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High-electrical-conductivity graphene carbon-fiber electrical-conductive paper and preparation method thereof

A graphene-carbon fiber, high-conductivity technology, applied in the field of high-conductivity graphene-carbon fiber conductive paper and its preparation, can solve the problems of power drop, reduced electrical conductivity, limited contact conductivity, etc., so as to improve electrical conductivity and thermal efficiency, and improve contact conductivity. The effect of uniform distribution of carbon fiber and carbon fiber

Active Publication Date: 2016-03-02
QINGDAO GRAPHENE CARBON NEW MATERIAL TECH CO LTD
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Problems solved by technology

The disadvantage is that the conductive paper has low strength, airtightness, and extremely low water resistance. After being soaked in water, the strength is weakened by 70%, the conductivity is reduced by 60%, and the resistivity is increased by more than 60%, resulting in a significant drop in power.
The contact conductivity between the carbon fibers in the conductive paper is limited, which cannot improve the conductivity and heat conversion efficiency of the conductive paper, as well as the service life of the product

Method used

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Embodiment Construction

[0027] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with specific embodiments.

[0028] A highly conductive graphene carbon fiber conductive paper, comprising 50%-60% of polyester ultra-short fiber, 1%-3% of graphene powder, 25%-35% of wood pulp fiber, and 5%-15% of chopped carbon fiber.

[0029] The length of the chopped carbon fibers is 3 mm to 6 mm. The graphene powder is a multilayer graphene nano powder. The polyester ultra-short fiber has a length of 3 mm to 6 mm and a thickness of 0.8 to 1.6 mm. The wood pulp fiber is natural color wood pulp of chemical fiber.

[0030] The preparation method of above-mentioned a kind of highly conductive graphene carbon fiber conductive paper comprises the following steps:

[0031] 1) First take by weight 50% to 60% of polyester ultra-short fiber, 1% to 3% of graphene powder, 25% to 35% of wood pulp fiber...

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Abstract

The invention relates to a manufacturing technology of an electrical-conductive exothermic material, in particular to high-electrical-conductivity graphene carbon-fiber electrical-conductive paper and a preparation method thereof. The electrical-conductive paper comprises chopped carbon fibers, polyester super-short fibers, graphene powder and wood pulp fibers, and the high-electrical-conductivity graphene carbon-fiber electrical-conductive paper is obtained by conducting permeabilization treatment, defibering and dispersing, pulping treatment, mixing and papermaking on all the materials. According to the high-electrical-conductivity graphene carbon-fiber electrical-conductive paper and the preparation method thereof, the fibers are uniformly distributed, the thickness is uniform, the strength is high, water resistance is achieved, the air permeability is good, high electrical conductivity is achieved, the transition heat efficiency is high, the heat efficiency of the product is improved, the service life of the product is prolonged, and the electrical-conductive paper is a novel leap-upgrading and transformational breakthrough in the electrical exothermic material technology.

Description

technical field [0001] The invention relates to a manufacturing technology of a conductive heating material, in particular to a highly conductive graphene carbon fiber conductive paper and a preparation method thereof. Background technique [0002] At present, carbon fiber heating materials are manufactured by papermaking process. The papermaking process method is to mix pulp and chopped carbon fiber to make pulp and make paper to produce heat-conducting paper. The advantage is that the carbon fiber of the conductive paper is evenly distributed, and the thickness of the paper is uniform. The disadvantage is that the conductive paper has low strength, airtightness, and extremely low water resistance. After being soaked in water, the strength is weakened by 70%, the conductivity is reduced by 60%, and the resistivity is increased by more than 60%, resulting in a significant drop in power. The contact conductivity between the carbon fibers in the conductive paper is limited, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21H27/00D21H15/12D21H13/50D21H13/24D21H17/00D21H21/14D21H21/16
CPCD21H13/24D21H13/50D21H15/12D21H17/00D21H21/14D21H21/16D21H27/00
Inventor 金银金俊一
Owner QINGDAO GRAPHENE CARBON NEW MATERIAL TECH CO LTD
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