Conductive anticorrosive coating using organic silver as light curing accelerator
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A technology of conductive anti-corrosion and light curing agent, applied in the field of coatings, can solve the problems of insufficient conductivity and compactness, and difficulty in obtaining raw materials.
Active Publication Date: 2018-09-14
YUNNAN UNIV +1
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[0009] The purpose of the present invention is to overcome the shortcomings of existing technologies such as insufficient electrical conductivity and compactness, and the difficulty in obtaining raw materials, and
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Embodiment 1
[0021] 15g of neoprene emulsion, 15ml of ethyl acetate, 6ml of butanol, 13g of surface-modified colloidal graphite, 32g of graphite powder with a surface-modified particle diameter of about 1 to 5 microns, 0.6g of organic bentonite, dispersed into Uniform slurry, 1 N-p-toluenesulfonylpyridine extracted Ag+ organic amine solution (containing 5% silver) 5ml was added and stirred for 15 minutes, the paint was painted on the steel sheet, and the performance test of the paint film coating was carried out after the film was formed and dried. .
Embodiment 2
[0023] 13g of perchlorethylene resin, 13ml of dibutyl carbitol, 6ml of butanol, 13g of surface-modified colloidal graphite, 36g of surface-modified graphite powder with a particle size of about 1-5 microns, 0.6g of organic bentonite, and disperse with high-speed grinding machine to disperse into a uniform slurry, add 5ml of organic amine solution (containing 8% silver) of 1 N-p-toluenesulfonylpyridine to extract Ag+ and stir evenly for 15 minutes, paint the paint on the steel sheet, and coat the paint film after the film is hard-dried Run performance tests.
Embodiment 3
[0025] 13g of perchlorethylene resin, 13ml of dibutyl carbitol, 6ml of butanol, 13g of surface-modified colloidal graphite, 36g of surface-modified graphite powder with a particle size of about 1-5 microns, 0.6g of organic bentonite, and disperse with high-speed grinding machine to disperse into a uniform slurry, add 5ml of organic amine solution (containing 12% silver) of N-p-toluenesulfonylpyridine to extract Ag+ and stir evenly for 15 minutes, paint on the steel sheet, and coat the paint film after the film is hard-dried Run performance tests.
[0026] Comparative example
[0027] 15g of acrylic epoxy resin, 15ml of ethyl acetate, 6ml of butanol, 13g of colloidal graphite, 32g of graphite powder with a particle size of about 1-5 microns, dispersed into a uniform slurry with a high-speed grinding disperser, and 5ml of polyethylene polyamine solution was added to stir Evenly for 15 minutes, brush the paint on the steel sheet, and perform a performance test on the paint film ...
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Abstract
The invention provides a conductive anticorrosive coating using organic silver as a light curing accelerator, belongs to the field of anticorrosive conductive coatings and relates to extraction of aqueous phase Ag+ into an organic phase to be as a photothermal curing agent for organic resins by using N-p-toluenesulfonylpyridine so as to be used for carbon-based anticorrosive coatings, increasingphotocuring effect, promoting film densification and increasing conductivity. Specifically, after the conductive anticorrosive coatings prepared by adding an organic solution of the N-p-toluenesulfonylpyridine is coated on the metal member, a formed film layer is under the photothermal effect of sunlight and consequently, curing speed is accelerately and densification process of the film is promoted; silver complex organic matter can reduce silver ions under photothermal conditions and generate nano silver particles in situ, and silver colloid in a conductive chain can improve conductivity. When the conductive anticorrosive coating is applied to a metal part, the cured anticorrosive coating has the advantages of having excellent weather resistance, oil resistance, salt spray resistance, and acid, alkali, water and other corrosive substance resistance, good conductivity and permeability resistance, and displaying excellent ground net composite anti-corrosion grounding performance.
Description
technical field [0001] The invention belongs to the technical field of coatings, in particular to conductive anticorrosion coatings. Background technique [0002] As a structural material, metal has excellent strength and electrical conductivity, but iron-based metals cannot meet the corrosion resistance performance. In order to prevent these problems, it is common to form a coating with a corrosion-resistant layer on the metal, and a corrosion-resistant paint is one such material. [0003] For the components of the grounding grid, corrosion will lead to poor grounding performance and poor thermal stability. When the system is struck by lightning or a short-circuit accident occurs, the instantaneous high current may cause the grounding grid to burn out, thereby causing equipment damage and even endangering Personal safety. Therefore, effective anti-corrosion measures must be taken for the grounding grid to ensure that the grounding grid can operate well within the design s...
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