Gluing agent for mica plate as well as preparation method and application of sizing agent

A technology of mica board and sizing agent, which is applied in the direction of adhesives, film/sheet adhesives, and adhesive additives, etc. Black smoke and other problems, to achieve the effect of increasing the chemical crosslinking density and improving the mechanical strength

Pending Publication Date: 2022-05-13
GOODE EIS SUZHOU CORP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This invention solves the problem of insufficient flexibility of traditional organic high-temperature-resistant modified silicone resin adhesives used in high-temperature and high-humidity environments for a long time. defect problem
[0004] But the existing sizing agent is mainly two kinds of epoxy resin and methyl silicone resin, the mica plate prepared by epoxy resin as sizing agent has high mechanical strength but high temperature fire resistance is not as good as methyl silicone resin; Insufficient mechanical properties of mica board pressed with silicone resin as sizing agent

Method used

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  • Gluing agent for mica plate as well as preparation method and application of sizing agent
  • Gluing agent for mica plate as well as preparation method and application of sizing agent
  • Gluing agent for mica plate as well as preparation method and application of sizing agent

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] A sizing agent for mica boards, which comprises the following components in parts by weight:

[0039]

[0040] The preparation method of the sizing agent provided in this embodiment includes: nano-silica sol (solid content is 30%), methyl silicone resin (solid content is 50%, Jilin Donghu Organic Silicon Co., Ltd., DH-1), Toluene, oxalic acid and silane coupling agent KH560 were mixed for 60 minutes to obtain the sizing agent.

Embodiment 2

[0042] A sizing agent for mica boards, which comprises the following components in parts by weight:

[0043]

[0044] The preparation method of the sizing agent provided in this embodiment includes: nano-silica sol (solid content is 30%), methyl silicone resin (solid content is 50%, Jilin Donghu Organic Silicon Co., Ltd., DH-1), Toluene, oxalic acid and silane coupling agent KH560 were mixed for 50 minutes to obtain the sizing agent.

Embodiment 3

[0046] A sizing agent for mica boards, which comprises the following components in parts by weight:

[0047]

[0048] The preparation method of the sizing agent provided in this embodiment includes: nano-silica sol (solid content is 30%), methyl silicone resin (solid content is 50%, Jilin Donghu Organic Silicon Co., Ltd., DH-1), Toluene, oxalic acid and silane coupling agent KH560 were mixed for 70 minutes to obtain the sizing agent.

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Abstract

The invention provides a sizing agent for a mica plate as well as a preparation method and application of the sizing agent. The sizing agent comprises a combination of nano silicon dioxide sol, methyl silicone resin, methylbenzene and oxalic acid in specific parts. A specific part of nano silicon dioxide sol is added into the sizing agent, and the surface of the nano silicon dioxide sol contains rich silicon hydroxyl functional groups which can participate in a condensation reaction of methyl silicone resin, so that the chemical crosslinking density of the sizing agent is improved, and meanwhile, physical crosslinking points in the sizing agent are increased; therefore, by adopting the sizing agent containing the specific components, the mica plate with excellent high-temperature fire resistance and excellent mechanical properties can be prepared.

Description

technical field [0001] The invention belongs to the technical field of mica board preparation, and in particular relates to a sizing agent for mica board and its preparation method and application. Background technique [0002] Mica has typical high resistance properties, and is currently widely used in a wide range of electrical and electromechanical fields. The finished products of mica materials include mica paper, mica board, and mica powder. At present, the production method of traditional mica board includes: firstly, using a hydraulic pulper to break and dissociate mica sheets into certain fine scales, then dilute the slurry and process the mica scales into mica paper by sizing and papermaking, and then use mica The paper is coated with organic adhesive and passed through the tunnel dryer to remove the solvent to obtain a single sheet of glue-coated mica paper with a thickness of 0.05-0.08mm. Press molding to obtain a mica plate. [0003] CN112408939A discloses a mi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J183/04C09J11/04C09J11/06C09J7/20H01M10/658
CPCC09J183/04C09J11/04C09J11/06C09J7/20H01M10/658C08K2201/011C09J2301/122C09J2400/10C08K3/36C08K5/09Y02E60/10
Inventor 王亚明许向阳张小宾
Owner GOODE EIS SUZHOU CORP LTD
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