A kind of corrosion-resistant heat-conducting coating and preparation method thereof
A heat-conducting coating and corrosion-resistant technology, applied in anti-corrosion coatings, epoxy resin coatings, coatings, etc., can solve the problems of poor coating adhesion, poor corrosion resistance, poor dispersion of filler boron nitride, etc. Achieve the effects of increasing thermal conductivity and corrosion resistance, improving barrier performance, and prolonging the diffusion channel of corrosive media
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Embodiment 1
[0026] A corrosion-resistant thermally conductive coating includes the following components by weight: 100 parts of water-based film-forming resin, 30 parts of curing agent, 0.4 parts of leveling agent, 0.2 parts of defoamer, 10 parts of carboxylic acid modified boron nitride, fluorine 1.5 parts of graphene oxide and 50 parts of diluent.
[0027] 1) Add hexagonal boron nitride micro-nano powder with a particle size of less than 20 μm into a reaction kettle filled with hydrogen peroxide at a concentration of 30%, so that the mass ratio of boron nitride to hydrogen peroxide is 1:50, and after ultrasonic dispersion for 5 minutes, the The reaction kettle was placed in a water bath at 100°C for 48 hours. During the reaction, it was sonicated for 15 minutes every 3 hours. After the reaction, the solvent was evaporated, and the solid was washed with deionized water for 3 times, and dried in vacuum to obtain hydroxy boron nitride.
[0028] 2) Add deionized water to the hydroxyl boron ...
Embodiment 2
[0031]A corrosion-resistant thermally conductive coating includes the following components by weight: 110 parts of water-based film-forming resin, 35 parts of curing agent, 0.3 parts of leveling agent, 0.3 parts of defoamer, 15 parts of carboxylic acid modified boron nitride, fluorine 1.0 parts of graphene oxide and 60 parts of diluent.
[0032] 1) Add hexagonal boron nitride micro-nano powder with a particle size of less than 20 μm into a reaction kettle filled with 30% hydrogen peroxide, so that the mass ratio of boron nitride to hydrogen peroxide is 1: 100, and after ultrasonic dispersion for 5 minutes, the The reaction kettle was placed in a water bath at 100°C for 48 hours. During the reaction, it was sonicated for 15 minutes every 3 hours. After the reaction, the solvent was evaporated, and the solid was washed with deionized water for 3 times, and dried in vacuum to obtain hydroxy boron nitride.
[0033] 2) Add deionized water to the hydroxyl boron nitride obtained in s...
Embodiment 3
[0036] A corrosion-resistant thermally conductive coating comprises the following components by weight: 120 parts of water-based film-forming resin, 40 parts of curing agent, 0.5 parts of leveling agent, 50.4 parts of defoaming agent, 20 parts of carboxylic acid modified boron nitride, fluorine 0.5 parts of graphene oxide and 70 parts of diluent.
[0037] 1) Add hexagonal boron nitride micro-nano powder with a particle size of less than 20 μm into a reaction kettle filled with hydrogen peroxide at a concentration of 30%, so that the mass ratio of boron nitride to hydrogen peroxide is 1: 150. After ultrasonic dispersion for 5 minutes, the The reaction kettle was placed in a water bath at 100°C for 48 hours. During the reaction, it was sonicated for 15 minutes every 3 hours. After the reaction, the solvent was evaporated, and the solid was washed with deionized water for 3 times, and dried in vacuum to obtain hydroxy boron nitride.
[0038] 2) Add deionized water to the hydroxyl...
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