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Preparation method for lightweight high-strength carbon fiber composite material

A composite material and carbon fiber technology, which is applied in the field of preparation of light-weight and high-strength carbon fiber composite materials, can solve problems such as poor mechanical properties, and achieve the effects of improving mechanical properties, improving adsorption properties, and enhancing interface bonding

Pending Publication Date: 2019-10-29
徐华
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The technical problem mainly solved by the present invention is: Aiming at the problem of poor mechanical properties of traditional light-weight high-strength carbon fiber composite materials, a preparation method of light-weight high-strength carbon fiber composite materials is provided

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0029] In parts by weight, take 20 parts of graphene oxide, 5 parts of chitosan, and 150 parts of water successively, and ultrasonically disperse after mixing to obtain a dispersion; 140°C, the air outlet temperature is 80°C, spray granulation to obtain pretreated graphene oxide powder; the pretreated graphene oxide powder and hydrazine hydrate solution with a mass fraction of 55% are heated and stirred for reduction reaction, Filtrate, wash and dry to obtain modified graphene oxide; put (N-amidino) dodecyl acrylamide and methoxypolyethylene glycol at a mass ratio of 2:1 in beaker No. 1, and pour to 1 Add p-dichlorobenzene with 0.2 times the quality of methoxypolyethylene glycol and ferrocene with 0.10 times the quality of methoxypolyethylene glycol in the beaker, and stir and mix for 50min under the condition of 500r / min at a rotating speed, to obtain Modified additive; by weight, 3 parts of glucose, 3 parts of fructose, 2 parts of glycerin, 2 parts of polyethylene glycol, an...

example 2

[0031] Put (N-amidino) dodecyl acrylamide and methoxy polyethylene glycol in the No. 1 beaker at a mass ratio of 2:1, and add 0.2 methoxy polyethylene glycol to the No. 1 beaker times of p-dichlorobenzene and ferrocene of 0.10 times of the quality of methoxypolyethylene glycol, under the condition of 500r / min, stirring and mixing for 50min to obtain the modified additive; in parts by weight, 3 parts Glucose, 3 parts of fructose, 2 parts of glycerin, 2 parts of polyethylene glycol, and 30 parts of water are placed in a No. 2 beaker, and stirred and mixed for 60 minutes at a speed of 300 r / min to obtain a nutrient solution; sepiolite and Hydrochloric acid with a mass fraction of 30% was placed in a single-necked flask at a mass ratio of 1:20, and the single-necked flask was placed in a digital speed measuring constant temperature magnetic stirrer, and the temperature was 80°C and the rotation speed was 500r / min. Stir the reaction After 2 hours, filter to obtain the filter residu...

example 3

[0033] Put (N-amidino) dodecyl acrylamide and methoxy polyethylene glycol in the No. 1 beaker at a mass ratio of 2:1, and add 0.2 methoxy polyethylene glycol to the No. 1 beaker times of p-dichlorobenzene and ferrocene of 0.10 times of the quality of methoxypolyethylene glycol, under the condition of 500r / min, stirring and mixing for 50min to obtain the modified additive; in parts by weight, 3 parts Glucose, 3 parts of fructose, 2 parts of glycerin, 2 parts of polyethylene glycol, and 30 parts of water were placed in a No. 2 beaker, and stirred and mixed for 60 minutes at a speed of 300 r / min to obtain a nutrient solution; 35% nitric acid was placed in a reaction kettle at a mass ratio of 1:20, stirred, mixed and soaked for 5 hours at a rotating speed of 600r / min, then filtered to obtain No. 1 filter cake, and then 30% ammonia water was used to No. 1 filter cake is washed until the washing liquid is neutral, and the primary treatment carbon fiber is obtained; in parts by weigh...

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Abstract

The invention discloses a preparation method for a lightweight high-strength carbon fiber composite material, belonging to the technical field of polymer materials. The preparation method of the invention comprises the following steps: subjecting carbon fibers and nitric acid to mixing, soaking, filtering and washing successively to obtain preliminarily treated carbon fibers; subjecting the preliminarily treated carbon fibers, a modifying additive, biogas slurry, a nutrient solution and deionized water to stirring, mixed fermentation, filtering and drying so as to obtain secondarily treated carbon fibers; subjecting the secondarily treated carbon fibers and ethyl orthosilicate to mixing under stirring, filtering, drying, stepwise heating, high-temperature treatment and cooling successivelyso as to obtain modified carbon fibers; and subjecting epoxy resin, a diluent, the modified carbon fibers, greasy filth, a silane coupling agent, a curing agent and modified sepiolite to mixing understirring, injection molding, hot press forming and demoulding successively so as to obtain the lightweight high-strength carbon fiber composite material. The lightweight high-strength carbon fiber composite material provided by the invention has excellent mechanical properties.

Description

technical field [0001] The invention discloses a method for preparing a lightweight high-strength carbon fiber composite material, which belongs to the technical field of polymer materials. Background technique [0002] High-strength and lightweight composite materials can not only be used in the field of oil and gas pipeline insulation, but also provide buoyancy for various equipment in marine development. High-strength lightweight composite materials belong to the field of new materials. However, in the application process, the high-strength lightweight composite material itself is required to have low density and high compressive strength. However, when traditional high-strength lightweight composite materials are used in the field of buoyancy materials, especially when epoxy / hollow glass microsphere composite materials are used in buoyancy materials for marine development, the introduction of hollow glass microspheres will produce some defects and lead to a decline in m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J5/06C08L63/00C08K9/04C08K9/02C08K7/06C08K3/34C08K3/04
CPCC08J5/06C08J2363/00C08K3/042C08K3/34C08K7/06C08K9/02C08K9/04
Inventor 徐华
Owner 徐华
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