Carbon fiber resin-based composite material and preparation method thereof

A technology of carbon fiber resin-based and composite materials, which is applied in the field of carbon fiber resin-based composite materials and can solve problems such as failure of composite materials
CN112679763APending Publication Date: 2021-04-20LINGNAN NORMAL UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
LINGNAN NORMAL UNIV
Publication Date
2021-04-20

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Abstract

The invention provides a carbon fiber resin-based composite material and a preparation method thereof, and belongs to the technical field of carbon fiber resin-based composite materials. The preparation method of the carbon fiber resin-based composite material comprises the following steps: mixing carbon fibers and an acid reagent, and carrying out surface oxidation treatment to obtain oxidized carbon fibers; mixing the oxidized carbon fiber with thionyl chloride, and carrying out surface acylating chlorination treatment to obtain acylating chlorinated carbon fiber; in subcritical water, mixing the acylating chlorination carbon fiber, a melamine solution and a condensing agent, and grafting to obtain a modified carbon fiber; mixing the epoxy group-containing resin matrix, carboxyl-terminated nitrile rubber, a curing agent and a coupling agent, and modifying to obtain modified resin; and infiltrating a carbon fiber bundle formed by the modified carbon fibers into the molten modified resin, and curing to obtain the carbon fiber resin-based composite material. The carbon fiber resin-based composite material prepared by the invention has excellent impact resistance and aging resistance.
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Description

technical field

[0001] The invention relates to the technical field of carbon fiber resin-based composite materials, in particular to a carbon fiber resin-based composite material and a preparation method thereof. Background technique

[0002] Due to its excellent advantages of high strength and low quality, carbon fiber reinforced composite materials are widely used in aerospace, military, chemical and other manufacturing fields. Carbon fiber is a fibrous polymer carbon formed by carbonizing organic fibers at high temperatures in an inert atmosphere. It is an inorganic non-metallic material with a carbon content of more than 90%. Carbon fiber has excellent properties such as light weight, high specific strength, high specific rigidity, high modulus, and good chemical stability. It is widely used as a reinforcement in the field of resin-based composite materials.

[0003] Epoxy resin matrix is ​​conducive to the preparation of composite materials, which can further improve ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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