Lightweight high-strength composite material and preparation method thereof

A technology of high-strength composite materials and reinforcing materials, which is applied in the field of lightweight and high-strength composite materials and their preparation, can solve problems such as the decline in impact resistance, and achieve the effects of reducing emissions, stable performance and small equipment investment.

Active Publication Date: 2011-12-14
ZHEJIANG WAZAM NEW MATERIAL CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For chain-like and layered inorganic reinforcing materials with a certain length-to-diameter ratio and anisotropy such as reinforcing fibers and talcum powder, the decline in the impact resistance of the reinforced material is a problem that researchers have been unable to avoid.

Method used

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  • Lightweight high-strength composite material and preparation method thereof

Examples

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Effect test

Embodiment 1

[0029] A lightweight high-strength composite material prepared by the following method:

[0030] 1) Add 23kg of hollow glass microspheres with a particle size of 900 mesh, 20kg of dimethylformamide, 0.5kg of silane coupling agent, and 0.05kg of fluorocarbon surfactant into a high-speed disperser and stir at high speed;

[0031] 2) Prepare 125kg of bisphenol A epoxy resin, 3.2kg of electronic grade dicyandiamide, 0.09kg of dimethylimidazole, and 28kg of dimethylformamide to form a glue solution with a gel time of 220 to 225 seconds;

[0032] 3) adding the glue solution in step 2) to the hollow glass microsphere solution stirred at high speed in step 1) and stirring at high speed to form a mixed solution;

[0033] 4) Immerse 2116 cloth in the mixed solution pumped into the rubber basin, put it into an oven at a temperature of 180°C to 220°C, bake it, and then cool it to obtain a resin fluidity of 20% to 21%, and a content of 45.1 %~45.4% 2116 cloth prepreg, cut the 2116 cloth p...

Embodiment 2

[0039] A lightweight high-strength composite material prepared by the following method:

[0040] 1) Add 23kg of hollow glass microspheres with a particle size of 300 mesh, 22kg of dimethylformamide, 0.6kg of silane coupling agent, and 0.05kg of fluorocarbon surfactant into a high-speed disperser and stir at high speed;

[0041] 2) Mix 125kg of bisphenol A epoxy resin, 2.8kg of electronic grade dicyandiamide, 0.055kg of dimethylimidazole, and 27kg of dimethylformamide into a glue solution with a gel time of 245-250 seconds;

[0042] 3) adding the glue solution in step 2) to the hollow glass microsphere solution stirred at high speed in step 1) and stirring at high speed to form a mixed solution;

[0043] 4) Immerse 1506 cloth in the mixed solution pumped into the rubber basin, put it into an oven at a temperature of 180°C to 220°C, bake it, and then cool it to obtain a resin fluidity of 18% to 19%, and a content of 40.3 %~40.7% 1506 cloth prepreg, cut the 1506 cloth prepreg in...

Embodiment 3

[0049] A lightweight high-strength composite material prepared by the following method:

[0050] 1) Add 40kg of hollow glass microspheres with a particle size of 1200 mesh, 30kg of dimethylformamide, 1kg of silane coupling agent, and 0.08kg of fluorocarbon surfactant into a high-speed disperser and stir at high speed;

[0051] 2) Mix 125kg of bisphenol A epoxy resin, 2.5kg of electronic grade dicyandiamide, 0.060kg of dimethylimidazole, and 29kg of dimethylformamide into a glue solution with a gel time of 260-270 seconds;

[0052] 3) adding the glue solution in step 2) to the hollow glass microsphere solution stirred at high speed in step 1) and stirring at high speed to form a mixed solution;

[0053] 4) Immerse 2116 cloth in the mixed solution pumped into the rubber basin, put it into an oven at a temperature of 180°C to 220°C, bake it, and then cool it to obtain a resin fluidity of 21% to 22%, and a content of 41.2 %~41.5% 2116 cloth prepreg, cut the 2116 cloth prepreg int...

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Abstract

The invention discloses a lightweight high-strength composite material. The lightweight high-strength composite material is prepared by soaking a reinforcing material into mixed solution, laminating and thermally curing, wherein the mixed solution comprises the following components in part by weight: 125 parts of epoxy resin, 35.0 to 80.0 parts of solvent, 2.5 to 35 parts of curing agent, 0.01 to0.50 part of accelerator; 0.5 to 5 parts of coupling agent, 0.05 to 0.1 part of surfactant and 5 to 50 parts of hollow glass microsphere; and the reinforcing material is electronic-grade glass fiber cloth. The invention also discloses a preparation method of the composite material. According to the technical scheme, the lightweight high-strength composite material and the preparation method thereof have the advantages of simple formula, capacity of directly mixing and processing, light weight and high strength.

Description

technical field [0001] The invention belongs to the field of thermosetting reinforcing materials, in particular to a lightweight high-strength composite material and a preparation method thereof. Background technique [0002] With the use of biomass energy, wind energy, solar energy, water energy, fossil energy, nuclear energy, etc., human beings have gradually moved from primitive civilization to agricultural civilization and industrial civilization. With the continuous growth of the global population and economic scale, the environmental problems brought about by energy use and their causes are constantly being recognized by people, not only the hazards of smog, photochemical smog and acid rain, but also the increase in the concentration of carbon dioxide in the atmosphere will bring Global climate change has also been confirmed as an indisputable fact. In this context, "carbon footprint", "low-carbon economy", "low-carbon technology", "low-carbon development", "low-carbo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L63/00C08L63/02C08K13/04C08K7/28C08K7/00C08K7/14B32B37/06B32B37/10B32B15/092B32B17/04
Inventor 董辉郭江程沈宗华张俊勇温剑文寥文悦陈华刚
Owner ZHEJIANG WAZAM NEW MATERIAL CO LTD
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