Graphene conductive paste applied to electrothermal film and preparation method of graphene conductive paste
A technology of conductive paste and graphene, which is applied in the manufacture of cables/conductors, conductive materials dispersed in non-conductive inorganic materials, circuits, etc., can solve the problem of high thermal attenuation rate of heating film, decreased heating effect, and pyrolysis of coverings and other issues, to achieve the effects of reducing production loss, improving production efficiency, and strong oxidation resistance
Inactive Publication Date: 2019-05-10
长江润发中科(张家港)纳米科技有限公司
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Problems solved by technology
[0005] Due to the traditional carbon-based slurry being in a high temperature state for a long time, the heat decay rate of the heating film is extremely high, and the heating effect will drop sharply after a period of use
And because the surface covering of the heating film is made of PET material, the long-term high temperature of the heating film will easily cause pyrolysis and warping of the covering, causing safety hazards
Method used
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[0023] The present invention will be further described below. The following examples are only used to illustrate the technical solution of the present invention more clearly, but not to limit the protection scope of the present invention.
[0024] Among the present invention, graphene conductive paste preparation method is specifically as follows:
[0025] Step (1) Weigh 6% of the matrix resin and 40% of the solvent by mass percentage, mix them, and dissolve them completely at 85°C to obtain a polymer resin carrier, and then filter the above polymer resin carrier on a 800-mesh sieve Miscellaneous, to obtain the final polymer resin carrier, the detector viscosity value, the required value is 100-5000cps, and the products beyond the range will not enter the next process;
[0026] Step (2) Weigh the conductive powder, each additive and the final polymer resin carrier prepared in step (1) according to the formulation amount, first fully mix the above-mentioned weighed raw materia...
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The invention discloses graphene conductive paste for an electrothermal film and a preparation method thereof. The conductive paste is prepared from the components in parts by weight: 4-20 parts of base resin, 40-60 parts of an ester solvent, 0.6-1.7 parts of an adhesion promoter, 0.5-1.1 parts of a rheological agent, 1.5-2.8 parts of an anti-settling agent, 0.7-1.3 parts of a powder oriented agent, 0.5-1.8 parts of a curing catalyst, and 10-60 parts of conductive powder. According to the prepared graphene conductive paste for the electrothermal film, oxidation resistance and acid and alkali resistance are good, the attenuation rate is low during powering on for 2000 hours, and service stability is significantly improved and the service life is significantly prolonged when the graphene conductive paste is applied to the electrothermal film.
Description
technical field [0001] The invention relates to a graphene conductive paste applied to an electrothermal film and a preparation method thereof, belonging to the technical field of conductive paste. Background technique [0002] Research shows that there are six important sources of PM2.5 in Beijing, namely soil dust, coal burning, biomass burning, vehicle exhaust and waste incineration, industrial pollution and secondary inorganic aerosols, of which coal burning accounts for about 18%. Coal burning pollution has had a huge impact on the formation of smog weather. In order to reduce coal-burning pollution in winter and improve air quality, many cities in northern my country have begun to promote "coal-to-electricity". The heating method that used to burn coal as a heating source is changed to a heating method that converts electrical energy into a heat source. [0003] Among them, electrothermal film heating is one of the heating methods of electric energy. It is a new heat...
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Inventor 刘元哲韩文利刘佳林
Owner 长江润发中科(张家港)纳米科技有限公司