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High-strength epoxy insulator material and preparation method thereof

An epoxy insulation and high-strength technology, applied in the field of insulator materials, can solve the problems of high brittleness and poor toughness, and achieve the effects of improved toughness, good thermal stability and excellent electrical insulation performance.

Inactive Publication Date: 2018-01-26
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

Epoxy resin materials have been widely used as insulator materials due to their excellent electrical insulation and temperature resistance. However, epoxy resin cured products have the disadvantages of poor toughness and high brittleness, and further research and development work is needed

Method used

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  • High-strength epoxy insulator material and preparation method thereof
  • High-strength epoxy insulator material and preparation method thereof
  • High-strength epoxy insulator material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] A high-strength epoxy insulator material is obtained by reacting a modified resin composition and a curing agent composition, and the modified resin composition includes the following raw materials in parts by weight:

[0031]

[0032] The curing agent composition comprises the following raw materials in parts by weight:

[0033] 82 parts of methyl hexahydrophthalic anhydride;

[0034] 36 parts of maleic anhydride;

[0035] Toughening agent hyperbranched polyether 12 parts.

[0036] The preparation method comprises the following steps:

[0037] (1) Preparation of modified resin composition: add 3,4-epoxycyclohexylmethyl-3', 4'epoxycyclohexyl carboxylate into the reaction kettle, preheat to 55°C; add novolac epoxy Resin, heat up to 72°C; add polypropylene glycol diglycidyl ether and toughening agent hyperbranched polyether in sequence, stir and mix at a speed of 300r / min, heat up to 90°C, continue stirring for 40min, and vacuum defoam to obtain a resin composition;...

Embodiment 2

[0041] A high-strength epoxy insulator material is obtained by reacting a modified resin composition and a curing agent composition, and the modified resin composition includes the following raw materials in parts by weight:

[0042]

[0043] The curing agent composition comprises the following raw materials in parts by weight:

[0044] 80 parts of methyl hexahydrophthalic anhydride;

[0045] 25 parts of maleic anhydride;

[0046] 9 parts of toughening agent oligomer glycol.

[0047] The preparation method comprises the following steps:

[0048] (1) Preparation of modified resin composition: add 3,4-epoxycyclohexylmethyl-3', 4'epoxycyclohexyl carboxylate into the reaction kettle, preheat to 52°C; add novolac epoxy Resin, heat up to 76°C; add polypropylene glycol diglycidyl ether and toughening agent nano-zinc oxide in sequence, stir and mix at a speed of 280r / min, heat up to 88°C, continue stirring for 42min, and vacuum defoam to obtain a resin composition;

[0049] (2)...

Embodiment 3

[0052] A high-strength epoxy insulator material is obtained by reacting a modified resin composition and a curing agent composition, and the modified resin composition includes the following raw materials in parts by weight:

[0053]

[0054] The curing agent composition comprises the following raw materials in parts by weight:

[0055] 82 parts of methyl hexahydrophthalic anhydride;

[0056] 35 parts of maleic anhydride;

[0057] Toughening agent aromatic polycarboxylic acid 13 parts.

[0058] The preparation method comprises the following steps:

[0059] (1) Preparation of modified resin composition: add 3,4-epoxycyclohexylmethyl-3', 4'epoxycyclohexyl carboxylate into the reaction kettle, preheat to 60°C; add novolac epoxy Resin, heat up to 80°C; add polypropylene glycol diglycidyl ether and toughening agent nano-silica in sequence, stir and mix at 400r / min, heat up to 90°C, continue stirring for 50min, and vacuum defoam to obtain a resin composition;

[0060] (2) Pre...

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Abstract

The invention discloses a high-strength epoxy insulator material and a preparation method thereof and relates to the technical field of insulator materials. The high-strength epoxy insulator materialdisclosed by the invention is prepared by reacting a modified resin composition and a curing agent composition, wherein the modified resin composition comprises 60-80 parts of 3,4-epoxy cyclohexylmethyl-3', 4'-epoxy cyclohexyl carboxylate ester, 40-70 parts of novolac epoxy resin, 10-30 parts of polypropylene glycol diglycidyl ether and 6-20 parts of a flexibilizer A; and the curing agent composition comprises methylhexahydrophthalic anhydride, maleic anhydride and a flexibilizer B. The preparation method comprises the following steps: preparing the modified resin composition, preparing the curing agent composition, and performing APG injection molding. The insulator material disclosed by the invention has excellent impact strength, bending strength, impact strength and elongation at break, is heat-resistant and flame retardant and can be widely applied to the field of materials for machine electricity and electric appliances.

Description

Technical field: [0001] The invention relates to the technical field of insulator materials, in particular to a high-strength epoxy insulator material and a preparation method thereof. Background technique: [0002] Insulators are special insulation controls that can play an important role in overhead transmission lines. Insulators should not fail due to various electromechanical stresses caused by changes in environmental and electrical load conditions, otherwise the insulator will fail and damage the service and operating life of the entire line. Therefore, the electrical insulation, mechanical properties, weather resistance, chemical corrosion resistance and other properties of insulator materials directly affect the quality and operation status of insulators. Generally, according to the manufacturing materials, they are divided into porcelain insulators, glass insulators and epoxy resin insulators. Epoxy resin materials have been widely used as insulator materials due ...

Claims

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Application Information

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IPC IPC(8): C08L63/00C08L63/04C08L71/00C08K3/22C08K3/36C08K5/092C08G59/42
Inventor 高桂林周鑫
Owner 安徽众博新材料有限公司
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