Black shading conductive coating and preparation method thereof

A conductive coating, black technology, applied in conductive coatings, camouflage coatings, radiation-absorbing coatings, etc., can solve the problems of carbon-based conductive coating surface resistance, mechanical and physical properties, shading and shielding performance, etc., to achieve excellent shading and light absorption properties, excellent electrical conductivity, and the effect of improving bonding strength

Pending Publication Date: 2021-09-03
上海戎科特种装备有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention provides a black light-shielding conductive coating and its preparation method and application, which are used to overcome the defects of incompatible surface resistance, mechanical and physical properties, light-shielding and shielding properties of existing carbon-based conductive coatings

Method used

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  • Black shading conductive coating and preparation method thereof
  • Black shading conductive coating and preparation method thereof
  • Black shading conductive coating and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] The present embodiment provides a kind of black light-shielding conductive coating, and this coating comprises A component and B component that mass ratio is 100:1; Described A component comprises two-component polyurethane, solvent, pigment filler and auxiliary agent; Described Component B is long-chain isocyanate, and the dosage is 1wt% of component A. In this example, component A is configured using the formula in Table 1:

[0040] Table 1

[0041]

[0042]

[0043] The preparation method of black light-shielding conductive paint in the present embodiment is as follows:

[0044] S1: Weigh film-forming substances, solvents, pigments and fillers and additives according to the mass ratio of each component in Table 1, and mix oily two-component polyurethane, DMF, conductive carbon black, graphite, nickel powder, dispersant, matting agent, ultraviolet Aging aids, light stabilizers and antioxidants were added to the reactor in proportion and mixed; then the mixed pow...

Embodiment 2

[0051] The present embodiment provides a kind of black light-shielding conductive coating, and this coating comprises A component and B component that mass ratio is 10:1; Described A component comprises two-component acrylic acid, solvent, pigment filler and auxiliary agent; Described Component B is long-chain isocyanate, and the dosage is 10wt% of component A. In this example, component A is configured using the formula in Table 3:

[0052] table 3

[0053]

[0054]

[0055] The preparation method of black light-shielding conductive paint in the present embodiment is as follows:

[0056] S1: Weigh film-forming substances, solvents, pigments and fillers and additives according to the mass ratio of each component in Table 3, and mix oily two-component acrylic acid, n-butyl acetate, conductive carbon black, graphite, nickel powder, dispersant, matting Agent, UV aging aid, light stabilizer and antioxidant are added in proportion to the reactor and mixed; then the mixed po...

Embodiment 3

[0063] This embodiment provides a kind of black light-shielding conductive coating, and this coating comprises A component and B component that mass ratio is 100:20; Described A component comprises two-component epoxy resin, solvent, pigment filler and auxiliary agent; The B component is a long-chain isocyanate, and the dosage is 20wt% of the A component. In this example, component A is configured using the formula in Table 5:

[0064] table 5

[0065]

[0066] The preparation method of black light-shielding conductive paint in the present embodiment is as follows:

[0067] S1: Weigh film-forming substances, solvents, pigments and fillers, and additives according to the mass ratio of each component in Table 5, and mix oily two-component epoxy resin, ethanol, conductive carbon black, graphite, nickel powder, dispersant, and matting agent , ultraviolet aging aid, light stabilizer and antioxidant are added in proportion to the reactor and mixed; then the mixed powder and sol...

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Abstract

The invention discloses a black shading conductive coating and a preparation method thereof. The coating comprises a component A and a component B in a mass ratio of 100:(1-20), wherein the component A comprises the following components in percentage by mass: 40-60% of a film-forming substance, 20-30% of a solvent, 10-20% of pigment filler and 5-15% of an auxiliary agent; the component B is a curing agent; the auxiliary agents comprise a dispersing agent, a defoaming agent, a flatting agent, a delustering agent, an adhesion promoter, a softening agent, a grinding aid, an ultraviolet aging auxiliary agent, a light stabilizer and an antioxidant. The shading conductive coating can be coated on the surface of plain cloth, various films, wall bodies or glass with flat surfaces to obtain a shading, light-absorbing and low-reflection material with the coating resistance as low as 305 m[ohm], and the preparation method provided by the invention is simple, is suitable for mass production, and can be applied to the fields of electromagnetic shielding, darkroom shading, military thunder camouflage protection and the like.

Description

technical field [0001] The invention relates to a method for preparing a light-shielding conductive paint for coating, which can be applied to the fields of darkroom light-shielding, shielding, radar camouflage protection and the like. Background technique [0002] In the fields of textiles, photovoltaics, printed circuits, biosensors, electromagnetic shielding materials, antennas, etc., conductive coatings are widely used due to their good conductivity, low cost, and ease of use. Commonly used conductive coatings are divided into metal conductive coatings and carbon-based conductive coatings. Although metal conductive coatings have excellent electrical conductivity, the production cost is relatively high due to the addition of a large amount of precious metals such as silver, nickel, and copper, and high pollution is easily formed during the production process. Carbon-based conductive coatings have become the industry's first choice due to factors such as low production co...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D175/04C09D5/24C09D5/32C09D5/30
CPCC09D175/04C09D5/24C09D5/32C09D5/30C08K2003/0862C08K3/04C08K3/08C08K3/041
Inventor 孟卓陶沙周建伟张朝阳穆武第戴沙贵龙骏刘磊张振东
Owner 上海戎科特种装备有限公司
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