of resisting vulcanization is improved.

Description

technical field [0001] The present invention relates to a curable organopolysiloxane composition and its application in semiconductor devices of light-emitting elements. Background technique [0002] The organopolysiloxane compound containing phenyl-alkyl-alkenyl and silicon bond, including direct bond structure and branch bond structure. Through the reaction of hydrogenated silane, organoplatinum is used as catalyst, alkyne compound is used as working time adjusting agent, and appropriate amount of phosphor is used as light effect adjusting agent to form a curable organopolysiloxane composition, which is widely used in LED The protective sealing layer of the diode light emitter is industrially formed as a light-transmitting resin body with a refractive index of 1.40-1.57. The photoelectric coupling effect of light-emitting diodes emits electricity from the chip in the form of light, and through the effect of electrodeless phosphors, various optoelectronic components are fo...

Claims

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Application Information

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IPC IPC(8): C08L83/07C08L83/05C08K3/22C08K3/34H01L33/56
CPCC08L83/04C08L2203/206C08L2205/025H01L33/56C08K2003/2224C08K2003/222C08K3/34
Inventor 宋宁冈
Owner DONGGUAN TIANKAI ELECTRONICS CO LTD
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