Preparation method of aerospace special high-performance composite material presoak

A technology for aerospace and composite materials, which is applied in the field of preparation of high-performance composite material pre-dipping solution for aerospace, can solve the problems of polluted processing environment, high price, and increased material processing cost.

Pending Publication Date: 2020-10-23
ANHUI FOSTER FISHING GEAR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Carbon materials such as graphene and carbon nanotubes have excellent mechanical properties and are often used as reinforcements. However, the hydrophobicity of graphene materials limits their applications.
[0003] Carbon fiber is a high-strength, high-modulus fiber material with a carbon content of more than 95%. However, most carbon fibers are imported and t

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] 1. Preparation of prepreg:

[0035] (1) Pretreatment of carbon fiber: Place the carbon fiber in an oven at 110°C for 12 hours, and then heat it at 400°C for 3 hours;

[0036] (2) Preparation of acrylamide-acrylate resin emulsion: Dissolve 180mmol of acrylamide and 60mmol of hydroxypropyl acrylate in water to obtain a monomer aqueous solution, heat to 70°C for 5h, and add ammonium persulfate aqueous solution (with ammonium persulfate By mass, 10 mmol), after the dripping is completed, the reaction is kept warm, and the reaction is completed to obtain an acrylamide-acrylate resin emulsion;

[0037] (3) Preparation of modified acrylamide-acrylic resin: Dissolve 10mmol of bromooxime ether in methanol to obtain the bromooxime ether solution, add the bromooxime ether solution to the acrylamide-acrylate resin emulsion prepared above, and heat React at 60°C for 5 hours, and add potassium carbonate aqueous solution (based on the mass of potassium carbonate, 10.5 mmol) dropwise. After ...

Embodiment 2

[0045] The only difference between Example 2 and Example 1 is that the immersion time during composite processing is modified to 15 minutes.

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PUM

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Abstract

The invention discloses a preparation method of an aerospace special high-performance composite material presoak, and relates to the technical field of composite materials. The aerospace special high-performance composite material presoak is prepared from modified acrylamide-acrylic resin, the resin can be dissolved in water to prepare an emulsion, and the adhesive property is good; carbon fibersare used as a main material, self-made resin, nanofiller, a coupling agent and a curing agent are added to obtain the presoak containing the carbon fibers, the presoak is used for impregnating basaltfibers, and a carbon fiber layer can be formed on the outer layers of the basalt fibers after high-temperature roasting, so that the use amount of the carbon fibers in the material is reduced, and thestrength of the material is guaranteed.

Description

Technical field: [0001] The invention relates to the technical field of composite materials, in particular to a method for preparing a high-performance composite material prepreg solution special for aerospace. Background technique: [0002] In recent years, the application of composite materials in the aerospace field has become wider and wider, and the performance requirements of composite materials have become higher and higher. The interface between the composite reinforcement and the matrix and the dispersion of the reinforcement have become the bottleneck of the performance improvement of composite materials. Carbon materials such as graphene and carbon nanotubes have excellent mechanical properties and are often used as reinforcements. However, the hydrophobicity of graphene materials limits its application. [0003] Carbon fiber is a high-strength, high-modulus fiber material with a carbon content of more than 95%. However, carbon fiber is mostly imported and the price is ...

Claims

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Application Information

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IPC IPC(8): C08J5/24C08L33/26C08K13/06C08K9/00C08K7/06C08K3/26C08K5/5435C08K5/29C08F220/56C08F220/20C08F8/20
CPCC08J5/24C08F8/20C08F220/56C08J2333/26C08K13/06C08K9/00C08K7/06C08K5/5435C08K5/29C08K2003/265C08K2201/011C08F220/20
Inventor 马超强马俊赵梦洋
Owner ANHUI FOSTER FISHING GEAR
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