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Synthesis and application of epoxy resin nano modifier

A nano-modifier and epoxy resin technology, applied in the field of epoxy resin, can solve the problems of insulation material breakdown, aggravate the aging process of insulation materials, easy aging and decomposition of epoxy resin insulation materials, etc., and achieve high breakdown field strength , Overcoming the effect of easy aging and excellent thermal conductivity

Pending Publication Date: 2021-03-30
嘉兴屹飞材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the deficiencies of the prior art, the present invention provides the synthesis and application of an epoxy resin nano-modifier, which solves the problem that the epoxy resin insulating material is easy to age and decompose, which eventually leads to the shock of the insulating material under the joint action of the electric field and the thermal field. Potential defects inside the organic insulating material, such as cracks, gaps, holes, etc., will exacerbate the problem of the aging process of the insulating material

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] The embodiment of the present invention provides a synthesis of epoxy resin nano-modifier, comprising the following composition in parts by weight: 90 parts of epoxy resin, 0.5 parts of nano-strontium titanate, 30 parts of ethanol, 0.03 parts of silane coupling agent, 20 parts of curing agent share.

[0028] A kind of synthesis of epoxy resin nano-modifier also comprises following preparation steps:

[0029] S1. Place the nano-strontium titanate in a vacuum drying oven for vacuum drying to remove the moisture on the surface of the nano-strontium titanate;

[0030] S2. Weigh quantitative anhydrous ethanol and silane coupling agent, then drop silane coupling agent into ethanol for pre-hydrolysis, the hydrolysis time is 1h, enter to obtain mixed solution;

[0031] S3. Add dried nano-strontium titanate to the mixed solution in S2, perform ultrasonic treatment, and then continue to stir and mix at 50° C. for 8 hours, so that the mixed solution of the two is uniformly disper...

Embodiment 2

[0042] The embodiment of the present invention provides a synthesis of epoxy resin nano-modifier, including the following components by weight: 100 parts of epoxy resin, 1 part of nano-strontium titanate, 40 parts of ethanol, 0.04 parts of silane coupling agent, 30 parts of curing agent share.

[0043] A kind of synthesis of epoxy resin nano-modifier also comprises following preparation steps:

[0044] S1. Place the nano-strontium titanate in a vacuum drying oven for vacuum drying to remove the moisture on the surface of the nano-strontium titanate;

[0045] S2. Weigh quantitative anhydrous ethanol and silane coupling agent, then drop silane coupling agent into ethanol for pre-hydrolysis, the hydrolysis time is 0.5h, enter to obtain mixed solution;

[0046] S3. Add dried nano-strontium titanate to the mixed solution in S2, perform ultrasonic treatment, and then continue to stir and mix at 70° C. for 5 hours, so that the mixed solution of the two is uniformly dispersed to obta...

Embodiment 3

[0057] The embodiment of the present invention provides a synthesis of epoxy resin nano-modifier, including the following composition in parts by weight: 110 parts of epoxy resin, 1.5 parts of nano-strontium titanate, 50 parts of ethanol, 0.06 parts of silane coupling agent, 50 parts of curing agent share.

[0058] A kind of synthesis of epoxy resin nano-modifier also comprises following preparation steps:

[0059] S1. Place the nano-strontium titanate in a vacuum drying oven for vacuum drying to remove the moisture on the surface of the nano-strontium titanate;

[0060] S2. Weigh quantitative anhydrous ethanol and silane coupling agent, then drop silane coupling agent into ethanol for pre-hydrolysis, the hydrolysis time is 2h, enter to obtain mixed solution;

[0061] S3. Add dried nano-strontium titanate to the mixed solution in S2, perform ultrasonic treatment, and then continue to stir and mix at 80° C. for 4 hours, so that the mixed solution of the two is uniformly disperse...

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Abstract

The invention provides synthesis and application of an epoxy resin nano modifier, and relates to the field of epoxy resin. The synthesis of the epoxy resin nano modifier comprises the following components in parts by weight: 90-110 parts of epoxy resin, 0.5-1.5 parts of nano strontium titanate, 30-50 parts of ethanol, 0.03-0.06 part of a silane coupling agent and 20-50 parts of a curing agent. Thesilane coupling agent is grafted and coated with the nano strontium titanate powder under the combined action of ultrasonic oscillation and heat, wherein the strontium titanate has very high dielectricity, relatively strong piezoelectricity and a large electromechanical coupling coefficient. The modified nano filler can solve the problem of relatively poor dispersity of strontium titanate powderin a polymer matrix, and meanwhile, the thermal conductivity of the polymer is improved, and more importantly, the defects that a common epoxy resin insulating material is easy to age and low in breakdown field intensity are overcome.

Description

technical field [0001] The invention relates to the technical field of epoxy resin, in particular to the synthesis and application of an epoxy resin nano-modifier. Background technique [0002] Epoxy resin has excellent electrical properties and electrothermal stability, and is widely used as an insulating material for various electrical equipment. Due to the inevitable local defects in the assembly process of power equipment, the epoxy resin insulation material is easy to age and decompose, which eventually leads to the breakdown of the insulation material under the combined action of electric field and thermal field. Moreover, potential defects inside the organic insulating material, such as cracks, gaps, holes, etc., will aggravate the aging process of the insulating material. Therefore, nano-inorganic particles are often used to improve the thermal conductivity of insulating materials and at the same time enhance the breakdown field strength of insulating materials. Ho...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L63/00C08K9/10C08K3/22
CPCC08K9/10C08K3/22C08K2201/011C08K2003/2237C08L2203/20C08L63/00
Inventor 刘强
Owner 嘉兴屹飞材料科技有限公司
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