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Preparation method of novel carbon nanotube/vinyl ester emulsion conductive coating

A technology of carbon nanotubes and vinyl esters, applied in conductive coatings, epoxy resin coatings, coatings, etc., can solve problems such as easy settlement, poor corrosion resistance, unstable electrical conductivity, etc., and achieve high fatigue resistance, High conductivity and short dry time

Inactive Publication Date: 2015-09-09
高凡
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Carbon-based fillers include carbon black, graphite, etc. The disadvantage is that the color is dull and dark, and it is impossible to prepare light-colored conductive coatings; metal-based fillers (such as gold, copper, nickel, etc.) are easy to oxidize to form non-conductive metal oxides, which are conductive. The performance is unstable, easy to settle, poor corrosion resistance, and its application is limited; the composite conductive filler uses cheap and light-weight materials (such as glass, graphite, etc.) as the base or core material, and coats a layer on its surface Or several layers of conductive substances with good chemical stability, strong corrosion resistance and high conductivity (such as gold, nickel, etc.)

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Prepare raw materials according to the following parts by mass: 100 parts of vinyl ester emulsion; 2 parts of carbon nanotubes; 3 parts of talcum powder, 5 parts of titanium dioxide; 0.1 part of film-forming aid, 0.5 part of dispersant, 0.2 part of defoamer, 1 part of agent and 11 parts of leveling agent;

[0022] Add carbon nanotubes to a mixture of concentrated sulfuric acid and concentrated nitric acid with a volume ratio of 3:1, ultrasonically treat for 30 minutes, wash with deionized water until neutral, and dry in an oven at 80°C for 24 hours;

[0023] Slowly add the treated carbon nanotubes to talc powder and titanium dioxide under low-speed stirring, mix well, add the mixed slurry to vinyl ester emulsion, and add film-forming aids, dispersants, defoamers, thickeners and fluids Leveling agent, high-speed stirring for 2h, made of conductive coatings.

Embodiment 2

[0025] Prepare raw materials according to the following parts by mass: 100 parts of vinyl ester emulsion; 4 parts of carbon nanotubes; 5 parts of talc powder, 5 parts of titanium dioxide; 1 part of film-forming aid, 0.6 part of dispersant, 0.4 part of defoamer, 2 parts of agent and 1.2 parts of leveling agent;

[0026] Add carbon nanotubes to a mixture of concentrated sulfuric acid and concentrated nitric acid with a volume ratio of 3:1, ultrasonically treat for 30 minutes, wash with deionized water until neutral, and dry in an oven at 80°C for 24 hours;

[0027] Slowly add the treated carbon nanotubes to talc powder and titanium dioxide under low-speed stirring, mix well, add the mixed slurry to vinyl ester emulsion, and add film-forming aids, dispersants, defoamers, thickeners and fluids Leveling agent, high-speed stirring for 2h, made of conductive coatings.

Embodiment 3

[0029] Prepare raw materials according to the following mass parts: 100 parts of vinyl ester emulsion; 5 parts of carbon nanotubes; 4 parts of talc powder, 2 parts of titanium dioxide; 1 part of film-forming aid, 0.5 part of dispersant, 0.2 part of defoamer, thickener 1 part of agent and 0.5 part of leveling agent;

[0030] Add carbon nanotubes to a mixture of concentrated sulfuric acid and concentrated nitric acid with a volume ratio of 3:1, ultrasonically treat for 30 minutes, wash with deionized water until neutral, and dry in an oven at 80°C for 24 hours;

[0031] Slowly add the treated carbon nanotubes to talc powder and titanium dioxide under low-speed stirring, mix well, add the mixed slurry to vinyl ester emulsion, and add film-forming aids, dispersants, defoamers, thickeners and fluids Leveling agent, high-speed stirring for 2h, made of conductive coatings.

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Abstract

The invention discloses a preparation method of a novel carbon nanotube / vinyl esters emulsion electrically-conducting paint, a vinyl ester emulsion with high corrosion resistant resin is taken as a substrate, the carbon nanotube as a conductive filling material is added, the prepared electrically-conducting paint has good antistatic performance and mechanical property, the electrically-conducting paint enables simple construction, and can be used by spraying or artificial painting, solidification is carried out at normal temperature, the surface drying time is short with less than 3 hours, and the hard drying time is less than 12 hours.

Description

technical field [0001] The invention relates to a preparation method of a special paint, in particular to a preparation method of a carbon nanotube modified vinyl ester emulsion conductive paint. Background technique [0002] Conductive paint is a functional paint with the ability to conduct electricity and eliminate accumulated static charges. It has been developed for more than half a century. In 1948, the United States made conductive adhesive from silver and epoxy resin, which was the earliest publicized conductive paint. Then Britain, Japan and other countries successively developed conductive paint. my country also began to research and apply conductive paint as early as the 1950s. With the deepening of the research and development of conductive coatings, its application is becoming more and more extensive, and it has important application value in the fields of electronics, construction, aviation, etc., especially in the aspects of conductivity and antistatic....

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D163/10C09D7/12C09D5/24
Inventor 高凡
Owner 高凡