Carbon fiber hard felt surface treatment method and carbon fiber hard felt

A surface treatment and carbon fiber technology, applied in the field of carbon fiber hard felt and treatment, carbon fiber hard felt, carbon fiber hard felt surface treatment, can solve the problems of affecting the service life of hard felt, easy powder loss of hard felt, and reduced corrosion resistance of hard felt. , to achieve the effect of increasing corrosion resistance, increasing flexibility and prolonging service life

Inactive Publication Date: 2020-01-21
安徽欣冉碳纤维环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Carbon fiber reinforced epoxy resin composite material has the highest specific strength and specific modulus among the existing engineering materials. The existing surface treatment methods for hard felt usually include pasting carbon cloth, pasting graphite paper, etc. Although these methods can Solve the problem that the hard felt is easy to drop powder during use, but the corrosion resistance of the hard felt after these surface treatments is reduced, which affects the service life of the hard felt

Method used

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  • Carbon fiber hard felt surface treatment method and carbon fiber hard felt

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] The specific steps of the carbon fiber hard felt surface treatment method are as follows:

[0032] Step 1: Select a certain size of carbon fiber hard felt, select a predetermined proportion of graphite, glass felt, non-woven fabric, resin and polytetrafluoroethylene and mix them with adhesives to make ingredients and store the ingredients separately;

[0033] Step 2: Apply glass mat, non-woven fabric, and resin evenly on the surface of carbon fiber hard felt by machine spraying, and perform heating pretreatment in sequence. The heating temperature is 80°C, and the time is 30 minutes. The principle of laying the top first and then the bottom of the hard felt matrix 4 is sequentially layered and needle-punched to obtain a unit layer;

[0034] Step 3: Apply adhesive and dry the unit layer several times, put it into a press, and paste it at a predetermined temperature of 80°C and a pressure of 2Mpa to form a composite unit layer;

[0035] Step 4: Coating graphite on the to...

Embodiment 2

[0037] The specific steps of the carbon fiber hard felt surface treatment method are as follows:

[0038] Step 1: Select a certain size of carbon fiber hard felt, select a predetermined proportion of graphite, glass felt, non-woven fabric, resin and polytetrafluoroethylene and mix them with adhesives to make ingredients and store the ingredients separately;

[0039] Step 2: Apply glass mat, non-woven fabric, and resin evenly on the surface of carbon fiber hard felt by machine spraying, and perform heating pretreatment in sequence. The heating temperature is 150°C, and the time is 40 minutes. The principle of laying the top first and then the bottom of the hard felt matrix 4 is sequentially layered and needle-punched to obtain a unit layer;

[0040] Step 3: apply adhesive and dry the unit layer several times, put it into a press, and paste it at a predetermined temperature of 80-130°C and a pressure of 3Mpa to form a composite unit layer;

[0041] Step 4: Coat graphite on the ...

Embodiment 3

[0043] The specific steps of the carbon fiber hard felt surface treatment method are as follows:

[0044] Step 1: Select a certain size of carbon fiber hard felt, select a predetermined proportion of graphite, glass felt, non-woven fabric, resin and polytetrafluoroethylene and mix them with adhesives to make ingredients and store the ingredients separately;

[0045] Step 2: Apply glass mat, non-woven fabric, and resin evenly on the surface of carbon fiber hard felt by machine spraying, and perform heating pretreatment in sequence. The heating temperature is 230°C, and the time is 45 minutes. The principle of laying the top first and then the bottom of the hard felt matrix 4 is sequentially layered and needle-punched to obtain a unit layer;

[0046] Step 3: apply adhesive and dry the unit layer several times, put it into a press, and paste it at a predetermined temperature of 80-130°C and a pressure of 4.55Mpa to form a composite unit layer;

[0047]Step 4: Coat graphite on th...

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PUM

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Abstract

The invention discloses a carbon fiber hard felt surface treatment method and a carbon fiber hard felt and belongs to the technical field of carbon fibers. A carbon fiber felt belongs to the technicalfield of carbon fibers and comprises a carbon fiber hard felt substrate and a non-woven fabric layer mounted at the top of the carbon fiber hard felt substrate, a glass felt layer is laid on the non-woven fabric layer, a graphite layer is laid at the top of the glass felt layer, and a resin layer and a polytetrafluoroethylene film are sequentially arranged at the bottom of the carbon fiber hard felt substrate. The bottom of the hard felt is coated with the resin and the polytetrafluoroethylene film, so that the softness of the hard felt can be improved, the corrosion resistance of the hard felt can be improved, and the hard felt can resist acid, alkali and various organic solvents.

Description

technical field [0001] The invention relates to a carbon fiber hard felt and a treatment method, in particular to a carbon fiber hard felt surface treatment method and a carbon fiber hard felt, belonging to the technical field of carbon fiber. Background technique [0002] Carbon fiber is a special fiber composed of carbon elements. It has the characteristics of high temperature resistance, friction resistance, electrical conductivity, heat conduction and corrosion resistance. It is fibrous and soft, and can be processed into various fabrics. Because its graphite microcrystalline structure is preferentially oriented along the fiber axis, it has a high density along the fiber axis. Strength and modulus, the density of carbon fiber is small, so the specific strength and specific modulus are high. The main purpose of carbon fiber is to compound with resin, metal, ceramics and carbon as a reinforcing material to manufacture advanced composite materials. Carbon fiber reinforced...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B33/00B32B37/12B32B37/10B32B5/02B32B5/06B32B37/06D06N3/00D06N3/18
CPCB32B5/02B32B5/06B32B33/00B32B37/06B32B37/10B32B37/12B32B2255/20B32B2255/26B32B2262/106D06N3/0013D06N3/183
Inventor 张勇敢王强张忠印张念念张振雨沙海峰
Owner 安徽欣冉碳纤维环保科技有限公司
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