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An even and rapid interlayer adhering method for carbon fiber heat-insulating hard felt

A technology of thermal insulation hard felt and carbon fiber, which is applied in the field of uniform and rapid bonding between layers of carbon fiber thermal insulation hard felt, which can solve the problems of easy delamination of the amount of adhesive, high labor intensity of workers, product pollution, etc., and achieve product strength and density guarantee , Product strength and density are good, and the effect of improving work efficiency

Active Publication Date: 2017-04-05
扬州东润新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, in the process of producing carbon fiber thermal insulation hard felt in China, manual brushing is used, and the excessive amount of binder often causes the interlayer bonding to easily delaminate. A large amount of graphite powder is used as the solid phase of the binder. A large amount of resin carbon powder appears, which is easy to cause pollution to the products produced by the user unit, and the labor intensity of the workers is high, and the efficiency is too low

Method used

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  • An even and rapid interlayer adhering method for carbon fiber heat-insulating hard felt

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] A method for evenly and quickly bonding between layers of carbon fiber thermal insulation hard felt, comprising the following steps:

[0019] Step 1: Configure the adhesive 2 according to the following weight ratio: diluent: resin: graphite powder = 65:25:10, stir continuously in the mixing tank 1 for 20 minutes, put it into the rubber bucket 4 for use, and the diluent has a concentration of 95 % industrial alcohol, when the temperature is lower than 10 ℃, it must be equipped with a constant temperature water bath heating device;

[0020] The second step: adjust the viscosity of the adhesive 2: the viscosity is controlled at 1500cps;

[0021] Step 3: At the glue spraying site, use the pneumatic graphite emulsion spray gun 5 to spray the adhesive glue on the carbon fiber insulation hard felt layer 7, first connect the compressed air connector of the graphite emulsion spray gun 5, and place the other port on the glue In barrel 4, the spray angle of the spray gun is 75 de...

Embodiment 2

[0025] The steps of a method for uniform and rapid bonding between carbon fiber thermal insulation hard felt layers described in this embodiment are the same as in Embodiment 1, and the different technical parameters are:

[0026] 1) The adhesive viscosity in the second step is controlled at 1700cps;

[0027] 2) In the third step, the height of the spray gun from the carbon fiber felt is 300mm, the air pressure of the spray gun is 0.3Mpa, and the spray angle of the spray gun is 90 degrees;

[0028] 3) In the fourth step, the amount of glue sprayed is controlled at 0.45kg / ㎡.

Embodiment 3

[0030] The steps of a method for uniform and rapid bonding between carbon fiber thermal insulation hard felt layers described in this embodiment are the same as in Embodiment 1, and the different technical parameters are:

[0031] 1) The adhesive viscosity in the second step is controlled at 2000cps;

[0032] 2) In the third step, the height of the spray gun from the carbon fiber felt is 400mm, the air pressure of the spray gun is 0.4Mpa, and the spray angle of the spray gun is 110 degrees;

[0033] 3) In the fourth step, the amount of glue sprayed is controlled at 0.4kg / ㎡.

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Abstract

An even and rapid interlayer adhering method for carbon fiber heat-insulating hard felt is provided and belongs to the technical field of novel materials. According to the method, through adjusting an adhesive formula in a process of preparing carbon fiber laminated heat-insulating hard felt, interlayer adhesion is rapid and even, the using amount of an adhesive is reduced, construction using is reduced, even coating of the adhesive among layers is ensured, and product cracking, layering and dreg falling phenomena are reduced. After high-temperature treatment, the qualified rate of interlayer adhesion is 98% or above, ash dropping among layers is obviously reduced, crosslinking of resin carbon and fiber carbon is firmer, and the felt is cleaner during a hearth using period. Cracking and layering phenomena caused by unevenness by artificial coating are greatly reduced. Construction time for each square meter is reduced from original 10 min to 1 min, thus greatly increasing the working efficiency. Labor intensity of workers and operation inconvenience are reduced. Product strength and density are well ensured.

Description

technical field [0001] The invention belongs to the technical field of new materials, and in particular relates to a method for uniformly and quickly bonding carbon fiber thermal insulation hard felt layers. Background technique [0002] At present, in the process of producing carbon fiber thermal insulation hard felt in China, manual brushing is used. Excessive amount of binder causes interlayer bonding to easily delaminate. A large amount of binder uses graphite powder in solid phase. After high temperature treatment, it is easy to There is a large amount of resin carbon powder, which is easy to cause pollution to the products produced by the user unit, and the labor intensity of the workers is high, and the efficiency is too low. Contents of the invention [0003] In view of the above problems, the object of the present invention is to provide a method for uniform and rapid bonding between layers of carbon fiber thermal insulation hard felt. In order to achieve the abo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B37/12
CPCB32B37/12B32B37/1207B32B37/1284B32B2037/1269
Inventor 杨建校刘君基曾自力
Owner 扬州东润新材料科技有限公司
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