Method for producing planar heating body with carbon fiber
A carbon fiber manufacturing and heating body technology, applied in electric heating devices, heating elements, ohmic resistance heating, etc., can solve the problems of limited use, limited insulating film material, easy to induce sparks, etc., to increase the temperature limit, improve the service life, and eliminate the effect of possibility
Inactive Publication Date: 2010-02-03
尹铉武
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Problems solved by technology
[0003] However, in the past, the heating temperature of the planar heating element is difficult to reach 83°C, and the application is limited, and the insulating film materials that can be used are also limited. When the temperature is higher than 65°C, the insulating film will bulge, which will damage the appearance and performance of the planar heating element.
[0004] In addition, the previous planar heating element is not wrinkle-resistant. Once the insulating film is wrinkled, current collection will occur at the wrinkled interface, which will easily induce sparks and cause fire and power failure hazards.
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[0042] The method for producing a planar heating element of the present invention includes the following steps: by mixing ultrafine carbon fibers with a length of 5 to 25 mm and a diameter of 20 μm to 100 μm, polyester fibers of Preparation of Pulp and Water-Soluble Binder Use the mixture of ultra-fine carbon fiber formed by mixing the pulp and water to form the primary paper; the carbon powder, which accounts for 3-50% of the weight of the primary paper, accounts for 2-30% of the weight of the primary paper. The conductive polymer, water-soluble binder accounting for 1-5% of the initial paper weight, and water are mixed to make a carbon powder mixed solution; the conductive polymer is coated on the above-mentioned ultra-fine carbon fiber formed initial paper to form a conductive polymer layer; impregnating or coating the above-mentioned carbon powder mixed solution on one or both sides of the initial paper forming the conductive polymer layer, thereby forming a carbon powder m...
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Abstract
A method of utilizing carbon fiber to prepare planar heating body includes using extremely fine carbon fiber in 5-25mm long and 20micro-100micro thickness, paper pulp, water soluble adhesive ( WSA ) and water to prepare primary paper; using carbon powder on 3-50wt.% of primary paper, conductive polymer in 2-30wt.% of primary paper, WSA and water to prepare carbon powder mixed liquid; preparing silver electrode wire and copper electrode wire after coating said polymer and mixed liquid on primary paper; melting insulation material on planar heating base body said electrode wires then drying it to form insulation layer for obtaining final product.
Description
technical field [0001] The invention relates to a method for manufacturing a planar heating element, in particular to a method for manufacturing a planar heating element using ultrafine carbon fibers. Background technique [0002] In the past, the method of manufacturing a surface heating element was to mix carbon powder and adhesive and then print it on a PET (polyester) film in a certain pattern, and then use a polyester film or a hot melt adhesive such as EVA for insulating bonding to form a surface. Heat-like body. [0003] However, the heating temperature of the previous planar heating element is difficult to reach 83°C, the application is limited, and the insulating film material that can be used is also limited. When the temperature is higher than 65°C, the insulating film will bulge, destroying the appearance and performance of the planar heating element. . [0004] In addition, the conventional planar heating element is not wrinkle-resistant. Once the insulating f...
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IPC IPC(8): H05B3/14H05B3/06H05B3/34
Inventor 郑仁
Owner 尹铉武