Conductive heating composite sheet made from conductive heating adhesive film, preparation method thereof, and product made from composite sheet

Abstract

The invention relates to a conductive heating composite sheet made from a conductive heating adhesive film, a preparation method thereof, and a product made from the composite sheet. The preparation method comprises the steps of fully mixing a conductive heating filler, a polyethylene resin, an ethylene copolymer, a dispersant and an antioxidant in a mixing device to obtain a copolymer of the above materials; granulating the obtained copolymer in a granulation apparatus to obtain resin particles; and putting the obtained resin particles into a film forming apparatus to obtain a conductive heating adhesive film. The prepared conductive heating adhesive film is used for adhering one or more of the materials including a plywood, a wood veneer, a bamboo veneer, a cement fiberboard, a ceramic tile, glass, a natural stone and a metal composite plate into a conductive heating composite sheet having a conductive heating function. According to the invention, the conductive heating composite sheet and the product thereof are not only safe to use and capable of long-term even heating, but can also meet the requirements for the development of various industry products, such as electric heating building materials, household appliances, equipment shields, antifreeze equipment and the like.

Description

technical field [0001] The invention relates to a conductive heating composite board made of a conductive heating adhesive film and a preparation method thereof, and also relates to a product made of the conductive heating composite board, which belongs to the technical field of electrothermal materials. technical background [0002] Conductive heating materials mainly play the role of conductive heating in the field of conductive heating composite panels. With the improvement of people's living standards, the requirements for the comfort of the living environment are getting higher and higher. Heating equipment such as air conditioners and heaters cannot meet people's needs. Heating methods have been generally accepted by consumers. Because with the further improvement of environmental protection requirements, the traditional heating methods using oil, gas, and coal consume a lot of energy and produce a lot of pollutants, and the heat conversion efficiency is low. Therefor...

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Problems solved by technology

If the carbon fiber heating paper is applied to the floor, there are the following problems: 1) the papermaking process is likely to cause uneven distribution of carbon fibers and graphene in the paper; 2) additional adhesives are required, and the process is complicated; 4) Due to the poor ductility of the paper, it will be torn due to thermal expansion and contraction during use, which will easily generate arcs and pose a safety hazard

However, in fact, there are the following problems in the application process: 1) the process of coating or impregnating the conductive heating coating on the substrate is very easy to cause uneven distribution of the conductive heating matrix material in the conductive heating coating on the surface of the substrate; 2) An additional adhesive is required, and the process is complicated; 3) The adhesive will penetrate into the conductive heating coating during the curing process, thereby affecting its conductive heating effect; 4) The conductive heating base material is easily oxidized on the surface of the substrate, which affects its service life; 5 ) When paper is used as the substrate, due to its poor ductility, it will be torn due to thermal expansion and contraction during use, which will easily generate arcs and affect the safety of use

[0005] In short, the applicant has not found a conductive heating adhesive that can maintain uniform heating for a long time, ensure safe use, and has an adhesive effect from the prior art, and there is no corresponding manufacturing process that can ensure uniform distribution of substrates and simple and easy process. Therefore, it cannot meet the needs of product development in many industries such as electric heating building materials, home appliances, equipment shields, and antifreeze equipment.

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