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Aqueous anticorrosive conductive coating containing conductive polymer and preparation method thereof

A conductive polymer, anti-corrosion and conductive technology, applied in the direction of conductive coatings, coatings, etc., can solve the problems of environmental protection, poor weather resistance, etc., and achieve the effects of good salt spray resistance, improved mechanical properties, and excellent anti-corrosion properties

Active Publication Date: 2011-05-25
溧阳常大技术转移中心有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The patent application of publication number CN 101368058A discloses a kind of preparation method of polyaniline anticorrosion conductive coating, raw material adopts epoxy resin, curing agent, aniline, leveling agent etc., its disadvantage is that epoxy resin is used as a film-forming material, which has poor weather resistance, and belongs to organic solvent-based coatings, which is not environmentally friendly

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Add 300g of deionized water, 10g of sodium dodecylbenzenesulfonate and 140g of polyaniline / attapulgite nano-conductive composite material powder with a volume resistivity of 20Ω·cm to the sand mill in turn, grind for 1 hour, and transfer to In the ultrasonic dispersion mixer; add 450g fluorocarbon emulsion (CF-803 type water-based fluorocarbon emulsion, produced by Guangzhou Zhongguanmei Trading Co., Ltd., the same below) successively in the ultrasonic dispersion mixer, the volume resistivity of 125g is 50Ω. cm of conductive mica powder (manufactured by Changzhou Huazhu Pigment Co., Ltd., the same below), 15g of polyethylene glycol (molecular weight 4000, the same below) and 10g of simethicone, while stirring, while ultrasonic for 1 hour, the water-based anti-corrosion Conductive paint. The obtained paint was evenly brushed on the surface of the tinplate, and dried at 45° C. for 37 hours to obtain an anti-corrosion conductive coating.

[0019] The preparation of the ab...

Embodiment 2

[0021] Add 400g of deionized water, 5g of sodium dodecylbenzenesulfonate and 80g of polyaniline / attapulgite nano-conductive composite material powder with a volume resistivity of 20Ω·cm to the sand mill in turn, grind for 0.5 hours, and transfer to In an ultrasonic dispersing mixer; add 300g of fluorocarbon emulsion, 200g of conductive mica powder with a volume resistivity of 50Ω·cm, 10g of polyethylene glycol and 5g of simethicone into the ultrasonic dispersing mixer in sequence, while stirring, ultrasonic 0.5 hours, a water-based anti-corrosion conductive coating was prepared. The obtained paint was uniformly brushed on the surface of the tinplate, and dried at 5° C. for 72 hours to obtain an anti-corrosion conductive coating.

Embodiment 3

[0023] Add 200g of deionized water, 15g of sodium dodecylbenzenesulfonate and 200g of polyaniline / attapulgite nano-conductive composite material powder with a volume resistivity of 20Ω·cm to the sand mill in turn, grind for 2 hours, and transfer to In the ultrasonic dispersing mixer; add 600g of fluorocarbon emulsion, 50g of conductive mica powder with a volume resistivity of 50Ω·cm, 20g of polyethylene glycol and 15g of simethicone into the ultrasonic dispersing mixer in sequence, while stirring, ultrasonic 2 hours, a water-based anti-corrosion conductive coating was prepared. The obtained paint was uniformly brushed on the surface of the tinplate, and dried at 80° C. for 2 hours to obtain an anti-corrosion conductive coating.

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Abstract

The invention discloses an aqueous anticorrosive conductive coating containing conductive polymer and a preparation method of the aqueous anticorrosive conductive coating. The aqueous anticorrosive conductive coating contains the following components in percentage by mass: 30%-60% of fluorocarbon emulsion, 8%-20% of polymer conductive powder, 5%-20% of conductive mica powder, 20%-40% of deionizedwater and 2%-5% of film-forming adjuvant, wherein the polymer conductive powder is one of polyaniline / attapulgite nano conductive composite material and polypyrrole / attapulgite nano conductive composite material. The preparation method is as follows: firstly, successively adding the deionized water, 0.5%-1.5% of wetting dispersing agent and the polymer conductive powder in a sand mill to grind for 0.5-2 hours; and transferring the ground mixture to an ultrasound dispersing mixer, successively adding the fluorocarbon emulsion, the conductive mica powder, the film-forming adjuvant and 0.5%-1.5%of defoamer, carrying out ultrasonic dispersion for 0.5-2 hours while stirring, and then obtaining the aqueous anticorrosive conductive coating. By using the preparation method, the mechanical property, conductivity and anticorrosion performance of the coating are obviously improved.

Description

technical field [0001] The invention belongs to the field of water-based coatings, in particular to a water-based anti-corrosion conductive coating containing conductive polymers and a preparation method thereof. Background technique [0002] Water-based paint is a new green and environmentally friendly paint, which is widely used in furniture, flooring, electronics and other industries because of its outstanding advantages such as no volatile organic compounds, less environmental pollution, and energy saving. Among them, the water-based fluorocarbon coating is a weather-resistant water-based fluorocarbon coating with water-based fluorocarbon resin as the main component. The fluorocarbon resin uses a strong C-F bond as the skeleton and has good crystallinity. Compared with other resins, it has durable weather resistance and excellent Excellent stain resistance, ideal scrub resistance, excellent chemical resistance and good salt spray resistance. [0003] As an importa...

Claims

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Application Information

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IPC IPC(8): C09D127/12C09D5/24
Inventor 姚超王磊磊汪信李锦春钱大庆张辉耀郝青丽朱俊武
Owner 溧阳常大技术转移中心有限公司
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