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A kind of conductive paint with self-cleaning function and its preparation method and application

A conductive coating, self-cleaning technology, applied in conductive coatings, epoxy resin coatings, antifouling/underwater coatings, etc., can solve the problems of low surface energy, high cost, pollution, etc., achieve excellent conductivity, and ensure stability Effect

Active Publication Date: 2016-08-24
国科广化(南雄)新材料研究院有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the raw materials of the above method are simple and easy to obtain, the whole surface needs to undergo an electrochemical reaction, and the surface is a monomolecular layer with low surface energy, which is easy to be polluted or damaged.
[0008] Chinese patent CN1379128A proposes a chemical vapor deposition method to prepare an array structure film with super-amphiphobic properties, but the process is relatively harsh, the cost is high, and it is not easy for industrial production and application
At present, there is no report on the preparation of a stable acid and alkali resistant material with both self-cleaning function and excellent electrical conductivity.

Method used

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  • A kind of conductive paint with self-cleaning function and its preparation method and application

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Experimental program
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Effect test

Embodiment 1

[0051] Embodiment 1: Preparation of a conductive coating with self-cleaning function

[0052] (1) Preparation of modified nano-silver wires: Add silver salt, guiding agent, metal salt, and solvent A into the reaction flask at a temperature of 20°C, stir and dissolve, and heat up the reaction system after the reactants are completely dissolved. to 180°C, constant temperature reaction for 1 hour, to obtain linear nano-silver, then add low surface energy substance B, continue to react for 2 hours, and then ultrasonic for 10 minutes, and finally wash and centrifuge with acetone for 3 times to obtain modified linear nano-silver, which was subjected to TEM Scan and observe, see the results figure 1 . Redissolve the modified silver nanowires with solvent C to obtain the desired modified silver nanowire solution.

[0053] Among them, the mass ratio of silver salt, guiding agent, metal salt, solvent, and low surface energy material B: 1:1.2:1.3×10 -3 :100:0.2;

[0054] Among them, ...

Embodiment 2

[0069] Embodiment 2: Preparation of a conductive coating with self-cleaning function

[0070] (1) Preparation of modified nano-silver wires: Add silver salt, guiding agent, metal salt, and solvent A into the reaction flask at a temperature of 20°C, stir and dissolve, and heat up the reaction system after the reactants are completely dissolved. To 180°C, constant temperature reaction for 1 hour to obtain linear nano-silver, then add low surface energy substance B, continue to react for 2 hours, then ultrasonic for 10 minutes, finally wash and centrifuge with acetone for 3 times to obtain modified linear nano-silver. Redissolve the modified silver nanowires with solvent C to obtain the desired modified silver nanowire solution.

[0071] Among them, the mass ratio of silver salt, guiding agent, metal salt, solvent, and low surface energy material B: 1:1.2:1.3×10 -3 :100:0.2;

[0072] Among them, the silver salt is: AgNO 3 ;

[0073] The guiding agent is: polyethylene glycol; ...

Embodiment 3

[0087] Embodiment 3: Preparation of a conductive coating with self-cleaning function

[0088] (1) Preparation of modified nano-silver wires: Add silver salt, guiding agent, metal salt, and solvent A into the reaction flask at a temperature of 20°C, stir and dissolve, and heat up the reaction system after the reactants are completely dissolved. To 180°C, constant temperature reaction for 1 hour to obtain linear nano-silver, then add low surface energy substance B, continue to react for 2 hours, then ultrasonic for 10 minutes, finally wash and centrifuge with acetone for 3 times to obtain modified linear nano-silver. Redissolve the modified silver nanowires with solvent C to obtain the desired modified silver nanowire solution.

[0089] Among them, the mass ratio of silver salt, guiding agent, metal salt, solvent, and low surface energy material B: 1:1.2:1.3×10 -3 :100:0.2;

[0090] Among them, the silver salt is: AgNO 3 ;

[0091] The guiding agent is: polyethylene glycol; ...

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Abstract

The invention belongs to the technical field of conductive coating preparation, and discloses a conductive coating with a self-cleaning function and excellent conducting performance, and preparation method and application of the conductive coating. The conductive coating comprises a first coat and a surface coat, wherein the first coat is a mixture of epoxy resin and a curing agent, and the surface coat is a modified nanosilver thread solution. The epoxy resin is used as an adhesive, and a layer of nanosilver thread modified by fluorine-containing or silicon-containing compound is adhered on the surface of a substrate to construct the conductive coating with the self-cleaning function. The nanosilver thread is used for giving excellent conducting performance for the coating and providing the surface roughness required by the preparation of super-amphiphobic surface. The fluorine-containing or silicon-containing low surface energy substance is used for modifying the naosilver thread and providing the self-cleaning function; meanwhile, the bonding stability of the conductive coating with the self-cleaning function and the substrate is guaranteed by using the good compatibility of the low surface energy substance and the epoxy resin, and the conductive coating can be widely applied to the aspects such as building, military, electricity and energy industry.

Description

technical field [0001] The invention belongs to the technical field of conductive coating preparation, and particularly relates to a conductive coating with self-cleaning function and excellent conductive performance, a preparation method and application thereof. Background technique [0002] Due to its small size effect, surface effect, quantum size effect and macroscopic quantum tunneling effect, nanoparticles will show different effects such as heat, light, electricity, magnetism, catalysis and sensitivity from conventional materials, which endows conventional materials with many of their own new properties that do not exist. In recent years, due to its excellent properties, research on silver nanomaterials has been hot. Nano-scale silver has good applications in microelectronics, optoelectronics, catalysis, biosensors, data storage, magnetic devices, pharmaceutical antibacterial, surface-enhanced Raman spectroscopy, etc. [0003] In the field of conductive metals, meta...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D163/00C09D1/00C09D5/24C09D5/16C09D7/12B05D7/24B05D1/36D06M15/55D06M11/83D06M101/06
Inventor 胡继文齐键邹海良吴丹
Owner 国科广化(南雄)新材料研究院有限公司
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