Water-based epoxy multifunctional steel structure paint and preparation method thereof

Abstract

The invention relates to a water-based epoxy multifunctional steel structure paint and a preparation method thereof. The water-based epoxy multifunctional steel structure paint is composed of a component A and a component B. The component A comprises a water-based epoxy emulsion, ammonium polyphosphate, pentaerythritol, melamine, a pigment and filler, a functional nano material, a water-based defoaming agent, a water-based wetting and dispersing agent and the like. The component B is a modified amine curing agent. The preparation method comprises the following steps: (1) premixing the ammonium polyphosphate, pentaerythritol, melamine, pigment and functional nano material; (2) gradually adding the mixture obtained in the step (1) into a water solution containing the defoaming agent and wetting and dispersing agent, uniformly dispersing the materials by stirring, adding the epoxy resin emulsion, and dispersing by stirring to obtain the component A of the water-based epoxy multifunctional steel structure paint; and (3) adding the component B and defoaming agent into the component A, stirring uniformly and screening. The water-based epoxy multifunctional steel structure paint has the advantages of excellent fire and flame retardancy, simple preparation method and environment friendliness, and can be widely used for coating various steel structures.

Description

technical field

[0001] The invention relates to the field of architectural coatings, in particular to a water-based epoxy multifunctional steel structure coating and a preparation method thereof. Background technique

[0002] As a green, energy-saving and environmentally friendly material, steel structures have been widely used in buildings, but exposed steel structures have two major safety hazards: easy corrosion and low fire resistance. When the heating temperature of steel rises above 500°C, it will lose its supporting force due to the decrease of strength. At the same time, steel structures are prone to corrosion in air and humid environments, and when corrosion is severe, the strength of steel structures decreases. Therefore, in the event of fire and corrosion of the steel structure, it often leads to the collapse of the building, causing greater casualties and huge economic losses. Therefore, the steel structure must be protected against fire and corrosion to ensure...

Examples

Embodiment 1

[0027] (1) Weigh 26.66g of ammonium polyphosphate, 13.33g of pentaerythritol, 13.33g of melamine, 11.997g of titanium dioxide, and 1.333g of nano zirconium phosphate, and pre-mix them.

[0028] (2) In the dispersing kettle, add 40ml of water, 0.5ml of BNK-NSF0678, 0.5ml of DP60-6200 and 0.3ml of BNK-G408 in turn, stir at 300r / min, and mix the materials in (1) gradually join in. With the continuous addition of materials, gradually increase the stirring speed. After all the materials are added, stir at 1300r / min for 30 minutes.

[0029] (3) Reduce the stirring speed to 500r / min, add epoxy resin emulsion and 0.2ml BNK-G408, then increase the stirring speed to 1200r / min, stir and disperse for 30 minutes, and obtain component A of water-based epoxy multifunctional steel structure coating .

[0030] (4) Add the curing agent of component B (33.3g) into component A, stir at 500r / min, and then sieve to obtain a water-based epoxy multifunctional steel structure coating.

[0031] (5)...

Embodiment 2

[0033] (1) Weigh 26.66g of ammonium polyphosphate, 13.33g of pentaerythritol, 13.33g of melamine, 10.664g of titanium dioxide, and 2.666g of nano zirconium phosphate, and pre-mix them.

[0034] (2) In the dispersing kettle, add 40ml of water, 0.5ml of BNK-NSF0678, 0.5ml of DP60-6200 and 0.3ml of BNK-G408 in turn, stir at 300r / min, and mix the materials in (1) gradually join in. With the continuous addition of materials, gradually increase the stirring speed. After all the materials are added, stir at 1300r / min for 30 minutes.

[0035] (3) Reduce the stirring speed to 500r / min, add epoxy resin emulsion and 0.2ml BNK-G408, then increase the stirring speed to 1200r / min, stir and disperse for 30 minutes, and obtain component A of water-based epoxy multifunctional steel structure coating .

[0036] (4) Add the curing agent of component B (33.3g) into component A, stir at 500r / min, and then sieve to obtain a water-based epoxy multifunctional steel structure coating.

[0037] (5)...

Embodiment 3

[0039] (1) Weigh 26.66g of ammonium polyphosphate, 13.33g of pentaerythritol, 13.33g of melamine, 9.331g of titanium dioxide, and 3.999g of nano zirconium phosphate, and pre-mix them.

[0040] (2) In the dispersing kettle, add 40ml of water, 0.5ml of BNK-NSF0678, 0.5ml of DP60-6200 and 0.3ml of BNK-G408 in turn, stir at 300r / min, and mix the materials in (1) gradually join in. With the continuous addition of materials, gradually increase the stirring speed. After all the materials are added, stir at 1300r / min for 30 minutes.

[0041] (3) Reduce the stirring speed to 500r / min, add epoxy resin emulsion and 0.2ml BNK-G408, then increase the stirring speed to 1200r / min, stir and disperse for 30 minutes, and obtain component A of water-based epoxy multifunctional steel structure coating .

[0042] (4) Add the curing agent of component B (33.3g) into component A, stir at 500r / min, and then sieve to obtain a water-based epoxy multifunctional steel structure coating.

[0043] (5) ...

technical field

[0001] The invention relates to the field of architectural coatings, in particular to a water-based epoxy multifunctional steel structure coating and a preparation method thereof. Background technique

[0002] As a green, energy-saving and environmentally friendly material, steel structures have been widely used in buildings, but exposed steel structures have two major safety hazards: easy corrosion and low fire resistance. When the heating temperature of steel rises above 500°C, it will lose its supporting force due to the decrease of strength. At the same time, steel structures are prone to corrosion in air and humid environments, and when corrosion is severe, the strength of steel structures decreases. Therefore, in the event of fire and corrosion of the steel structure, it often leads to the collapse of the building, causing greater casualties and huge economic losses. Therefore, the steel structure must be protected against fire and corrosion to ensure...

Examples

Embodiment 1

[0027] (1) Weigh 26.66g of ammonium polyphosphate, 13.33g of pentaerythritol, 13.33g of melamine, 11.997g of titanium dioxide, and 1.333g of nano zirconium phosphate, and pre-mix them.

[0028] (2) In the dispersing kettle, add 40ml of water, 0.5ml of BNK-NSF0678, 0.5ml of DP60-6200 and 0.3ml of BNK-G408 in turn, stir at 300r / min, and mix the materials in (1) gradually join in. With the continuous addition of materials, gradually increase the stirring speed. After all the materials are added, stir at 1300r / min for 30 minutes.

[0029] (3) Reduce the stirring speed to 500r / min, add epoxy resin emulsion and 0.2ml BNK-G408, then increase the stirring speed to 1200r / min, stir and disperse for 30 minutes, and obtain component A of water-based epoxy multifunctional steel structure coating .

[0030] (4) Add the curing agent of component B (33.3g) into component A, stir at 500r / min, and then sieve to obtain a water-based epoxy multifunctional steel structure coating.

[0031] (5)...

Embodiment 2

[0033] (1) Weigh 26.66g of ammonium polyphosphate, 13.33g of pentaerythritol, 13.33g of melamine, 10.664g of titanium dioxide, and 2.666g of nano zirconium phosphate, and pre-mix them.

[0034] (2) In the dispersing kettle, add 40ml of water, 0.5ml of BNK-NSF0678, 0.5ml of DP60-6200 and 0.3ml of BNK-G408 in turn, stir at 300r / min, and mix the materials in (1) gradually join in. With the continuous addition of materials, gradually increase the stirring speed. After all the materials are added, stir at 1300r / min for 30 minutes.

[0035] (3) Reduce the stirring speed to 500r / min, add epoxy resin emulsion and 0.2ml BNK-G408, then increase the stirring speed to 1200r / min, stir and disperse for 30 minutes, and obtain component A of water-based epoxy multifunctional steel structure coating .

[0036] (4) Add the curing agent of component B (33.3g) into component A, stir at 500r / min, and then sieve to obtain a water-based epoxy multifunctional steel structure coating.

[0037] (5)...

Embodiment 3

[0039] (1) Weigh 26.66g of ammonium polyphosphate, 13.33g of pentaerythritol, 13.33g of melamine, 9.331g of titanium dioxide, and 3.999g of nano zirconium phosphate, and pre-mix them.

[0040] (2) In the dispersing kettle, add 40ml of water, 0.5ml of BNK-NSF0678, 0.5ml of DP60-6200 and 0.3ml of BNK-G408 in turn, stir at 300r / min, and mix the materials in (1) gradually join in. With the continuous addition of materials, gradually increase the stirring speed. After all the materials are added, stir at 1300r / min for 30 minutes.

[0041] (3) Reduce the stirring speed to 500r / min, add epoxy resin emulsion and 0.2ml BNK-G408, then increase the stirring speed to 1200r / min, stir and disperse for 30 minutes, and obtain component A of water-based epoxy multifunctional steel structure coating .

[0042] (4) Add the curing agent of component B (33.3g) into component A, stir at 500r / min, and then sieve to obtain a water-based epoxy multifunctional steel structure coating.

[0043] (5) ...

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