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A kind of layered fibrous body toughened resin matrix composite material and preparation method thereof

A technology of toughening resins and composite materials, applied in the field of materials, can solve the problems of limited effect of mechanical properties and decrease of mechanical strength of oxide fibers, etc., and achieve the effects of simple production process, improved interfacial bonding force and dispersion performance, and wide sources

Active Publication Date: 2022-08-05
MONALISA GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The mechanical strength of oxide fibers tends to drop significantly at high temperature, while the sintering temperature of traditional ceramic materials is too high, and the oxide resin matrix usually generates a liquid phase and improves the solid phase driving force by adding sintering aids, etc., but this method Limited effect on improving mechanical properties

Method used

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  • A kind of layered fibrous body toughened resin matrix composite material and preparation method thereof
  • A kind of layered fibrous body toughened resin matrix composite material and preparation method thereof
  • A kind of layered fibrous body toughened resin matrix composite material and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0038] Step 1: Soak the aluminum silicate fiber cloth in the mixed solution of ethylene glycol monomethyl ether with a liquid-solid mass ratio of 4:1, add the modified hydroiodic acid mixed solution dropwise to adjust its pH value to 3, and soak it. After 3 hours, the fiber cloth was taken out, washed 5 times with sodium perborate mixed solution and dried at 60°C to obtain fiber preform A with surface etching and hydroxylation;

[0039] Among them, the aluminum silicate fiber cloth is a combined needle-punched felt, which is composed of 40% chopped strand mat, 20% roving and 40% chopped strands according to the mass ratio, and the composition contains 50% silicic acid according to the mass ratio. Aluminum, 20% zirconia, 20% titanium oxide and 10% beryllium oxide;

[0040] The ethylene glycol monomethyl ether mixed solution is composed of 50% ethylene glycol monomethyl ether, 30% sodium tripolyphosphate and 20% deionized water in a mass ratio;

[0041] The hydriodic acid mixed...

Embodiment 2

[0053] Step 1: Soak the aluminum silicate fiber cloth in the mixed solution of ethylene glycol monomethyl ether with a liquid-solid mass ratio of 4:1, add the modified hydroiodic acid mixed solution dropwise to adjust its pH value to 3.5, and soak it. After 2.5 hours, the fiber cloth was taken out, washed 6 times with sodium perborate mixed solution and dried at 80°C to obtain fiber preform A with surface etching and hydroxylation;

[0054] Among them, the aluminum silicate fiber cloth is a combined needle-punched felt body, which is composed of 60% chopped strand mat, 20% roving and 20% chopped strands according to the mass ratio, and the composition contains 30% silicic acid according to the mass ratio. Aluminum, 30% zirconia, 25% titanium oxide and 15% beryllium oxide;

[0055] The ethylene glycol monomethyl ether mixed solution is composed of 70% ethylene glycol monomethyl ether, 10% sodium tripolyphosphate and 20% deionized water in a mass ratio;

[0056] The hydriodic a...

Embodiment 3

[0068] Step 1: Soak the aluminum silicate fiber cloth in the mixed solution of ethylene glycol monomethyl ether with a liquid-solid mass ratio of 4:1, add the modified hydroiodic acid mixed solution dropwise to adjust its pH value to 4, and soak it. After 3 hours, the fiber cloth was taken out, washed 8 times with sodium perborate mixed solution and dried at 90°C to obtain fiber preform A with surface etching and hydroxylation;

[0069] Among them, the aluminum silicate fiber cloth is a combined needle-punched felt, which is composed of 40% chopped strand mat, 40% untwisted roving and 20% chopped yarn according to the mass ratio, and the composition contains 30% silicic acid according to the mass ratio. Aluminum, 40% zirconia, 20% titanium oxide and 10% beryllium oxide;

[0070] The ethylene glycol monomethyl ether mixed solution is composed of 50% ethylene glycol monomethyl ether, 10% sodium tripolyphosphate and 40% deionized water in a mass ratio;

[0071] The hydriodic aci...

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Abstract

The invention discloses a layered fibrous body toughened resin-based composite material and a preparation method thereof. The preparation method includes the following steps: subjecting an aluminum silicate fiber cloth to surface etching and hydroxylation to obtain a fiber preform A; successively using a silica sol solution to heat-fill the alumina fiber cloth and modifying the surface of carbon nanotubes to obtain fibers Preform C: The surface of the fiber preform A and the fiber preform C are coated with a polyamide resin solution, stacked and pressed to form, to obtain a layered fiber body toughened resin matrix composite material. The preparation method of the invention effectively improves the microstructure of the fiber interface and the mechanical bonding between fibers of different groups by introducing modified groups at the interface of the fiber layer, and exhibits excellent mechanical properties on the macroscopic level.

Description

technical field [0001] The invention belongs to the field of materials, in particular to a layered fibrous body toughened resin-based composite material and a preparation method thereof. Background technique [0002] Oxide fibers are prone to a significant decrease in mechanical strength at high temperatures, while the sintering temperature of traditional ceramic materials is too high. The oxide resin matrix usually generates a liquid phase and improves the solid phase driving force by adding sintering aids. However, this method The effect of improving mechanical properties is limited. At present, my country's high-performance fibers rely heavily on foreign imports and are subject to certain technical blockade restrictions. The mass production of domestic high-performance oxide fibers is one of the keys to breakthroughs in the preparation technology of high-temperature oxide / oxide resin matrix composites. At present, the development of commercial fibers is mainly based on t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B32B9/00B32B27/04B32B9/04B32B33/00D06M11/30D06M13/165D06M11/74D06M15/59B29C70/30
CPCB32B5/02B32B5/26B32B9/047B32B33/00D06M11/30D06M13/165D06M11/74D06M15/59B29C70/30B32B2307/50B32B2260/021B32B2260/046B32B2260/04B32B2255/26B32B2255/02B32B2262/10B32B2250/20
Inventor 刘一军黄剑锋钟辛子欧阳海波袁梦张文渊李哲源李晓艺
Owner MONALISA GRP CO LTD