A kind of acrylic flexible anticorrosion primer and preparation method thereof

Abstract

The invention provides an acrylic flexible anti-corrosion primer and a preparation method thereof. The primer is composed of component A and component B, and the ratio of component A and component B is 100:15-20 by weight Component A consists of flexible acrylic resin liquid with a solid content greater than 45%, dispersant, leveling agent, adhesion promoter, ultraviolet absorber, thinner, titanium dioxide, zinc yellow, talcum powder, zinc phosphate, mica powder, Composed of light calcium and bentonite; component B is an elastic isocyanate resin solution with a solid content greater than 90%; the primer can cover the stretching vibration cracks and elongation at break caused by the difference in elastic modulus between various substrates during equipment operation. Elongation ≥ 100%, tensile strength ≥ 10Mpa, and has excellent anti-corrosion function.

Description

technical field

[0001] The invention relates to the technical field of coatings, in particular to an acrylic flexible anticorrosion primer and a preparation method thereof. Background technique

[0002] For high-thickness coating systems, coating cracking will occur under the conditions of large deformation of various vehicles, equipment, facilities, construction machinery, etc., and the deformation ability of elastic substrates does not match that of ordinary coatings, resulting in primer coatings Therefore, it is urgent to develop a new type of high-quality acrylic flexible anti-corrosion primer, which not only requires excellent physical properties, but also has anti-corrosion and weather resistance effects when used alone, and requires its It effectively solves the problem of detachment and cracking of the existing primer due to stretching and deformation of the matching elastic coating, and has a good matching with the elastic coating. Contents of the invention [00...

Examples

Embodiment 1

[0036] A kind of acrylic flexible anticorrosion primer, is prepared by following method:

[0037] Mix 50 parts of butyl acetate, 30 parts of xylene, 10 parts of mixed dibasic acid ester, and 10 parts of propylene glycol methyl ether acetate to obtain a diluent.

[0038] 45g of homemade flexible acrylic resin with a solid content greater than 45%, 0.5g of dispersant BYK161, 15g of titanium dioxide, 5g of zinc yellow, 8g of talc powder, 4g of zinc phosphate, 1.5g of mica powder, 1.5g of light calcium, 0.2g of bentonite, Add 8.5g of diluent into the mixing container and stir in sequence, then grind until the particle size is below 35μm, add 0.2g of leveling agent BYK306, 0.3g of adhesion promoter EDL-6026F, 0.3g of UV absorber Tinuvin 1130 and 10g of diluent to adjust the solid The content is more than 55% to obtain the first component.

[0039] Where: Homemade flexible acrylic

[0040]

[0041] 1) Divide xylene and benzoyl peroxide into five equal parts for subsequent use a...

Embodiment 2

[0054] Preparation of a novel acrylic flexible anti-corrosion primer:

[0055] Mix 40 parts of butyl acetate, 30 parts of xylene, 15 parts of mixed dibasic acid ester, and 15 parts of propylene glycol methyl ether acetate to obtain a diluent.

[0056] 48g of homemade flexible acrylic resin with a solid content greater than 45%, 0.6g of dispersant DA-703-50, 14g of titanium dioxide, 7g of zinc yellow, 8g of talcum powder, 5g of zinc phosphate, 1.2g of mica powder, 1.2g of light calcium, Add 0.2g of bentonite and 3.9g of diluent into the mixing container and stir in sequence, then grind until the particle size is below 35μm, add 0.2g of leveling agent LHP91, 0.3g of adhesion promoter EDL-6019B, 0.4g of ultraviolet absorber Tinuvin 5060 and dilute 10g of the agent is used to adjust the solid content to be more than 55% to obtain the first component.

[0057] Where: Homemade flexible acrylic

[0058]

[0059] 1) Divide xylene and benzoyl peroxide into five equal parts for sub...

Embodiment 3

[0072] Preparation of a novel acrylic flexible anti-corrosion primer:

[0073] Mix 45 parts of butyl acetate, 35 parts of xylene, 10 parts of mixed dibasic acid ester, and 10 parts of propylene glycol methyl ether acetate to obtain a diluent.

[0074] 50g self-made flexible acrylic resin with a solid content greater than 45%, 0.8g dispersant BYK110, 13g titanium dioxide, 7g zinc yellow, 7g talcum powder, 5g zinc phosphate, 2g mica powder, 2g light calcium, 0.3g bentonite, diluent Add 1.8g into the mixing container and stir in turn, then grind until the particle size is below 35μm, add 0.3g of leveling agent BYK300, 0.4g of adhesion promoter EDL-6019B, 0.4g of ultraviolet absorber Tinuvin 5060 and 10g of diluent to adjust the solid content to More than 55% get A component.

[0075] Where: Homemade flexible acrylic

[0076]

[0077] 1) Divide xylene and benzoyl peroxide into five equal parts for subsequent use according to the specified amount in the formula;

[0078] 2) A...

technical field

[0001] The invention relates to the technical field of coatings, in particular to an acrylic flexible anticorrosion primer and a preparation method thereof. Background technique

[0002] For high-thickness coating systems, coating cracking will occur under the conditions of large deformation of various vehicles, equipment, facilities, construction machinery, etc., and the deformation ability of elastic substrates does not match that of ordinary coatings, resulting in primer coatings Therefore, it is urgent to develop a new type of high-quality acrylic flexible anti-corrosion primer, which not only requires excellent physical properties, but also has anti-corrosion and weather resistance effects when used alone, and requires its It effectively solves the problem of detachment and cracking of the existing primer due to stretching and deformation of the matching elastic coating, and has a good matching with the elastic coating. Contents of the invention [00...

Examples

Embodiment 1

[0036] A kind of acrylic flexible anticorrosion primer, is prepared by following method:

[0037] Mix 50 parts of butyl acetate, 30 parts of xylene, 10 parts of mixed dibasic acid ester, and 10 parts of propylene glycol methyl ether acetate to obtain a diluent.

[0038] 45g of homemade flexible acrylic resin with a solid content greater than 45%, 0.5g of dispersant BYK161, 15g of titanium dioxide, 5g of zinc yellow, 8g of talc powder, 4g of zinc phosphate, 1.5g of mica powder, 1.5g of light calcium, 0.2g of bentonite, Add 8.5g of diluent into the mixing container and stir in sequence, then grind until the particle size is below 35μm, add 0.2g of leveling agent BYK306, 0.3g of adhesion promoter EDL-6026F, 0.3g of UV absorber Tinuvin 1130 and 10g of diluent to adjust the solid The content is more than 55% to obtain the first component.

[0039] Where: Homemade flexible acrylic

[0040]

[0041] 1) Divide xylene and benzoyl peroxide into five equal parts for subsequent use a...

Embodiment 2

[0054] Preparation of a novel acrylic flexible anti-corrosion primer:

[0055] Mix 40 parts of butyl acetate, 30 parts of xylene, 15 parts of mixed dibasic acid ester, and 15 parts of propylene glycol methyl ether acetate to obtain a diluent.

[0056] 48g of homemade flexible acrylic resin with a solid content greater than 45%, 0.6g of dispersant DA-703-50, 14g of titanium dioxide, 7g of zinc yellow, 8g of talcum powder, 5g of zinc phosphate, 1.2g of mica powder, 1.2g of light calcium, Add 0.2g of bentonite and 3.9g of diluent into the mixing container and stir in sequence, then grind until the particle size is below 35μm, add 0.2g of leveling agent LHP91, 0.3g of adhesion promoter EDL-6019B, 0.4g of ultraviolet absorber Tinuvin 5060 and dilute 10g of the agent is used to adjust the solid content to be more than 55% to obtain the first component.

[0057] Where: Homemade flexible acrylic

[0058]

[0059] 1) Divide xylene and benzoyl peroxide into five equal parts for sub...

Embodiment 3

[0072] Preparation of a novel acrylic flexible anti-corrosion primer:

[0073] Mix 45 parts of butyl acetate, 35 parts of xylene, 10 parts of mixed dibasic acid ester, and 10 parts of propylene glycol methyl ether acetate to obtain a diluent.

[0074] 50g self-made flexible acrylic resin with a solid content greater than 45%, 0.8g dispersant BYK110, 13g titanium dioxide, 7g zinc yellow, 7g talcum powder, 5g zinc phosphate, 2g mica powder, 2g light calcium, 0.3g bentonite, diluent Add 1.8g into the mixing container and stir in turn, then grind until the particle size is below 35μm, add 0.3g of leveling agent BYK300, 0.4g of adhesion promoter EDL-6019B, 0.4g of ultraviolet absorber Tinuvin 5060 and 10g of diluent to adjust the solid content to More than 55% get A component.

[0075] Where: Homemade flexible acrylic

[0076]

[0077] 1) Divide xylene and benzoyl peroxide into five equal parts for subsequent use according to the specified amount in the formula;

[0078] 2) A...

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