Glass fiber/carbon nanotube co-modified epoxy composite and preparation method thereof

A technology of carbon nanotubes and glass fibers, which is applied in the field of preparation of the above-mentioned glass fibers and carbon nanotubes co-modified epoxy composite materials, which can solve the problems of ineffective improvement of thermal conductivity, affecting the performance of composite materials, and difficulty in dispersion , to achieve the effect of improving the bonding strength of the interface, improving the thermal conductivity, and ensuring the electrical insulation of the busbar

Active Publication Date: 2017-11-10
XIAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Studies have shown that a small amount of carbon nanotubes can improve the mechanical, electrical, and optical properties of epoxy resin products to varying degrees, but the effect of improving thermal conductivity is not obvious; excessive thermal conductivity can be greatly improved, but at the expense of insulation At the cost, and there are problems such as difficulty in dispersion and easy agglomeration, which will affect the performance of composite materials
Glass fibers have the advantages of high mechanical strength, good electrical insulation, low price, and wide sources. They are often used as epoxy polymer fillers to improve their strength and electrical insulation properties. However, there are few research reports on their thermal conductivity.

Method used

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  • Glass fiber/carbon nanotube co-modified epoxy composite and preparation method thereof
  • Glass fiber/carbon nanotube co-modified epoxy composite and preparation method thereof
  • Glass fiber/carbon nanotube co-modified epoxy composite and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0048] Glass fiber, carbon nanotube co-modified epoxy composite material is composed of the following components: for every 100g of epoxy resin, add 0.2g of carbon nanotube, 10g of glass fiber, 80g of curing agent, 0.1g of accelerator and 20g of coupling agent .

[0049] The preparation method of the above-mentioned glass fiber and carbon nanotube co-modified epoxy composite material is specifically implemented according to the following steps:

[0050] Step 1, weigh the following components epoxy resin 100g, carbon nanotube 0.2g, glass fiber 10g, curing agent 80g, accelerator 0.1g and coupling agent 20g according to the mass ratio;

[0051] Step 2, carrying out surface acidification treatment to the carbon nanotubes weighed in step 1; specifically:

[0052] Step 2.1, the purity is 98wt% H 2 SO 4 With a purity of 68wt% HNO 3 Mix according to the volume ratio of 3:1 to obtain the mixed solution A;

[0053] In step 2.2, put the carbon nanotubes weighed in step 1 into the mi...

Embodiment 2

[0058] Glass fiber, carbon nanotube co-modified epoxy composite material is composed of the following components: for every 100g of epoxy resin, add 0.2g of carbon nanotube, 15g of glass fiber, 80g of curing agent, 0.1g of accelerator and 20g of coupling agent .

[0059] The preparation method of the above-mentioned glass fiber and carbon nanotube co-modified epoxy composite material is specifically implemented according to the following steps:

[0060] Step 1, weigh the following components epoxy resin 100g, carbon nanotube 0.2g, glass fiber 15g, curing agent 80g, accelerator 0.1g and coupling agent 20g according to the mass ratio;

[0061] Step 2, carrying out surface acidification treatment to the carbon nanotubes weighed in step 1; specifically:

[0062] Step 2.1, the purity is 98wt% H 2 SO 4 With a purity of 68wt% HNO 3 Mix according to the volume ratio of 3:1 to obtain the mixed solution A;

[0063] In step 2.2, put the carbon nanotubes weighed in step 1 into the mi...

Embodiment 3

[0068] The glass fiber and carbon nanotube co-modified epoxy composite material is composed of the following components: for every 100g of epoxy resin, add 0.2g of carbon nanotube, 15g of glass fiber, 80g of curing agent, 0.1g of accelerator and 20g of coupling agent.

[0069] The preparation method of the above-mentioned glass fiber and carbon nanotube co-modified epoxy composite material is specifically implemented according to the following steps:

[0070] Step 1, weigh the following components epoxy resin 100g, carbon nanotube 0.2g, glass fiber 20g, curing agent 80g, accelerator 0.1g and coupling agent 20g according to the mass ratio;

[0071] Step 2, carrying out surface acidification treatment to the carbon nanotubes weighed in step 1; specifically:

[0072] Step 2.1, the purity is 98wt% H 2 SO 4 With a purity of 68wt% HNO 3 Mix according to the volume ratio of 3:1 to obtain the mixed solution A;

[0073] In step 2.2, put the carbon nanotubes weighed in step 1 into t...

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Abstract

The invention discloses a glass fiber/carbon nanotube co-modified epoxy composite. The composite is composed of, on the basis of 100 g of epoxy resin, 0.2 g of carbon nanotubes, 10-40 g of glass fibers, 80 g of a curing agent, 0.1 g of an accelerator and 20 g of a coupling agent. The glass fiber/carbon nanotube co-modified epoxy composite has both electrical isolation properties and improved thermal conductivity. The invention also discloses a preparation method for the glass fiber/carbon nanotube co-modified epoxy composite.

Description

technical field [0001] The invention belongs to the technical field of epoxy composite materials, and relates to a glass fiber and carbon nanotube co-modified epoxy composite material, and also relates to a preparation method of the glass fiber and carbon nanotube co-modified epoxy composite material. Background technique [0002] As the capacity of generator sets and transformers in the power system continues to increase, the rated current flowing through the motor coil and the outlet busbar also increases. As an important carrier of electric energy transmission and distribution, the busbar will generate a lot of heat under the condition of high rated current operation. If the heat is not dissipated in time, the insulation layer of the busbar will continue to be affected by high temperature and accelerate aging, which will affect its service life. May cause electrical safety accidents. Therefore, the development and research of various new insulating and heat-conducting ma...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L63/00C08K9/02C08K7/14C08K7/24C09K5/14
CPCC08K7/14C08K7/24C08K9/02C08K2201/003C08K2201/004C08K2201/011C09K5/14C08L63/00
Inventor 杨国清寇长珍崔俊达黎洋王德意
Owner XIAN UNIV OF TECH
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