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Carbon material electrical heating membrane and preparing method

An electric heating film and carbon material technology, applied in electric heating devices, ohmic resistance heating, heating element materials, etc., can solve the problems that electric heating films cannot be used on a large scale, low electrothermal conversion rate, unusable, etc. The electric effect is obvious, the preparation process is simple, and the effect of easy industrialization

Inactive Publication Date: 2006-05-10
贵州航天江南工业贸易有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For dura-film electric heating materials, it has the characteristics of high service temperature (the maximum service temperature can reach about 900 ℃), but its electrothermal conversion rate is relatively low (generally not more than 80%), not soft, and cannot be used in many cases ; Flexible electric heating film generally has a high electrothermal conversion rate (can be greater than 80%), so it is highly valued, but at present, the maximum operating temperature of this electric heating film is generally below 100°C
Therefore, the electric heating film cannot be used on a large scale in electric heating materials.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Embodiment 1 of the present invention: 100 grams of emulsified chloroprene rubber is diluted with a special diluent provided by the merchant, and the addition of the diluent is 300 grams, which is used to adjust the viscosity of the slurry, while adding 3 grams of carbon black dispersant DP -983, after uniform dispersion, first add 40 grams of conductive carbon black to disperse for 0.8 hours, then add 61 grams of graphite carbon powder to disperse for 0.8 hours, put the dispersed slurry into a Raymond mill for 1 hour, and then put it into Disperse in the disperser for 0.8 hours. According to the characteristics of the coating machine, add 100 grams of diluent to adjust the viscosity of the slurry in each dispersion and grinding to make a coating slurry; use the coating machine to evenly prepare the prepared slurry Coating on glass fiber cloth and drying, the process parameter is to keep warm at 60°C for 25 minutes, the thickness of each coating is beneficial to prevent ...

Embodiment 2

[0018] Embodiment 2 of the present invention: Dilute 100 grams of high-temperature epoxy resin with epoxy resin diluent, the addition of diluent is 400 grams, for adjusting the viscosity of slurry, add 3 grams of carbon black dispersant DP-983 simultaneously After dispersing evenly, first add 60 grams of conductive carbon black to disperse for 0.5 hours, then add 36 grams of graphite carbon powder and 10 grams of stabilizer Al 2 o 3 Disperse for 0.5 hours, put the dispersed slurry into a sand mill and grind for 2 hours, and then put it into a disperser to disperse for 0.5 hours. According to the characteristics of the coating machine, add 50 grams of diluent to each dispersion and grinding to adjust The viscosity of the slurry is used to prepare the slurry for coating; the prepared slurry is evenly coated on the glass fiber cloth with a coating machine and dried. The process parameters are 120 ° C for 15 minutes, 160 ° C for 15 minutes, Keep warm at 200°C for 15 minutes. The ...

Embodiment 3

[0019] Embodiment 3 of the present invention: 100 grams of high-temperature phenolic resins are diluted with high-temperature phenolic resin diluents, and the addition amount of diluents is 200 grams, is used for adjusting the viscosity of slurry, adds 3 grams of carbon black dispersants DP-983 simultaneously, After uniform dispersion, first add 30 grams of conductive carbon black to disperse for 1 hour, then add 40 grams of graphite carbon powder and 20 grams of stabilizer SiO 2 Disperse for 1 hour, put the dispersed slurry into the three-roller and roll it continuously for 4 times, and then put it into the disperser to disperse for 1 hour. According to the characteristics of the coating machine, add dilution 150 grams of additives to adjust the viscosity of the slurry to prepare the slurry for coating; the prepared slurry is evenly coated on the glass fiber cloth with a coating machine and dried. The process parameters are 180 ° C for 25 minutes, each The thickness of the co...

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Abstract

This invention discloses one carbon materials generating film and its process method, which makes use of one micro carbon powder, conductive carbon powder excellent electricity and thermal property and adds proper stabilizer, adhesive agent and disperser to make flexible electricity film materials. Comparing with current technique, the invention product is of high conversion efficiency and good saving effect and can product low temperature, middle temperature type with highest temperature of 350 degrees and its voltage is between 3.6V to 650V with wide utility range and with simple process.

Description

Technical field: [0001] The invention relates to a carbon material electric heating film and a preparation method thereof, belonging to the technical field of electric heating elements. Background technique: [0002] Since the invention of electricity, there have been electric heating materials. At present, the widely used electric heating materials mainly include metal resistance electric heating materials (metal resistance wires, etc.), non-metallic resistance electric heating materials (graphite rods, graphite cloth, etc.). Electric heating materials are always developed towards the goals of simple production, energy saving, wide range of pressure resistance, and extended service life, especially energy saving is the parameter that people are most concerned about at present. In recent years, people have developed electric heating films, because such electric heating materials generally have a high electrothermal conversion rate, the service life is longer than that of met...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05B3/12H05B3/34
Inventor 吴翔孟国军张锡江
Owner 贵州航天江南工业贸易有限公司
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