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A kind of transparent silicone gel for stable and oil-proof electronic components

A technology of electronic components and silicone gel, which is applied in the direction of electrical components, semiconductor devices, circuits, etc., can solve the problem that the volatile content of raw materials cannot be effectively reduced, and achieve the effects of avoiding oil leakage, good adhesion, and reducing degradation

Active Publication Date: 2016-09-14
HANGZHOU FIRST APPLIED MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this method, vinyl-terminated silicone oil and hydrogen-containing silicone oil will be cross-linked under the action of platinum catalyst to form a cross-linked network, and unreacted raw materials will be distilled out by vacuum distillation at 180-200°C for 2-4 hours. The body is already a gel, which cannot effectively reduce the volatile content of raw materials

Method used

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  • A kind of transparent silicone gel for stable and oil-proof electronic components
  • A kind of transparent silicone gel for stable and oil-proof electronic components
  • A kind of transparent silicone gel for stable and oil-proof electronic components

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Preparation of component A: Accurately weigh 50 g of diethylene-terminated polydimethyl silicone oil with a vinyl content of 0.6% and a viscosity of 200 cs, 30 g of a diethylene-terminated polydimethyl silicone oil with a vinyl content of 0.42% and a viscosity of 500 cs, vinyl content 0.16% Polydimethylsiloxane 20g with a viscosity of 500cs, one end of vinyl and one end of methyl end capping, platinum-vinyl polydimethylsiloxane, wherein the mass of platinum is 0.0012g, fully mixed evenly by vacuum defoaming machine Then prepare component A.

[0030] Preparation of component B: Accurately weigh 83 g of diethylene-terminated polydimethylsiloxane oil with a vinyl content of 0.26% and a viscosity of 1000cs, 5g of a hydrogen-end-end methyl-terminated polydimethylsiloxane oil with a hydrogen content of 0.042% and a viscosity of 25cs, and hydrogen 10g of hydrogen-terminated polydimethylsiloxane with a viscosity of 0.1% and a viscosity of 30cs, 2g of polyhydrogen-containing sil...

Embodiment 2

[0033] Preparation of component A: Accurately weigh 85g of diethylene-terminated polydimethylsiloxane with a vinyl content of 0.21% and a viscosity of 2000cs, 1000cs of a vinyl content of 0.09% end-capped polydimethylsiloxane with a vinyl group at one end and a methyl group at the other end 15g, platinum-vinyl polydimethylsiloxane, in which the mass of platinum is 0.001g, and the component A is prepared after being thoroughly mixed uniformly with a vacuum defoaming machine.

[0034] Preparation of component B: Accurately weigh 36g of diethylene-terminated polydimethylsiloxane oil with vinyl content 0.13% viscosity 5000cs, vinyl content 0.42% viscosity 500cs diethylene-terminated polydimethylsilicone oil 50g, hydrogen content 0.018% viscosity 10g of 50cs polydimethylsiloxane with hydrogen at one end and methyl end at one end, 2g of polydimethylsiloxane with hydrogen at both ends of 20cs with 0.08% hydrogen content, 2g of hydrogen-containing silicone oil with 0.5% hydrogen conten...

Embodiment 3

[0037]Preparation of component A: Accurately weigh 71.25 g of diethylene-terminated polydimethyl silicone oil with a vinyl content of 0.26% and a viscosity of 1000 cs, 23.75 g of a diethylene-terminated polydimethyl silicone oil with a vinyl content of 0.42% and a viscosity of 500 cs, ethylene 5g of 2000cs polydimethylsiloxane with a vinyl group at one end and a methyl group at the other end with a base content of 0.06%, platinum-vinyl polydimethylsiloxane, wherein the mass of platinum is 0.002g, fully mixed with a vacuum defoamer Prepare A component after homogenization.

[0038] Preparation of component B: Accurately weigh 60g of diethylene-terminated polydimethylsiloxane oil with a vinyl content of 0.6% and a viscosity of 200cs and a hydrogen content of 0.19% with a viscosity of 5cs and 2g of a methyl-terminated polydimethylsilicone oil at one end and a hydrogen content of 0.19%. 20g of 0.038% 40cs hydrogen-terminated polydimethylsiloxane at both ends, 1.5g of polyhydrogen-...

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Abstract

The invention discloses stable and non-oil-leaking type transparent silica gel for an electronic component. The stable and non-oil-leaking type transparent silica gel for the electronic component is composed of a component A and a component B in a mass ratio of 1:1, wherein the component A is composed of vinyl-terminated polysiloxane, polysiloxane one vinyl-terminated end of which is provided with an organic group and a catalyst; and the component B is composed of vinyl-terminated polysiloxane, polysiloxane one hydroxyl-terminated end of which is provided with an organic group, hydroxyl-terminated polysiloxane, hydrogen-containing silicone oil and an inhibitor. The stable and non-oil-leaking type transparent silica gel for the electronic component can not produce an oil leaking phenomenon as time goes on after being cured, and an oil leaking phenomenon of a non-functional plasticizer is avoided; polysiloxane one hydroxyl-terminated end of which is provided with an organic group and hydroxyl-terminated polysiloxane are adopted as raw materials, and chain extension is effectively carried out, so that strength of silica gel is improved while hardness of the silica gel is reduced and elasticity of the silica gel is improved.

Description

technical field [0001] The invention relates to a transparent electronic potting material, in particular to an inner filling glue for high-power LED packaging, which can protect electronic components and components from dust, moisture, shock and insulation. Background technique [0002] With the rapid development of the electronics industry, electronic components are becoming more and more complex and sophisticated. In order to ensure the reliability and service life of electronic components, so as to effectively prevent them from being damaged by dust, moisture or vibration external forces, how to package became a key factor. [0003] Silicone gel is an environmentally friendly solvent-free material. It will not release low molecules during potting, has no stress shrinkage, has certain elasticity, can absorb impact stress, and can be applied to many plastic and metal surfaces. It is widely used in Moisture-proof, insulating coating and potting of electronic components, pla...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L83/07C08L83/05H01L33/56
Inventor 高传花林天翼
Owner HANGZHOU FIRST APPLIED MATERIAL CO LTD
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