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A kind of additive and its preparation method, and the composite material containing this additive

A technology of composite materials and additives, applied in the field of carbon fiber additives, can solve the problems of high price and non-functionality of carbon fiber/matrix composite materials, and achieve the effects of enhanced interface bonding, low raw material prices, and easy availability of raw materials

Active Publication Date: 2021-07-16
HEFEI UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Carbon materials are artificial synthetic materials, and the price is relatively expensive. Inorganic nanoparticles are cheap and easy to obtain, but the modified carbon fiber / matrix composite material does not have functionality.

Method used

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  • A kind of additive and its preparation method, and the composite material containing this additive
  • A kind of additive and its preparation method, and the composite material containing this additive
  • A kind of additive and its preparation method, and the composite material containing this additive

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] An additive comprising 1 part of halloysite / carbon nanomaterial, 1 part of montmorillonite / carbon nanomaterial and 1 part of organic solvent in parts by weight;

[0033] The preparation method of above-mentioned additive, comprises the steps:

[0034] S1, the halloysite, chitosan and water are uniformly stirred for 1 h at a mass ratio of 1:0.5:15 to obtain a mixture, and a catalyst accounting for 0.2% of the mixture mass is added to the mixture, and the stirring is continued for 10 minutes, React at 180°C for 24 hours, cool to 20°C, filter and wash the filter cake with water and ethanol until neutral, put it in a blast drying oven for 1 hour at 110°C, and grind to obtain halloysite / carbon nanomaterials.

[0035] S2, uniformly stir montmorillonite, chitosan and water at a mass ratio of 1:0.5:15 for 1 hour to obtain a mixture, and add ferrous ammonium sulfate hexahydrate accounting for 0.2% of the mixture mass to the mixture , continue to stir for 10 minutes, react at 18...

Embodiment 2

[0038] An additive comprising 2 parts by weight of halloysite / carbon nanomaterial, 1 part of montmorillonite / carbon nanomaterial and 1 part of organic solvent;

[0039] The preparation method of above-mentioned additive, comprises the steps:

[0040] S1, uniformly stirring halloysite, chitosan and water for 2 hours at a mass ratio of 1:1:20 to obtain a mixture, adding a catalyst accounting for 0.4% of the mixture mass to the mixture, and continuing to stir for 15 minutes, React at 220°C for 12 hours, cool to 30°C, filter and wash the filter cake with water and ethanol until neutral, put it in a blast drying oven for 1 hour at 110°C, and grind to obtain halloysite / carbon nanomaterials.

[0041] S2, uniformly stir montmorillonite, chitosan and water for 1 hour according to the mass ratio of 1:1:20 to obtain a mixture, and add ferrous ammonium sulfate hexahydrate accounting for 0.4% of the mixture mass to the mixture , continue to stir for 15min, react at 220°C for 12h, cool to ...

Embodiment 3

[0044] An additive comprising 4 parts by weight of halloysite / carbon nanomaterial, 1 part of montmorillonite / carbon nanomaterial and 1 part of organic solvent;

[0045] The preparation method of above-mentioned additive, comprises the steps:

[0046]S1, uniformly stirring halloysite, chitosan and water for 1 h at a mass ratio of 1:1:30 to obtain a mixture, adding a catalyst accounting for 0.4% of the mixture mass to the mixture, and continuing to stir for 10 minutes, React at 200°C for 24 hours, cool to 25°C, filter and wash the filter cake with water and ethanol until neutral, put it in a blast drying oven for 1 hour at 110°C, and grind to obtain halloysite / carbon nanomaterials.

[0047] S2, uniformly stir montmorillonite, chitosan and water for 1 hour at a mass ratio of 1:1:30 to obtain a mixture, and add sulfurous acid hexahydrate accounting for 0.2-0.8% of the mixture mass to the mixture Ferric ammonium, continue to stir for 10min, react at 200°C for 24h, cool to 25°C, fi...

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Abstract

The invention belongs to the field of carbon fiber additives, in particular to an additive comprising 1-5 parts of halloysite / carbon nanomaterials, 1-5 parts of montmorillonite / carbon nanomaterials and 1-5 parts of organic solvents in parts by weight; The halloysite / carbon nanomaterial includes halloysite in a hollow tubular structure and carbon particles uniformly dispersed on the outer surface of the halloysite in a sheet structure, and the tube length of the halloysite in the hollow tubular structure is 0.5-1 μm , the tube diameter is 50-80nm; the montmorillonite / carbon nanomaterials include montmorillonite in sheet structure and carbon particles uniformly dispersed on the surface of montmorillonite in sheet structure, and the montmorillonite in sheet structure The blade length of the stone is 0.8‑1 μm, the blade thickness is 26‑50 nm, and the blade width is 0.2‑0.35 μm. The beneficial effects of the invention are: the raw materials are cheap and easy to obtain, and the modified composite material not only has high mechanical properties, but also has good functionality.

Description

technical field [0001] The invention belongs to the field of carbon fiber additives, and in particular relates to an additive, a preparation method thereof, and a composite material containing the additive. Background technique [0002] The excellent characteristics of carbon fiber reinforced resin matrix composites such as high strength, corrosion resistance and excellent design flexibility make it widely used in the fields of automobile, aerospace and automation. Since the carbon fiber is prepared at a high temperature, the interface between the carbon fiber and the epoxy resin is not firmly bonded. Adding nanomaterials to the epoxy resin matrix can improve the interfacial bonding between the resin and the fiber, and improve the performance of the carbon fiber / epoxy resin composite. Commonly used additives include carbon-based materials such as carbon nanotubes, graphene, etc., and inorganic nanoparticles such as montmorillonite, SiO 2 Wait. Carbon materials are artific...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08K3/04C08K9/12C08K7/26C08K7/00C08K3/34C08K7/06C08L63/00C08L23/06C08L67/06C08J5/24
Inventor 吴雪平赵军帅吴玉程张先龙
Owner HEFEI UNIV OF TECH
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