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Anti-aging carbon fiber modified epoxy resin composite and preparation method thereof

A technology of epoxy resin and composite materials, which is applied in the field of composite materials, can solve the problems of easy aging and other problems, and achieve the effects of harmlessness to human body and environment, reduced preparation cost and low equipment requirements

Inactive Publication Date: 2016-07-27
HUZHOU NEW AOKE CHEM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in real life, it is prone to aging due to the influence of heat, humidity, smoke and other external environments.

Method used

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  • Anti-aging carbon fiber modified epoxy resin composite and preparation method thereof
  • Anti-aging carbon fiber modified epoxy resin composite and preparation method thereof
  • Anti-aging carbon fiber modified epoxy resin composite and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] The raw materials are as follows:

[0032] epoxy resin

carbon fiber

pumice powder

KH550

Sodium silicate

Accelerator

30 copies

2 copies

1 copy

0.8 parts

1 copy

0.5 parts

[0033] Its preparation method comprises the following steps:

[0034] (1) Mix and stir the carbon fiber and ethanol solution evenly, ultrasonicate at 500W for 30 minutes, continue to add pumice powder and KH550, and ultrasonically disperse for 1 hour to obtain a mixed dispersion;

[0035] (2) Add epoxy resin to the mixed dispersion liquid obtained in step (1), ultrasonically disperse for 50 minutes, and then remove the solvent by a rotary evaporator at 50°C. After the solvent evaporates, add sodium silicate and accelerator, and stir to mix homogeneous, and then put the mixture into a vacuum drying oven for vacuum degassing to obtain a mixed solution;

[0036] (3) Add the mixed liquid obtained in step (2) into a stainless steel mold, put ...

Embodiment 2

[0038] The raw materials are as follows:

[0039] epoxy resin

carbon fiber

pumice powder

KH550

Sodium silicate

Accelerator

50 copies

5 copies

3 copies

1.5 servings

2 copies

2 copies

[0040] Its preparation method comprises the following steps:

[0041] (1) Mix and stir the carbon fiber and ethanol solution evenly, ultrasonicate at 800W for 50min, continue to add pumice powder and KH550, and ultrasonically disperse for 2h to obtain a mixed dispersion;

[0042] (2) Add epoxy resin to the mixed dispersion obtained in step (1), ultrasonically disperse for 60 minutes, and then remove the solvent by a rotary evaporator at 60°C. After the solvent evaporates, add sodium silicate and accelerator, and stir to mix homogeneous, and then put the mixture into a vacuum drying oven for vacuum degassing to obtain a mixed solution;

[0043] (3) Add the mixed liquid obtained in step (2) into a stainless steel mold, put it into a...

Embodiment 3

[0045] The raw materials are as follows:

[0046]

[0047] Its preparation method comprises the following steps:

[0048] (1) Mix and stir the carbon fiber and ethanol solution evenly, ultrasonicate for 35min at 600W power, continue to add pumice powder and KH550, and ultrasonically disperse for 1.2h to obtain a mixed dispersion;

[0049] (2) Add epoxy resin to the mixed dispersion obtained in step (1), ultrasonically disperse for 55 minutes, and then remove the solvent by a rotary evaporator at 55°C. After the solvent evaporates, add polyacrylamide and accelerator, and stir to mix homogeneous, and then put the mixture into a vacuum drying oven for vacuum degassing to obtain a mixed solution;

[0050] (3) Add the mixed solution obtained in step (2) into a stainless steel mold, put it into a flat vulcanizer at 160° C., and cure for 1.2 hours to obtain an anti-aging carbon fiber modified epoxy resin composite material.

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Abstract

The invention aims to provide an anti-aging carbon fiber modified epoxy resin composite. The composite is prepared from components in parts by weight as follows: 2-5 parts of carbon fibers, 30-50 parts of epoxy resin, 1-3 parts of pumice powder, 0.8-1.5 parts of a crosslinking agent, 1-2 parts of a curing agent and 0.5-2 parts of an accelerator. The invention further discloses a preparation method of the composite. The composite is excellent in mechanical property, anti-wear, good in high-temperature resistance and high in shock resistance and has certain ageing resistance, the preparation method is simple, and the process condition is mild.

Description

Technical field: [0001] The invention relates to the technical field of composite materials, in particular to an anti-aging carbon fiber modified epoxy resin composite material. Background technique: [0002] Epoxy resins refer to organic compounds containing two or more epoxy groups in their molecules. Except for a few, their relative molecular weights are not high. The molecular structure of epoxy resin is characterized by active epoxy groups in the molecular chain, and the epoxy groups can be located at the end, middle or ring structure of the molecular chain. Due to the active epoxy groups in the molecular structure, they can undergo cross-linking reactions with various types of curing agents to form insoluble polymers with a three-way network structure. The cured epoxy resin has good physical and mechanical properties. The epoxy resin has strong cohesion and compact molecular structure, which makes it have excellent mechanical properties. It contains highly active epox...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L63/00C08K7/06C08K7/26C08K5/544
CPCC08K7/06C08K5/544C08K7/26C08K2201/003C08K2201/011
Inventor 严连庆
Owner HUZHOU NEW AOKE CHEM CO LTD