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Carbon fiber sheet

A carbon fiber sheet and carbon fiber technology, applied in electronic equipment, lamination, application, etc., can solve problems such as deformation, expansion or shrinkage inconsistency, and achieve the effects of good strength, consistent expansion coefficient, and weight reduction

Inactive Publication Date: 2016-12-07
JIANGSU AOSHENG COMPOSITE MATERIALS HI TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Lenovo also utilizes thermoplastic materials, although its protruding sandwich layer structure solves the deformation caused by the lagging material intruding into the sheet, but there is still the problem of adhesion
In addition, because the outer layer is a thermosetting material such as epoxy resin, and the sandwich layer is a thermoplastic material, the expansion coefficients of the two are different. When heating or cooling, inconsistent expansion or contraction will occur, resulting in deformation.

Method used

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  • Carbon fiber sheet
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Such as figure 1 , a carbon fiber sheet proposed by the present invention, including four layers of carbon fiber prepreg and a layer of glass bead-filled epoxy sheet laminate, the glass bead-filled epoxy sheet laminate is arranged on several carbon fiber prepreg In the middle layer position of the material, a layer of carbon fiber woven cloth prepreg is added between carbon fiber prepreg and carbon fiber prepreg, carbon fiber prepreg and glass bead-filled epoxy sheet laminate, and the carbon fiber prepreg composition includes resin And carbon fiber, the resin is epoxy resin, and the carbon fiber is polyacrylonitrile-based carbon fiber.

[0030] Wherein, filler glass floating beads are added in the resin, and the density of the glass floating beads is 0.3 g / cubic centimeter.

[0031] A preparation method of carbon fiber sheet, is characterized in that, comprises the following concrete steps:

[0032] S1: Resin pretreatment: Add filler glass floating beads to the resin ...

Embodiment 2

[0041] Such as figure 2 , a carbon fiber sheet proposed by the present invention, including four layers of carbon fiber prepreg and two layers of epoxy sheet laminates filled with glass beads, the epoxy sheet laminates filled with glass beads are arranged on several carbon fiber prepregs In the middle layer position of the material, a layer of carbon fiber woven cloth prepreg is added between carbon fiber prepreg and carbon fiber prepreg, carbon fiber prepreg and glass bead-filled epoxy sheet laminate, and the carbon fiber prepreg composition includes resin And carbon fiber, the resin is epoxy resin, carbon fiber polyacrylonitrile-based carbon fiber.

[0042] Wherein, filler glass floating beads are added in the resin, and the density of the glass floating beads is 0.35 g / cubic centimeter.

[0043] A preparation method of carbon fiber sheet, is characterized in that, comprises the following concrete steps:

[0044] S1: Resin pretreatment: Add filler glass floating beads to ...

Embodiment 3

[0053] Such as figure 1 , a carbon fiber sheet proposed by the present invention, including four layers of carbon fiber prepreg and a layer of glass bead-filled epoxy sheet laminate, the glass bead-filled epoxy sheet laminate is arranged on several carbon fiber prepreg In the middle layer position of the material, a layer of carbon fiber woven cloth prepreg is added between carbon fiber prepreg and carbon fiber prepreg, carbon fiber prepreg and glass bead-filled epoxy sheet laminate, and the carbon fiber prepreg composition includes resin And carbon fiber, the resin is epoxy resin, carbon fiber polyacrylonitrile-based carbon fiber.

[0054] Wherein, filler glass floating beads are added in the resin, and the density of the glass floating beads is 0.4 g / cubic centimeter.

[0055] A preparation method of carbon fiber sheet, is characterized in that, comprises the following concrete steps:

[0056] S1: Resin pretreatment: Add filler glass floating beads to the resin to reduce t...

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Abstract

The invention discloses a carbon fiber sheet, comprising no more than six layers of carbon fiber prepreg and no more than two layers of glass bead-filled epoxy sheet laminate, the glass bead-filled epoxy sheet laminate It is arranged at the middle layer position of several carbon fiber prepregs, and a layer of carbon fiber woven cloth prepreg is added between the carbon fiber prepregs and carbon fiber prepregs, carbon fiber prepregs and glass bead-filled epoxy sheet laminates . The carbon fiber sheet prepared by the invention has flame retardancy, low degree of deformation, light weight, and is easy to produce in batches, and is especially suitable for light-weight application of electronic products.

Description

technical field [0001] The invention relates to the technical field of composite materials, in particular to a carbon fiber sheet. Background technique [0002] With the development of electronic lightweighting, traditional aluminum-magnesium alloy materials cannot meet the requirements. For example, notebook computers have dropped from traditional products to less than 1 kg, and Ipads have to develop from 900 grams to 700 grams or even 500 grams. are becoming stronger and stronger, so there is an urgent need for new materials to solve them. Carbon fiber composite materials have the advantages of light weight, high strength, low thermal expansion coefficient, and corrosion resistance. They can solve the problem of lightweight and miniaturized equipment, especially the diversified development of carbon fiber products, which has attracted widespread attention. There have also been attempts to use carbon fiber composites as housings for electronic products. For example, CN103...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B9/00B32B9/04B32B27/04B32B27/06B32B27/20B32B27/38B32B37/06B32B37/10
CPCB32B5/02B32B5/26B32B27/08B32B27/12B32B27/20B32B27/38B32B37/06B32B37/10B32B2250/40B32B2260/021B32B2260/046B32B2262/106B32B2264/101B32B2307/3065B32B2307/54B32B2307/718B32B2307/72B32B2457/00
Inventor 严兵郎鸣华刘成施刘生张可可王升李秋秋
Owner JIANGSU AOSHENG COMPOSITE MATERIALS HI TECH
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