A kind of solvent-free graphene-glass flake anticorrosion coating and preparation method thereof

Abstract

The invention discloses solvent-free graphene-glass flake anticorrosive coating. The solvent-free graphene-glass flake anticorrosive coating is prepared from a component A and a component B, wherein the component A comprises graphene-modifying glass flakes, epoxy resin, an active diluting agent, aluminum triphosphate, talcum powder, a defoaming agent and titanium dioxide; and the component B is anepoxy curing agent H633, and when in use, the component A and the component B are uniformly mixed in a weight ratio of 1: (0.2 to 0.25). By virtue of the graphene modifying glass flakes, the grapheneflake layer can be uniformly laid on the surface of the glass flake and fills a gap on the junction between the glass flake and the flake, so that the shielding capability of the glass flakes can beeffectively improved. The solvent-free-glass flake anticorrosive coating of the invention comprises fewer glass flakes, but has high adhesion force, can resist the impact and is better in salt resistance.

Description

technical field

[0001] The invention belongs to the field of anti-corrosion coatings, in particular to a solvent-free graphene-glass flake anti-corrosion coating and a preparation method thereof. Background technique

[0002] Corrosion coatings refer to coatings that can have long-term protective effects on the protected objects in a corrosive environment. Glass flake anti-corrosion coating is a high-build coating composed of corrosion-resistant resin as the main film-forming substance, thin glass flakes as aggregate, and various additives. Glass flake anti-corrosion coatings are widely used in the anti-corrosion engineering of metallurgy, chemical industry, petroleum, marine and other system equipment and buildings. Because the glass flakes in the coating have fish scale effect, thousands of scales are arranged in a staggered manner, forming complex twists and turns in the coating. The penetration and diffusion path of the corrosive medium makes the diffusion route of the ...

Examples

Embodiment 1

[0024] A kind of preparation of solvent-free graphene-glass flake anticorrosion coating, A component prepares raw material by following mass parts: the weight part of graphene-modified glass flake is 10 parts by weight, the weight part of epoxy resin is 30 parts, reactive dilution The weight part of the agent is 5 parts, the weight part of aluminum tripolyphosphate is 25 parts, the weight part of titanium dioxide is 20 parts, and the weight part of the defoamer is 0.2 parts.

[0025] The preparation method of the graphene-modified glass flakes in the A component comprises the steps:

[0026] (1) Mix 98% concentrated sulfuric acid and 30% hydrogen peroxide at a volume ratio of 7:3 to prepare a Piranha solution; then, place the glass scales in acetone, ethanol and distilled water for five minutes for ultrasonic cleaning, take them out and dry them ; then immerse the cleaned and dried glass flakes in Piranha solution, and stir for 30 minutes at a temperature of 90° C.; then rinse...

Embodiment 2

[0034] A kind of preparation of solvent-free graphene-glass flake anticorrosion coating, A component prepares raw material by following mass parts: the weight part of graphene-modified glass flake is 10 parts by weight, the weight part of epoxy resin is 40 parts, reactive dilution The weight part of the agent is 10 parts, the weight part of aluminum tripolyphosphate is 12 parts, the weight part of titanium dioxide is 12 parts, and the weight part of the defoamer is 0.5 parts.

[0035] The preparation method of the graphene-modified glass flakes in the A component comprises the steps:

[0036] (1) Mix 98% concentrated sulfuric acid and 30% hydrogen peroxide at a volume ratio of 7:3 to prepare a Piranha solution; then, place the glass scales in acetone, ethanol and distilled water for five minutes for ultrasonic cleaning, take them out and dry them ; then immerse the cleaned and dried glass flakes in Piranha solution, and stir for 30 minutes at a temperature of 90° C.; then rins...

Embodiment 3

[0044] A kind of preparation of solvent-free graphene-glass flake anticorrosion coating, A component prepares raw material by following mass parts: the weight part of graphene-modified glass flake is 13 parts, the weight part of epoxy resin is 35 parts, active dilution The weight part of the agent is 8 parts, the weight part of aluminum tripolyphosphate is 20 parts, the weight part of titanium dioxide is 15 parts, and the weight part of the defoamer is 0.4 parts.

[0045] The preparation method of the graphene-modified glass flakes in the A component comprises the steps:

[0046] (1) Mix 98% concentrated sulfuric acid and 30% hydrogen peroxide at a volume ratio of 7:3 to prepare a Piranha solution; then, place the glass scales in acetone, ethanol and distilled water for five minutes for ultrasonic cleaning, take them out and dry them ; then immerse the cleaned and dried glass flakes in Piranha solution, and stir for 30 minutes at a temperature of 90° C.; then rinse with distil...

technical field

[0001] The invention belongs to the field of anti-corrosion coatings, in particular to a solvent-free graphene-glass flake anti-corrosion coating and a preparation method thereof. Background technique

[0002] Corrosion coatings refer to coatings that can have long-term protective effects on the protected objects in a corrosive environment. Glass flake anti-corrosion coating is a high-build coating composed of corrosion-resistant resin as the main film-forming substance, thin glass flakes as aggregate, and various additives. Glass flake anti-corrosion coatings are widely used in the anti-corrosion engineering of metallurgy, chemical industry, petroleum, marine and other system equipment and buildings. Because the glass flakes in the coating have fish scale effect, thousands of scales are arranged in a staggered manner, forming complex twists and turns in the coating. The penetration and diffusion path of the corrosive medium makes the diffusion route of the ...

Examples

Embodiment 1

[0024] A kind of preparation of solvent-free graphene-glass flake anticorrosion coating, A component prepares raw material by following mass parts: the weight part of graphene-modified glass flake is 10 parts by weight, the weight part of epoxy resin is 30 parts, reactive dilution The weight part of the agent is 5 parts, the weight part of aluminum tripolyphosphate is 25 parts, the weight part of titanium dioxide is 20 parts, and the weight part of the defoamer is 0.2 parts.

[0025] The preparation method of the graphene-modified glass flakes in the A component comprises the steps:

[0026] (1) Mix 98% concentrated sulfuric acid and 30% hydrogen peroxide at a volume ratio of 7:3 to prepare a Piranha solution; then, place the glass scales in acetone, ethanol and distilled water for five minutes for ultrasonic cleaning, take them out and dry them ; then immerse the cleaned and dried glass flakes in Piranha solution, and stir for 30 minutes at a temperature of 90° C.; then rinse...

Embodiment 2

[0034] A kind of preparation of solvent-free graphene-glass flake anticorrosion coating, A component prepares raw material by following mass parts: the weight part of graphene-modified glass flake is 10 parts by weight, the weight part of epoxy resin is 40 parts, reactive dilution The weight part of the agent is 10 parts, the weight part of aluminum tripolyphosphate is 12 parts, the weight part of titanium dioxide is 12 parts, and the weight part of the defoamer is 0.5 parts.

[0035] The preparation method of the graphene-modified glass flakes in the A component comprises the steps:

[0036] (1) Mix 98% concentrated sulfuric acid and 30% hydrogen peroxide at a volume ratio of 7:3 to prepare a Piranha solution; then, place the glass scales in acetone, ethanol and distilled water for five minutes for ultrasonic cleaning, take them out and dry them ; then immerse the cleaned and dried glass flakes in Piranha solution, and stir for 30 minutes at a temperature of 90° C.; then rins...

Embodiment 3

[0044] A kind of preparation of solvent-free graphene-glass flake anticorrosion coating, A component prepares raw material by following mass parts: the weight part of graphene-modified glass flake is 13 parts, the weight part of epoxy resin is 35 parts, active dilution The weight part of the agent is 8 parts, the weight part of aluminum tripolyphosphate is 20 parts, the weight part of titanium dioxide is 15 parts, and the weight part of the defoamer is 0.4 parts.

[0045] The preparation method of the graphene-modified glass flakes in the A component comprises the steps:

[0046] (1) Mix 98% concentrated sulfuric acid and 30% hydrogen peroxide at a volume ratio of 7:3 to prepare a Piranha solution; then, place the glass scales in acetone, ethanol and distilled water for five minutes for ultrasonic cleaning, take them out and dry them ; then immerse the cleaned and dried glass flakes in Piranha solution, and stir for 30 minutes at a temperature of 90° C.; then rinse with distil...

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