Steel bar anti-corrosion paint for autoclaved aerated concrete slab and preparation method of steel bar anti-corrosion paint

A concrete slab, autoclaved aeration technology, applied in anti-corrosion coatings, coatings, carboxyl rubber coatings, etc., can solve the problems of low adhesion between paint and steel bars, affecting the durability of concrete structures, and easy corrosion.

Active Publication Date: 2021-05-28
广西建工集团建筑产业投资有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantages of the anti-corrosion paint prepared with these four raw materials are: the surface of the cage dipped in paint after anti-corrosion is easy to crack, especially there are many fine cracks on the large surface of the connecting piece, and some small bubbles are attached to the upp...

Method used

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  • Steel bar anti-corrosion paint for autoclaved aerated concrete slab and preparation method of steel bar anti-corrosion paint
  • Steel bar anti-corrosion paint for autoclaved aerated concrete slab and preparation method of steel bar anti-corrosion paint
  • Steel bar anti-corrosion paint for autoclaved aerated concrete slab and preparation method of steel bar anti-corrosion paint

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] A preparation method for steel bar anticorrosion paint for autoclaved aerated concrete slabs, comprising the following steps:

[0028] S1: Weigh 350kg of epoxy resin, 50kg of carboxylated styrene-butadiene latex, 18kg of aniline, 20kg of β-naphthalenesulfonic acid, 20kg of ammonium persulfate, 1kg of strontium molybdate, 8kg of aluminum tripolyphosphate, 1kg of zinc calcium phosphomolybdate, and silicon carbide 1kg, sodium dodecylbenzenesulfonate 0.2kg, calcium hydroxide 4kg, ammonium polycarboxylate 0.1kg, N-methylpyrrolidone 0.1kg, emulsified silicone oil 0.05kg, polyether siloxane copolymer 0.1kg, ammonia water 0.05 kg, N,N-dimethylethanolamine 0.05kg, ethylene glycol monobutyl ether 0.5kg, polyamide 20kg; disperse strontium molybdate in water to obtain dispersion A, aniline, β-naphthalenesulfonate at 1°C Dissolve the acid in the dispersion liquid A, ultrasonically disperse for 5 minutes under the ultrasonic intensity of 200W to obtain a mixed liquid, add ammonium pe...

Embodiment 2

[0032] A preparation method for steel bar anticorrosion paint for autoclaved aerated concrete slabs, comprising the following steps: S1: weighing 200kg of epoxy resin, 80kg of carboxylated styrene-butadiene latex, 15kg of aniline, 30kg of β-naphthalenesulfonic acid, 15kg of ammonium persulfate, Strontium molybdate 2kg, aluminum tripolyphosphate 5kg, zinc calcium phosphomolybdate 2kg, silicon carbide 3kg, sodium dodecylbenzenesulfonate 0.5kg, calcium hydroxide 8kg, ammonium polycarboxylate 0.1kg, N-methylpyrrolidone 3kg, emulsified silicone oil 1kg, octanol 1kg, polyether siloxane copolymer 2kg, 2-amino-2-methyl-1-propanol 2kg, propylene glycol methyl ether 0.8kg, polyamide 12kg; disperse strontium molybdate in Dispersion A was obtained in water, and aniline and β-naphthalenesulfonic acid were dissolved in dispersion A at 2°C, and ultrasonically dispersed at 300W ultrasonic intensity for 20 minutes to obtain a mixed solution, and ammonium persulfate was added dropwise to the mix...

Embodiment 3

[0036]A preparation method for steel bar anticorrosion paint for autoclaved aerated concrete slabs, comprising the following steps: S1: weighing 500kg of epoxy resin, 85kg of carboxylated styrene-butadiene latex, 10kg of aniline, 31kg of β-naphthalenesulfonic acid, 17kg of ammonium persulfate, Strontium molybdate 2kg, aluminum tripolyphosphate 7kg, zinc calcium phosphomolybdate 3kg, silicon carbide 4kg, sodium dodecylbenzenesulfonate 0.6kg, calcium hydroxide 2kg, ammonium polycarboxylate 0.2kg, N-methylpyrrolidone 1.3kg, emulsified silicone oil 1.1kg, polyether siloxane copolymer 2kg, ammonia water 1.3kg, triethanolamine 0.2kg, propylene glycol methyl ether 0.8kg, polyamide 15kg; disperse strontium molybdate in water to obtain dispersion A, in Dissolve aniline and β-naphthalenesulfonic acid in dispersion liquid A at 2°C, and disperse ultrasonically at 300W for 20 minutes to obtain a mixed liquid. Add ammonium persulfate dropwise to the mixed liquid, and then magnetically stir t...

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PUM

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Abstract

The invention discloses a preparation method of steel bar anticorrosive paint for autoclaved aerated concrete planks, which comprises the following steps: S1, adding aniline and beta-naphthalene sulfonic acid into strontium molybdate dispersion liquid, adding ammonium persulfate, and reacting to obtain a material A; s2, adding silicon carbide into a sodium dodecyl benzene sulfonate solution to obtain dispersion liquid B; adding ammonium polycarboxylate and a film-forming agent into aluminum tripolyphosphate, and carrying out enveloping reaction with the dispersion liquid B to obtain a compound, then crushing and sieving zinc calcium phosphomolybdate, and carrying out enveloping reaction with the compound to obtain a material B; s3, mixing and stirring carboxylic butadiene-styrene latex, the material A, the material B, calcium hydroxide, epoxy resin, a dispersing agent, a defoaming agent, a wetting agent, a pH regulator and a curing agent to obtain the coating. The invention further discloses the steel bar anti-corrosion paint for the autoclaved aerated concrete slab. The anticorrosive paint is prepared from polyaniline, aluminum triphosphate, calcium hydroxide and other materials, so that the product is low in toxicity and environmentally friendly, reduces environmental pollution, and has excellent impact resistance, salt spray resistance and corrosion resistance.

Description

technical field [0001] The invention belongs to the technical field of anticorrosion paint preparation, and in particular relates to a steel bar anticorrosion paint for an autoclaved aerated concrete slab and a preparation method thereof. Background technique [0002] Steel bar anti-corrosion paint is a necessary material in the production of concrete materials. It uses carboxylated styrene-butadiene latex as the main raw material, slaked lime and quartz sand as auxiliary raw materials, and iron oxide red as the toner. Stir in the medium, stir well and pour into the dipping tank for use. The disadvantages of the anti-corrosion paint prepared with these four raw materials are: the surface of the cage dipped in paint after anti-corrosion is easy to crack, especially there are many fine cracks on the large surface of the connecting piece, and some small bubbles are attached to the upper surface of the longitudinal steel bar, which is easy to rust , The heat-resistant corrosion...

Claims

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Application Information

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IPC IPC(8): C09D163/00C09D113/02C09D5/08C09D7/62C09D7/61C09D7/65
CPCC09D163/00C09D5/08C09D7/62C09D7/61C09D7/65C08K2003/327C08K2003/2206C08L13/02C08L79/02C08K13/06C08K9/10C08K3/24C08K3/34C08K3/32C08K3/22
Inventor 舒凯谢国星叶丹玫蒙鸿冼义林罗然韦华春马林林
Owner 广西建工集团建筑产业投资有限公司
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