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Preparation method of electric heating film for automobile rearview mirror

A technology of automobile rearview mirror and electric heating film, which is applied in the direction of ohmic resistance heating, electric heating device, heating element material, etc., can solve the problems of complex operation steps, easy agglomeration, weak interaction, etc., and achieve simplified process and low gloss Degree, the effect of improving the utilization rate

Inactive Publication Date: 2019-04-23
TIANJIN ZHONGYA HUITONG SCI & TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the surface of graphene is in an inert state, and the interaction with other media is weak, and there is a strong van der Waals force between graphene sheets, which is very easy to agglomerate, and it is difficult to disperse evenly inside or on the surface of the fiber. The excellent performance of the graphene is fully retained in the composite material, so the hydrophilic treatment of graphene is the basic step, and then adding the cellulose derivative solution for pre-dispersion, the operation steps are complicated

Method used

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Examples

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Effect test

preparation example Construction

[0026] A kind of preparation method of electric heating film for automobile rearview mirror, its preparation concrete steps are as follows:

[0027] (1) Preparation of the first electric heating film layer ink

[0028] Weigh 6-7 parts of graphene oxide, 3-4 parts of water, appropriate amount of TMPTA diluent, 0.5-1 part of diazonium fluoroborate, 5-20 parts of novolak epoxy resin, stir and mix evenly, and add Add 3 parts of isopropanol, mix and stir evenly, obtain the graphene oxide ink containing isopropanol;

[0029] (2) Forming the first electric heating film

[0030] Apply the ink evenly on the surface of the substrate to form a film, irradiate with a cobalt-60 gamma ray radiation source for 1 hour, and dry the irradiated film in an oven at 160-200°C for 10-20 minutes, wherein the thickness of the first electric heating film is controlled at 5-15μm;

[0031] (3) Preparation of anti-glare film material

[0032] Put the anti-glare basic medicinal solution and inorganic n...

Embodiment 1

[0044] A kind of preparation method of electric heating film for automobile rearview mirror, its preparation concrete steps are as follows:

[0045] (1) Preparation of the first electric heating film layer ink

[0046] Weigh 6 parts of graphene oxide, 3 parts of water, appropriate amount of TMPTA diluent, 0.5 part of diazonium fluoroborate, 5 parts of novolac epoxy resin by weight unit, stir and mix evenly, then add 3 parts of isopropanol to it, mix Stir evenly to obtain a graphene oxide ink containing isopropanol;

[0047] (2) Forming the first electric heating film

[0048] Apply the ink evenly on the surface of the substrate to form a film, and irradiate it with a cobalt-60 gamma ray radiation source for 1 hour. The irradiated film is dried in an oven at 160°C for 10 minutes, and the thickness of the first electric heating film is controlled at 5 μm;

[0049] (3) Preparation of anti-glare film material

[0050] Put the anti-glare basic medicinal solution and inorganic na...

Embodiment 2

[0062] A kind of preparation method of electric heating film for automobile rearview mirror, its preparation concrete steps are as follows:

[0063] (1) Preparation of the first electric heating film layer ink

[0064] Weigh 7 parts of graphene oxide, 4 parts of water, appropriate amount of TMPTA diluent, 1 part of diazonium fluoroborate, 20 parts of novolak epoxy resin by weight unit, stir and mix evenly, then add 3 parts of isopropanol to it, mix Stir evenly to obtain a graphene oxide ink containing isopropanol;

[0065] (2) Forming the first electric heating film

[0066] Apply the ink evenly on the surface of the substrate to form a film, and irradiate it with a cobalt-60 gamma ray radiation source for 1 hour. The irradiated film is dried in an oven at 200°C for 20 minutes, and the thickness of the first electric heating film is controlled at 15 μm;

[0067] (3) Preparation of anti-glare film material

[0068] Put the anti-glare basic medicinal solution and inorganic na...

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Abstract

The invention relates to a preparation method of an electric heating film for an automobile rearview mirror. The method concretely comprises the following steps of: preparing first electric heating film layer printing ink, coating the surface of a substrate with the printing ink to form a film, employing a cobalt-60[gamma] ray radiation source to perform radiation and drying to prepare an anti-glare film material, spraying liquid to the first electric heating film to perform baking to prepare a second electric heating film and evaporating the second electric heating film on the anti-glare film, and finally performing annealing processing. The preparation method of an electric heating film for an automobile rearview mirror employs the graphene oxide instead of graphene to omit the step of grapheme pre-processing so as to simplify the process and improve the production efficiency, the advantages of the grapheme electric heating film and the semiconductor electric heating film are combined so that the tiny current can excite the grapheme far infrared electric heating portion, and therefore, the energy is saved, the utilization of the electric energy is improved, and the electric heating film has high haze and low gloss performances of the anti-glare film layer compared to a traditional electric heating mode.

Description

technical field [0001] The invention relates to the technical field of electric heating films, in particular to a method for preparing an electric heating film for automobile rearview mirrors. Background technique [0002] With the rapid development of modern automobile industry technology, car rearview mirrors are auxiliary components used on automobiles and are installed on the left and right sides of the car doors; after snowing in winter, this kind of rearview mirrors often produce a layer of mist, making the rearview mirrors Can not be used, thereby the driver often produces accidents because of being unable to see the situation behind when reversing or turning left and right. [0003] The principle of the traditional electric heating film is to heat through the resistance wire, the heating area is small, the electric heating efficiency is low, the resistance wire is easy to oxidize for a long time, the safety is low, and the service life is short. Therefore, it is nec...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05B3/10H05B3/34H05B3/84
CPCH05B3/10H05B3/34H05B3/845
Inventor 司荣美潘中海刘彩风
Owner TIANJIN ZHONGYA HUITONG SCI & TECH CO LTD
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