Organic silicon modified epoxy resin paint film and preparation method thereof

A technology of epoxy resin paint and epoxy resin, which is applied in the field of materials, can solve the problems of slow curing and molding speed, and achieve the effect of improving gloss and rapid curing and molding

Inactive Publication Date: 2021-05-07
江西瀚泰新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But its curing speed is slow

Method used

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  • Organic silicon modified epoxy resin paint film and preparation method thereof
  • Organic silicon modified epoxy resin paint film and preparation method thereof

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Experimental program
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Effect test

Embodiment 1

[0016] Organosilicon modified epoxy resin paint film comprises the following raw materials in parts by weight: 140 parts of H-type epoxy resin, 20 parts of organic silicon resin, 35 parts of polysiloxane, 25 parts of nano-calcium carbonate, 35 parts of graphene, 20 parts of ethylene glycol diglycidyl ether, 60 parts of methyl ethyl ketone.

[0017] The preparation method of silicone-modified epoxy resin paint film comprises the following steps: uniformly mix H-type epoxy resin, silicone resin and polysiloxane, heat up to 70-80°C for addition reaction for 4 hours, until the reaction is complete, Cool to room temperature; then add nano-carbonate and graphene, heat to a constant temperature of 50-60°C, drop in ethylene glycol diglycidyl ether while stirring, finish dropping within 1 hour, then add methyl ethyl ketone, and stir at room temperature for 1.2 hours, That's it.

Embodiment 2

[0019] Organosilicon modified epoxy resin paint film comprises the following raw materials in parts by weight: 130 parts of H-type epoxy resin, 10 parts of silicone resin, 30 parts of polysiloxane, 20 parts of nano iron carbonate, 30 parts of graphene, 10 parts of ethylene glycol diglycidyl ether, 40 parts of methyl ethyl ketone.

[0020] A method for preparing a silicone-modified epoxy resin paint film, comprising the following steps: uniformly mixing H-type epoxy resin, silicone resin, and polysiloxane, raising the temperature to 70-80° C. for addition reaction for 1 hour, until the reaction is complete, Cool to room temperature; then add nano-carbonate and graphene, heat to 50-60°C constant temperature, drop in ethylene glycol diglycidyl ether while stirring, finish dropping within 1h, then add methyl ethyl ketone, stir at room temperature for 1h, that is Can.

Embodiment 3

[0022] Organosilicon modified epoxy resin paint film comprises the following raw materials in parts by weight: 160 parts of H-type epoxy resin, 30 parts of organic silicon resin, 40 parts of polysiloxane, 30 parts of nano-magnesium carbonate, 40 parts of graphene, 30 parts of ethylene glycol diglycidyl ether, 80 parts of methyl ethyl ketone.

[0023] The preparation method of silicone-modified epoxy resin paint film comprises the following steps: uniformly mixing H-type epoxy resin, silicone resin and polysiloxane, raising the temperature to 70-80°C for addition reaction for 5 hours, until the reaction is complete, Cool to room temperature; then add nano-carbonate and graphene, heat to 50-60°C constant temperature, drop in ethylene glycol diglycidyl ether while stirring, finish dropping within 1 hour, then add methyl ethyl ketone, stir at room temperature for 2 hours, that is Can.

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Abstract

The invention discloses an organic silicon modified epoxy resin paint film and a preparation method thereof. The method comprises the following steps: uniformly mixing H-type epoxy resin, organic silicon resin and polysiloxane, heating to 70-80 DEG C, carrying out addition reaction for 1-5 hours until the reaction is complete, and cooling to the room temperature; and then adding nano carbonate and graphene, heating to 50-60 DEG C, keeping the temperature constant, dropwise adding ethylene glycol diglycidyl ether while stirring within 1 hour, then adding methyl ethyl ketone, and stirring at normal temperature for 1-2 hours. The H-type epoxy resin in the prior art is poor in glossiness, a small amount of organic silicon resin can improve the glossiness, and due to the addition of polysiloxane, the glossiness of the resin can be improved, and rapid curing forming can be achieved.

Description

technical field [0001] The invention belongs to the field of materials, in particular to an organosilicon-modified epoxy resin paint film and a preparation method thereof. Background technique [0002] Epoxy resins have secondary hydroxyl groups and epoxy groups, and the secondary hydroxyl groups can react with isocyanates. Epoxy resin is directly added to the hydroxyl group-containing component of the polyurethane adhesive as a polyol. Using this method, only the hydroxyl group participates in the reaction, and the epoxy group fails to react. [0003] The Chinese patent application with the application number CN201810237621.X discloses a high heat-resistant epoxy resin coating, which is characterized in that it includes: o-phenylphenol, phosphorus trichloride, 2-phenyl-phenoxyphosphorous acid, Hydroxybiphenyl-2-phosphinic acid, phosphorus-containing silicone resin, unsaturated polyester resin, ethylenediamine, nano calcium carbonate. The high heat-resistant epoxy resin co...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D163/00C09D183/04C09D7/61C09D7/63
CPCC08K2003/265C08K2003/267C08K2201/011C08L2205/025C08L2205/03C09D163/00C09D7/61C09D7/63C08L83/04C08K13/02C08K3/26C08K3/042C08K5/1515
Inventor 沈岳伍宽平吕宏飞
Owner 江西瀚泰新材料科技有限公司
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