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Silicone planar sealant for automobiles and preparation method of sealant

A technology of flat sealing and silicone, applied in the field of sealants, can solve the problems of unreachable, unable to delay the aging of sealants, poor heat resistance and anti-aging performance of flat sealants, etc., to achieve improved heat insulation effect and anti-aging Enhanced effect, heat resistance and aging resistance

Pending Publication Date: 2022-02-11
襄阳封神新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the deficiencies of the prior art, the present invention provides a silicone plane sealant for automobiles and a preparation method thereof, which solves the problem that the existing plane sealant has poor heat resistance and anti-aging performance, and cannot realize the adjustment of the composition of the sealant. Improvements are made to improve the heat resistance and anti-aging effect of the sealant. It is impossible to improve the heat insulation effect of the sealant by adding heat-resistant agents, furnace black additives, kaolin, methyltrimethoxysilane and anti-aging agents. Purpose, can not achieve the problem of delaying the aging of the sealant

Method used

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  • Silicone planar sealant for automobiles and preparation method of sealant

Examples

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Effect test

Embodiment 1

[0027] A car silicone flat sealant with a raw material comprising: 7 parts of three-membered ethyl propylene rubber, 7 parts of sulfurized methyl silicone rubber, 15 parts, α, ω-dihydroxy polyimethylsiloxane, 7 parts of the furnace, 4 parts of gas phase silica, 4 heat resistant agents, 4 parts of kaolin, 4 parts of methyltrimethoxysilane, 4 parts of transformer oil, 4 parts of methyl silicone, 4 parts of the aging agent, accelerator 4 parts, 4 parts of the crosslinking agent and 4 parts of the aminosilane coupling agent, the furnace black additive is a non-pollutant high-pose half-replenishing furnace black, the heat resistant agent is nano active calcium carbonate, the promoter is ethylene glycol dithionium Acid esters, crosslinking agents were 2,5-dimethyl-2,5 di-tert-butyl peroxide.

[0028] The embodiment of the present invention also discloses a method of preparing a silicone plane sealant for a car, and specifically includes the following steps:

[0029] S1, the amount of ra...

Embodiment 2

[0035] A car silicone flat sealant with a raw material comprising 5 parts by weight of 5 parts, 5 parts of sulfide rubber, α, ω-dihydroxy polydimethylsiloxane, 10 parts, α, ω-dihydroxy polyimethylsiloxane. 5 parts of the furnace, 3 parts of gas phase silica, 3 heat resistant agents, 3 parts of kaolin, 3 methyltrimethoxysilane, 3 transformer oil, 3 methyl silicone oil, 3 aging agents, Accelerator Three parts, 3 parts of the crosslinking agent and 3 parts of the amino silane coupling agent, the furnace black additive is a low-structure fast pressure furnace, the heat resistant agent is zinc oxide, the promoter is ethylene glycol diolic acid ester, crosslinking agent It is a benzoyl oxide.

[0036] The embodiment of the present invention also discloses a method of preparing a silicone plane sealant for a car, and specifically includes the following steps:

[0037] S1, the amount of raw material: First, by the ingredients, the required weight ratio is taken by the ingredients of the req...

Embodiment 3

[0043] A car silicone flat sealant with a raw material comprising: 10 parts of three-membered ethyl propylene rubber, 10 parts of sulfide rubber, α, ω-dihydroxy polyimethylsiloxane, 10 parts of the furnace, 5 parts of gas-phase silica, 5 heat resistant agents, 5 parts of kaolin, 5 parts of methyltrimethoxysilane, 5 transformer oil, 5 methyl silicone oil, 5 degreatment agents, promoters 5 parts, 5 parts of the crosslinking agent and 5 parts of the amino silane coupling agent, the furnace black additive is a high resistance furnace, the heat resistant agent is a nano-active calcium carbonate, the promoter is ethylene glycol dimercalate, cross-linking The agent is 2,5-dimethyl-2,5 di tert-butyl peroxide.

[0044] The embodiment of the present invention also discloses a method of preparing a silicone plane sealant for a car, and specifically includes the following steps:

[0045] S1, the amount of raw material: First, by the ingredients, the required weight ratio is taken by the ingre...

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Abstract

The invention discloses a silicone planar sealant for automobiles and a preparation method of the sealant. The silicone plane sealant comprises the following raw materials in parts by weight: ethylene propylene diene monomer, vulcanized methyl silicone rubber, alpha,omega-dihydroxy polydimethylsiloxane, a furnace black additive, fumed silica, a heat-resistant agent, kaolin, methyltrimethoxysilane, transformer oil, methyl silicone oil, an anti-aging agent, an accelerant, a cross-linking agent and an amino silane coupling agent. The invention relates to the technical field of sealants. According to the silicone plane sealant for the automobile and the preparation method of the silicone plane sealant, the heat resistance and the anti-aging effect of the sealant can be improved by improving the components of the sealant, and the purpose of improving the heat insulation effect of the sealant by adding the heat-resistant agent, the furnace black additive, the kaolin, the methyltrimethoxysilane and the anti-aging agent is well achieved; and the aging of the sealant is delayed, and the heat resistance and the aging resistance of the plane sealant are enhanced, so that the plane sealant is greatly convenient for people to use.

Description

Technical field [0001] The present invention relates to the field of sealant technology, in particular a car silicone flat sealant with a car and a preparation method thereof. Background technique [0002] Planar sealing gum is a general-purpose planar sealant for a flat seal of the flange deformation when working, and the planar sealant is used between the two tightly fit metal surfaces, and is generally suitable for the pump. Class, thermostat, compressor, gear housing, bridge housing, sealing liner, and repair damaged pads, currently in China, mostly anaerobic glue, such products In terms of oil resistance, anti-vibration, vibration, applicability, etc., most manufacturers are 20 degrees Celsius, oil resistant 150 degrees Celsius. The temperature of the automotive engine and the like may sometimes reach very high (more than 200 degrees Celsius), and the planar sealing gum maintains its strength and sealing in this high temperature, and is essential in the aviation industry, au...

Claims

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Application Information

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IPC IPC(8): C09J183/04C09J123/16C09J11/04C09J11/06C09J11/08
CPCC09J183/04C09J11/04C09J11/06C09J11/08C08K2003/265C08K2003/2296C08K2201/011C08L2201/08C08L23/16C08K3/04C08K5/5419C08K3/26C08K3/346C08K3/22
Inventor 别波李相勇卞仕龙
Owner 襄阳封神新材料有限公司
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