Aqueous system conductive polyaniline ultraviolet curing antistatic coating and preparation method thereof

A conductive polyaniline and water-based system technology, applied in conductive coatings, polyurea/polyurethane coatings, coatings, etc., can solve the problems of high efficiency and energy saving, and achieve long-lasting antistatic effects and stable coating systems

Active Publication Date: 2011-01-26
CHANGCHUN INST OF APPLIED CHEMISTRY - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
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  • Application Information

AI Technical Summary

Problems solved by technology

Although these reported water-based antistatic coatings have good environmental protection operability, they ca

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation Embodiment 1

[0027] Preparation Example 1: Preparation of Waterborne Conductive Polyaniline

[0028] According to the proportion by weight, 220 parts of ethylene glycol monomethyl ether phosphate was added to 100 parts of intrinsic polyaniline, 3540 parts of water were added, and stirred at 2200 rpm at 90 ° C for 24 hours to obtain a solid content of 5.7%. The aqueous dispersion of water-based conductive polyaniline has a particle size of 30-65nm, a molecular weight of 32000-45000 Daltons, and an electrical conductivity of 30S / cm.

preparation Embodiment 2

[0029] Preparation Example 2: Preparation of Waterborne Conductive Polyaniline

[0030] According to the ratio by weight, 180 parts of diethylene glycol monomethyl ether phosphate was added to 120 parts of intrinsic polyaniline, 5470 parts of water were added, and stirred at 80 ° C for 32 hours at a speed of 2000 rpm to obtain a solid content of 5.4 % The aqueous dispersion of water-based conductive polyaniline has a particle size of 36-70 nm, a molecular weight of 38,000-47,000 Daltons, and an electrical conductivity of 12 S / cm.

preparation Embodiment 3

[0031] Preparation Example 3: Preparation of Cationic Waterborne UV Curable Resin

[0032] Under the protection of dry nitrogen, 3mol toluene-2,4-diisocyanate, 1.5mol vacuum dehydrated polypropylene glycol (molecular weight is 1000 Daltons) and 0.24g dibutyltin dilaurate catalyst are added to a thermometer equipped with a stirring Keep the temperature at 40°C and the mechanical stirring speed at 400rpm, and react for 2.5 hours in a four-necked flask with a device and a dropping funnel; then, control the temperature at 25°C, add 150g of butanone, and add 0.5 mol of N-methyldiethanolamine, the mechanical stirring speed was 500rpm, and reacted for 1.5 hours. Then, the reaction temperature was controlled at 70°C, and 2.2 mol of hydroxyethyl acrylate dissolved with 1.3 g of p-hydroxyanisole was added dropwise to the reaction system at a rate of 15 ± 3 ml / min and a mechanical stirring speed of 600 rpm. Reaction 2 Hour, when NCO%=0.09%, at 45 ℃, add the water with 2900g, mechanical ...

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Abstract

The invention provides an aqueous system conductive polyaniline ultraviolet curing antistatic coating and a preparation method thereof. In the method, water-based conductive polyaniline is used as a conductive component, water-based ultraviolet curing resin is used as a film-forming component, coatings with different conductivities can be respectively obtained, and a coating with the surface resistance value range of 1*10<3> to 1*10<9>omega/sq is formed on a base material; the coating has the characteristics of high photocuring speed of 20 to 26M/min, no need of heating, high efficiency and energy conservation; the coating does not contain any toxic, harmful and volatile organic solvents such as toluene and dimethylbenzene, is an aqueous system coating and is environmentally-friendly; the coating has a stable system and cannot be demixed after being placed for six months at room temperature; and when a conductive coating containing the aqueous system conductive polyaniline ultraviolet curing antistatic coating is placed in the air for one year, the surface resistance is only improved by 1.3 to 8 percent, so the coating has lasting antistatic effect.

Description

technical field [0001] The invention belongs to a water-based system conductive polyaniline ultraviolet light curing antistatic paint and a preparation method thereof. Background technique [0002] The damage caused by static electricity widely appears in the fields of electronics, communications, computers, precision instruments, and aerospace and military, and the losses caused are hundreds of millions. The application of antistatic coating is one of the effective means to reduce the loss caused by static electricity. Therefore, it has been paid more and more attention by people, and the demand is increasing. Usually antistatic coatings are prepared by adding conductive fillers to the base coating and grinding them online. Commonly used conductive fillers include conductive carbon black, graphite, carbon fiber and metal or metal oxide materials. In order to obtain an ideal antistatic coating, the amount of conductive filler is large, so it is easy to cause the conductive...

Claims

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Application Information

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IPC IPC(8): C09D179/02C09D175/14C09D7/12C09D5/24
Inventor 张红明李季王献红王佛松
Owner CHANGCHUN INST OF APPLIED CHEMISTRY - CHINESE ACAD OF SCI
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