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A kind of preparation method of bamboo carbon fiber epoxy resin composite material

A technology of epoxy resin and bamboo carbon fiber, which is applied in the field of composite materials, can solve the problems of large internal stress, high brittleness of composite materials, and poor impact toughness, so as to improve tensile strength and toughness, enhance load transmission, and prevent embedding and cutting effect

Active Publication Date: 2021-03-02
安徽省科晟生态木装饰材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the high crosslinking density of epoxy resin after curing, there are problems such as large internal stress, hard and brittle texture, and poor impact resistance, resulting in greater brittleness of the composite material and poor impact toughness, which limits the use of epoxy resin-based bamboo carbon fiber composites. Applications in high-tech fields

Method used

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  • A kind of preparation method of bamboo carbon fiber epoxy resin composite material
  • A kind of preparation method of bamboo carbon fiber epoxy resin composite material

Examples

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Effect test

Embodiment 1

[0018] A preparation method of bamboo carbon fiber epoxy resin composite material, said method comprises the steps of: mixing and stirring bamboo carbon fiber, hollow microspheres, graphene oxide, curing agent and molten epoxy resin, and drying the mixture in a vacuum oven After defoaming, it is poured into a mold, cooled to room temperature after solidification and released from the mold; the graphene oxide is graphene oxide modified by a silane coupling agent.

Embodiment 2

[0020] A preparation method of bamboo carbon fiber epoxy resin composite material, said method comprises the steps of: mixing and stirring bamboo carbon fiber, hollow microspheres, graphene oxide, curing agent and molten epoxy resin, and drying the mixture in a vacuum oven After defoaming, it is poured into a mold, cooled to room temperature after solidification and released from the mold; the graphene oxide is a silane coupling agent modified graphene oxide;

[0021] Wherein, the curing temperature is 78° C., and the curing time is 4.5 hours.

Embodiment 3

[0023] A preparation method of bamboo carbon fiber epoxy resin composite material, said method comprises the steps of: mixing and stirring bamboo carbon fiber, hollow microspheres, graphene oxide, curing agent and molten epoxy resin, and drying the mixture in a vacuum oven After defoaming, it is poured into a mold, cooled to room temperature after solidification and released from the mold; the graphene oxide is a silane coupling agent modified graphene oxide;

[0024] Wherein, the curing temperature is 80°C and the time is 4.5h;

[0025] The preparation method of the modified graphene oxide is as follows: after adjusting the pH value of absolute ethanol to 5, adding a silane coupling agent KH-560, stirring for 10 minutes to prepare a modified liquid; adding graphene oxide to the modified liquid, Ultrasonic dispersion to obtain the reactant; placing the reactant in a water bath for mechanical stirring, cooling to room temperature, washing to neutrality, suction filtration, and ...

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Abstract

The invention relates to the technical field of composite materials, in particular to a preparation method of bamboo carbon fiber epoxy resin composite material, said method comprising the following steps: combining bamboo carbon fiber, hollow microspheres, graphene oxide, curing agent and molten epoxy The resin is mixed and stirred evenly, poured into a mold after defoaming in a vacuum oven, cooled to room temperature after solidification and released from the mold; the graphene oxide is graphene oxide modified by a silane coupling agent. The invention has excellent mechanical properties and wear resistance.

Description

technical field [0001] The invention relates to the technical field of composite materials, in particular to a preparation method of a bamboo carbon fiber epoxy resin composite material. Background technique [0002] Bamboo carbon fiber is made of moso bamboo as raw material, and adopts a new calcination process and new technology of pure oxygen high temperature and nitrogen barrier delay, which makes the micropores inherent in bamboo charcoal more refined and honeycombed, and then combined with the trend of honeycomb microporous structure It is made by melt spinning polyester modified chips. [0003] At present, in the modern composite material industry, epoxy resin-based bamboo carbon fiber composite materials have been widely used in various fields of the national economy. Due to the high crosslinking density of epoxy resin after curing, there are problems such as large internal stress, hard and brittle texture, and poor impact resistance, resulting in greater brittlenes...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08K13/06C08L63/00C08K7/06C08K9/06C08K3/04
CPCC08K7/06C08K9/06C08K13/06C08K3/042C08L63/00
Inventor 吴万水
Owner 安徽省科晟生态木装饰材料有限公司