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Insulating material with high glass transition temperature and high-temperature cohesiveness and preparation method of insulating material

A transition temperature, high vitrification technology, applied in polymer adhesive additives, non-polymer adhesive additives, adhesives, etc., can solve the problems that the electrical industry cannot meet the requirements, reduce curing time, improve high temperature viscosity The effect of improving junction and physical and mechanical properties

Active Publication Date: 2019-01-18
安徽众博新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The glass transition temperature of the traditional epoxy anhydride system insulation is generally within 130 degrees. Although it has a high glass transition temperature, it obviously cannot meet the requirements of the growing electrical industry.

Method used

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  • Insulating material with high glass transition temperature and high-temperature cohesiveness and preparation method of insulating material
  • Insulating material with high glass transition temperature and high-temperature cohesiveness and preparation method of insulating material
  • Insulating material with high glass transition temperature and high-temperature cohesiveness and preparation method of insulating material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Preparation of dispersant: Add 30g of carboxymethyl cellulose to an appropriate amount of deionized water, stir at room temperature until completely dissolved; adjust the pH of the solution to 5-6 with 10% acetic acid solution, then add 1g of ferrocene and 20g of tartaric acid , heated up to 70°C and stirred for 2 hours, and an oily substance appeared in the reaction system; cooled to 35°C, added 2g of sodium chloride and 2g of sodium glycocholate and stirred for 0.5h; cooled to room temperature, separated the oily substance, evaporated and crystallized to obtain carboxylate Methylcellulose / Tartrate.

[0035] Preparation of insulating material:

[0036] (1) Preparation of modified resin composition: Add 70g of Huntsman's four-functional epoxy resin into a high-speed dispersion storage tank, preheat to 80°C; then add 10g of Huntsman's organosilicon epoxy resin, 10g of phenolic resin 10g of polyurethane modified epoxy resin SL3451, stirred and mixed at 400r / min for 1h, c...

Embodiment 2

[0041] Preparation of dispersant: Add 35g of carboxymethyl cellulose to an appropriate amount of deionized water, stir at room temperature until completely dissolved; adjust the pH of the solution to 5-6 with 10% acetic acid solution, then add 1g of ferrocene and 22g of tartaric acid , heated up to 70°C and stirred for 2 hours, and an oily substance appeared in the reaction system; cooled to 35°C, added 2g of sodium chloride and 2g of sodium glycocholate and stirred for 0.5h; cooled to room temperature, separated the oily substance, evaporated and crystallized to obtain carboxylate Methylcellulose / Tartrate.

[0042] Preparation of insulating material:

[0043] (1) Preparation of modified resin composition: Add 70g of Huntsman's four-functional epoxy resin into a high-speed dispersion storage tank, preheat to 80°C; then add 10g of Huntsman's organosilicon epoxy resin, 10g of phenolic resin 10g of polyurethane modified epoxy resin SL3451, stirred and mixed at 400r / min for 1h, c...

Embodiment 3

[0061] Based on Example 2, a comparative example 1 using an acrylate dispersant and a comparative example 2 without modifying the metal silicon powder are set.

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Abstract

The invention discloses an insulating material with high glass transition temperature and high-temperature cohesiveness and a preparation method of the insulating material and relates to the technicalfield of insulating materials. The insulating material is obtained through reaction of resin composition and a curing agent composition, wherein the resin composition comprises four-functional-groupepoxy resin, organosilicon epoxy resin, phenolic resin, polyurethane modified epoxy resin and a dispersant; the curing agent composition comprises pyromellitic dianhydride, a toughening agent and a compound accelerator. Metal silicon powder is also modified, the affinity of the silicon powder for resin is enhanced, and the physical performance and glass transition temperature of the insulating material are improved.

Description

Technical field: [0001] The invention relates to the technical field of insulating materials, in particular to an insulating material with high glass transition temperature and high-temperature adhesiveness and a preparation method thereof. Background technique: [0002] The glass transition temperature of the traditional epoxy anhydride system insulation is generally within 130 degrees. Although it has a relatively high glass transition temperature, it obviously cannot meet the requirements of the growing electrical industry. According to the demand of the market, we improved the formula and process of the traditional epoxy anhydride system insulation, and provided an insulation material with a high glass transition temperature and excellent high-temperature bonding performance, and its glass transition temperature can reach above 160 degrees , can fully meet the current development needs of electric power. Invention content: [0003] The technical problem to be solved b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J163/00C09J11/04C09J11/06C09J11/08
CPCC08K2003/023C08L2205/025C08L2205/035C09J11/04C09J11/06C09J11/08C09J163/00C08L63/00C08L61/06C08L1/286C08K9/04C08K9/06C08K3/02C08K5/092
Inventor 周鑫王丰收
Owner 安徽众博新材料有限公司
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