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Graphene-coated glass fiber reinforced resin-based composite material and preparation method thereof

A technology for reinforcing resin base and glass fiber, which is applied in the field of graphene-coated glass fiber reinforced resin-based composite material and its preparation, can solve the problems that have not been disclosed before, and achieves the effect of solving the dispersion problem, simple process and high strength

Active Publication Date: 2015-01-07
JUSHI GRP CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above-mentioned disclosed methods all add graphene as an inorganic nanofiller to the composite material system to achieve the performance of modifying the entire composite material, but the method of coating graphene on the surface of glass fiber and then reinforcing the composite material has not yet been disclosed. Pass

Method used

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  • Graphene-coated glass fiber reinforced resin-based composite material and preparation method thereof
  • Graphene-coated glass fiber reinforced resin-based composite material and preparation method thereof
  • Graphene-coated glass fiber reinforced resin-based composite material and preparation method thereof

Examples

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Effect test

Embodiment 1

[0031] ① Silane coupling agent modified graphene: Dissolve 2g graphene powder in a mixed solvent of 200mL distilled water and 150mL absolute ethanol, and form a uniform dispersion after ultrasonication for 1h; then 50mL containing 15g aminopropyltriethoxysilane (A1100) of absolute ethanol was slowly added to the above-mentioned dispersion liquid under stirring, and reacted at 60°C for 24 hours after the addition was completed, and the obtained pasty product was first washed with absolute ethanol three times to remove excess A1100, and then Wash 3 times with distilled water, and finally centrifuge at 8000r / min for 15min to obtain 1.5g of A1100 modified graphene.

[0032]② water dispersion of glass fiber impregnated with silane coupling agent-modified graphene: take 1 g of silane coupling agent-modified graphene obtained in step ① and disperse it in 1000 mL of distilled water to obtain the mass fraction of silane coupling agent-modified graphene It is a 0.1% aqueous dispersion, ...

Embodiment 2

[0039] ① Silane coupling agent modified graphene: Dissolve 2g graphene powder in a mixed solvent of 200mL distilled water and 150mL absolute ethanol, and form a uniform dispersion after ultrasonication for 1h; then 50mL containing 15g aminopropyltriethoxysilane (A187) dehydrated alcohol was slowly added to the above-mentioned dispersion liquid under stirring, and reacted at 60°C for 24 hours after the addition, and the obtained pasty product was first washed 3 times with dehydrated ethanol to remove excess A187, and then Wash 3 times with distilled water, and finally centrifuge at 8000r / min for 15min to obtain 1.5g of A187 modified graphene.

[0040] ② water dispersion of glass fiber impregnated with silane coupling agent-modified graphene: take 1 g of silane coupling agent-modified graphene obtained in step ① and disperse it in 1000 mL of distilled water to obtain the mass fraction of silane coupling agent-modified graphene It is a 0.1% aqueous dispersion, and a uniform dispe...

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Abstract

The invention provides a graphene-coated glass fiber reinforced resin-based composite material. The preparation method comprises the following steps of dispersing graphene modified by a silane coupling agent in water to obtain a uniformly-dispersed aqueous dispersion, dipping glass fibers into the aqueous dispersion of the modified graphene so that compact and uniform graphene coatings are formed on surfaces of the glass fibers under the action of electrostatic adsorption, and carrying out compounding molding on the glass fibers with the graphene coatings and a resin matrix to obtain a composite material. The graphene coatings are arranged on the surfaces of the glass fibers so that the interaction area and interface bonding strength of the fibers and the matrix are improved, graphene dispersion is avoided and excellent composite material mechanical properties are obtained. The preparation method has simple processes, a low cost and good practicality.

Description

(1) Technical field [0001] The invention belongs to the field of composite materials, in particular to a graphene-coated glass fiber reinforced resin-based composite material and a preparation method thereof. (2) Background technology [0002] Graphene is a new allotrope of carbon discovered in recent years. It has a single-layer two-dimensional carbonaceous material bonded by carbon atoms in sp2 hybrid orbitals. Its basic structural unit is the most organic material. The stable benzene six-membered ring is currently the thinnest material in the world. Due to its typical two-dimensional structure, graphene has excellent electrical properties (electron mobility at room temperature can reach 200,000 cm 2 ·V -1 ·S -1 ), thermal properties (thermal conductivity up to 5000W·m -1 ·K -1 ), mechanical properties (Young's modulus is 1100GPa, fracture strength is 125GPa), and special quantum Hall effect and quantum tunneling effect, etc. Due to the above properties, graphene has...

Claims

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Application Information

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IPC IPC(8): C08L77/06C08L63/00C08K9/12C08K9/04C08K7/14C08K3/04
CPCC08J5/043C08J2363/00C08J2377/06C08K3/04C08K7/14C08K9/06C08K9/12C08L77/06C08L63/00
Inventor 张志坚崔丽荣袁向静
Owner JUSHI GRP CO
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