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Polyimide composite conductive film and preparation method thereof

A polyimide, composite conductive technology, applied in the direction of equipment used to manufacture conductive/semiconductor layers, cable/conductor manufacturing, conductive layers on insulating carriers, etc. Adjustment and other issues to achieve the effect of convenient dipping of paint and convenient coating work

Pending Publication Date: 2022-05-17
侯勇
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to make up for the deficiencies of the prior art and solve the problem that the existing paint brushes are difficult to adjust the angle of the brush head when in use, resulting in inconvenient problems when dipping paint, a polyimide brush proposed by the present invention Composite conductive film and preparation method thereof

Method used

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  • Polyimide composite conductive film and preparation method thereof
  • Polyimide composite conductive film and preparation method thereof
  • Polyimide composite conductive film and preparation method thereof

Examples

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preparation example Construction

[0046] A kind of preparation method of polyimide composite conductive film, it is characterized in that: described preparation method comprises the following steps:

[0047] S1: Pickling, placing the polyimide polymer material base film in hydrochloric acid solution for 45 minutes, and then drying;

[0048] S2: Coating material preparation, adding dispersant, indium tin oxide, hydroxylated graphene, silicon dioxide and ferric oxide into deionized water, and ultrasonically dispersing evenly to prepare a coating solution;

[0049] S3: coating, the coating solution obtained in step S2 is evenly coated on the surface of the polyimide polymer material base film with a coating roller, and then dried to obtain a film loaded with a coating layer;

[0050] S4: conductive treatment, conducting conductive treatment of silver, copper or their alloys on the surface of the thin film loaded with the coating layer obtained in step S3 by using an electroplating process.

[0051]As an embodime...

Embodiment approach

[0052] As an embodiment of the present invention, in S2, the dispersant is triethylhexyl phosphoric acid and carboxymethyl cellulose.

[0053] As an embodiment of the present invention, in the S4, the electroplating solution used in the electroplating process is prepared by mixing and stirring 18% metal sulfate, 3% metal chloride and 3% boric acid.

[0054] As an embodiment of the present invention, in S4, during electroplating, it is necessary to control the temperature of the electroplating solution between 45°C and the pH value of the electroplating solution at 3.5; the current density is controlled at 3.2A / dm 2 , the electroplating time is controlled at 45 minutes, and metal silver, copper or titanium plates are used as catalytic electrodes.

[0055] As an embodiment of the present invention, in S3, the coating roller includes a connecting bracket 1, a brush roller 2, a rotating shaft 21 and an adjustment assembly 12; the rotating shaft 21 runs through the middle of the br...

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Abstract

The invention belongs to the technical field of film preparation, and particularly relates to a polyimide composite conductive film and a preparation method thereof.According to the conductive film, a polyimide high polymer material base film is sequentially coated with a coating layer formed by mixing indium tin oxide, silicon dioxide, hydroxylated graphene and ferric oxide and a metal conductive layer; the coating layer comprises the following components in parts by weight: 32-65 parts of indium tin oxide; 4-12 parts of silicon dioxide; 1 to 4 parts of hydroxylated graphene; 21 to 56 parts of ferric oxide; the metal conductive layer is made of silver, copper or alloy thereof; the adjusting assembly is arranged, when the brush roller is dipped into paint, the brush roller is manually driven to move in an adjusting groove in an adjusting disc, and when the brush roller moves to the tail end of the adjusting groove, a clamping block on the adjusting disc is matched with a torsional spring to clamp a connecting block on a rotating shaft in the adjusting disc, so that the angle between the brush roller and a connecting support can be changed, and paint dipping is facilitated; and meanwhile, coating work can be conveniently carried out on a thin film with a large size.

Description

technical field [0001] The invention belongs to the technical field of film preparation, in particular to a polyimide composite conductive film and a preparation method thereof. Background technique [0002] Conductive films are generally used in the electronics industry or on transparent parts of aircrafts, and during their use, charge accumulation is generally more likely to occur, thus causing product failure. [0003] Nowadays, in order to avoid the accumulation of charges on the surface of the conductive film, it is generally necessary to coat the surface with electrostatic paint. By adding conductive fillers or conductive polymer materials to the paint, the antistatic effect can be achieved. [0004] When applying an antistatic coating to the surface of a conductive film, it is generally necessary to use a roller to evenly coat the coating on the film. However, it is difficult to adjust the angle of the brush head of the existing paint brush during use. , resulting in...

Claims

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Application Information

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IPC IPC(8): H01B5/14H01B13/00B05C17/02
CPCH01B5/14H01B13/0026B05C17/022B05C17/0245
Inventor 侯勇
Owner 侯勇