Heat-resistant single-component addition type organosilicone adhesive and preparation method thereof

A technology of organic silica gel and heat-resistant additives, applied in the direction of adhesives, adhesive additives, polymer adhesive additives, etc., can solve the problems of poor thermal stability and achieve the effect of improving heat resistance

Active Publication Date: 2020-05-15
XIAMEN AIBEISEN ELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problem of poor thermal stability of the existing heat-resistant one-component addition type silicone adhesive mentioned in the above background technology, the present invention provides a heat-resistant one-component addition type silicone adhesive, which includes The following preparation raw materials: vinyl silicone oil, silicone resin, hydrogen-containing silicone oil, heat-resistant additives, fillers, white carbon black, catalysts, inhibitors, tackifiers

Method used

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  • Heat-resistant single-component addition type organosilicone adhesive and preparation method thereof
  • Heat-resistant single-component addition type organosilicone adhesive and preparation method thereof
  • Heat-resistant single-component addition type organosilicone adhesive and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0056] ⑴ Preparation of tackifier

[0057] ①Add 3 parts of cyclohexane, 3 parts of methanol, 7 parts of water, 1.5 parts of 3-(2,3-epoxypropoxy)propylmethyldiethoxysilane, 1 part of γ-methanol into the three-necked flask Acryloyloxypropyltrimethoxysilane; ② Slowly add a mixture of 2 parts of trimethylchlorosilane and 3 parts of methylhydrogendichlorosilane in ① under stirring, and slowly add 2 parts of ethyl borate dropwise; ③ After completing step ②, continue to stir for 2 hours; ④ Wash the product in step ③ with water, remove acid, water, alcohol, and cyclohexane to obtain a thickener.

[0058] (2) At room temperature, add 25 parts of Zhejiang Runhe Chemical RH-Vi305, 25 parts of Jiangxi Xinjiayi XJY-8206N, 6 parts of Zhejiang Runhe Chemical RH-H503, 0.03 parts of 3-methyl-1-butyne- 3-alcohol, 1.2 parts of homemade tackifier in the above (1), stir and disperse evenly.

[0059] (3) Add 0.1 part of Shanghai Sibao ACS-Pt-30 to (2) at room temperature, stir to disperse and mix...

Embodiment 2

[0062] ⑴ Preparation of tackifier

[0063] ① Add 4 parts of cyclohexane, 4 parts of methanol, 8 parts of water, and 3 parts of 3-(2,3-epoxypropoxy)propylmethyldiethoxysilane into the three-necked flask; Slowly add a mixture of 3 parts of trimethylchlorosilane and 5 parts of methylhydrogendichlorosilane dropwise, and slowly add a mixture of 1 part of tributyl borate and 2 parts of tripropyl borate; ③ on the basis of completing step ② and continue to stir for 3 hours; ④Wash the product in step ③ with water, remove acid, remove water, remove alcohol, and remove cyclohexane to obtain a thickener.

[0064] (2) At room temperature, add 35 parts of Zhejiang Runhe Chemical RH-Vi303, 16 parts of Zhejiang Runhe Chemical RH-S0835, 5 parts of Zhejiang Runhe Chemical RH-H536, 0.04 parts of 1-ethynyl cyclohexanol, 1.5 parts of In the above ⑴, make the tackifier by yourself, stir and disperse evenly.

[0065] (3) Add 0.15 parts of Shanghai Sibao ACS-Pt-30 to (2) at room temperature, stir t...

Embodiment 3

[0068] ⑴ Preparation of tackifier

[0069] ①Add 5 parts of cyclohexane, 5 parts of methanol, 9 parts of water, 1.5 parts of 3-(2,3-epoxypropoxy)propylmethyldiethoxysilane, 1 part of 3-( 2,3-Glycidoxy)propyltrimethoxysilane; ② Slowly add a mixture of 3 parts of trimethylchlorosilane and 6 parts of methylhydrogendichlorosilane dropwise in ① under stirring, and slowly add 2 parts of Tripropyl borate; ③ After completing step ②, continue to stir for 3 hours; ④ Wash the product in step ③ with water, remove acid, remove water, remove alcohol, and remove cyclohexane to obtain a tackifier.

[0070] (2) At room temperature, add 30 parts of Shandong Dayi DY-V401, 18 parts of Zhejiang Runhe Chemical RH-S0836, 3 parts of Zhejiang Runhe Chemical RH-H503, 2 parts of Zhejiang Runhe Chemical RH-H536, 0.04 parts of 3 - Methyl-1-butyn-3-ol, 0.8 part of the above-mentioned ⑴ homemade tackifier, stirring and dispersing evenly.

[0071] (3) Add 0.1 part of Shin-Etsu CAT-PL-56 to (2) at room tempe...

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Abstract

The invention relates to the technical field of organosilicone adhesives, and in particular, relates to a heat-resistant single-component addition type organosilicone adhesive and a preparation methodthereof. The heat-resistant single-component addition type organosilicone adhesive comprises the following preparation raw materials: vinyl silicone oil, silicone resin, hydrogen-containing siliconeoil, a heat-resistant additive, a filler, white carbon black, a catalyst, an inhibitor and a tackifier. The prepared heat-resistant single-component addition type organosilicone adhesive is moderate in viscosity, good in construction operability, high in tensile strength and excellent in adhesive property, can achieve the effects of adhesive layer damage, long storage time and good 300-DEG C hot air aging performance, and has wide application value and market prospect.

Description

technical field [0001] The invention relates to the technical field of silicone adhesives, in particular to a heat-resistant one-component addition type silicone adhesive and a preparation method thereof. Background technique [0002] Silicone rubber is a type of polymer with silicon-oxygen bonds as the main chain. It has excellent high and low temperature resistance, weather resistance, radiation resistance, moisture resistance, electrical insulation, and biological inertness. It is widely used in aerospace, electronic appliances, automotive machinery, Medical office, construction and other fields. Ordinary silicone rubber can be used for a long time in the range of -60 ° C ~ 200 ° C, but with the advancement of science and technology, people have put forward higher requirements for the heat aging resistance of silicone rubber, such as coating jet engines, printed circuits The silicone rubber of the board is required to be used for a long time at 250-300°C; the silicone ru...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J183/07C09J183/04C09J183/05C09J11/04C09J11/08C08G77/56
CPCC09J183/04C09J11/04C09J11/08C08G77/56C08L2201/08C08L2205/025C08L2312/00C08L2205/02C08L2205/035C08K2201/011C08L83/04C08L83/14C08K13/06C08K9/06C08K7/26C08K3/22
Inventor 夏金锋蒋家伟李平东罗银发
Owner XIAMEN AIBEISEN ELECTRONICS
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