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Expanding type steel structure fireproof and anticorrosion coating and preparation method thereof

A technology for anti-corrosion coatings and section steel, applied in the direction of anti-corrosion coatings, conductive coatings, coatings, etc., can solve the problems of reducing the service life of materials, losing the protection of bottom materials, and poor compatibility, so as to improve the anti-corrosion performance and improve Effects of fireproof and anticorrosion performance, scrub resistance

Active Publication Date: 2013-02-06
XIAMEN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are two major defects in this approach: 1) the anti-rust and anti-corrosion coating is usually red lead alkyd resin or zinc-rich epoxy resin, which causes serious pollution to the environment; 2) between the anti-rust and anti-corrosion coating and the fireproof coating There is a certain difference in adhesion and poor compatibility. After long-term use, the two layers of paint on the material will peel off and fall off, and then lose the protection of the bottom material, thus reducing the service life of the material.
So far, there are no patents and literature reports related to coatings with fireproof and anti-corrosion functions for steel structures

Method used

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  • Expanding type steel structure fireproof and anticorrosion coating and preparation method thereof
  • Expanding type steel structure fireproof and anticorrosion coating and preparation method thereof
  • Expanding type steel structure fireproof and anticorrosion coating and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1～5

[0029] Step 1. Add 9.1g of ferric chloride hexahydrate, 4.4g of sodium dodecylbenzenesulfonate, and 1g of montmorillonite into 20mL of deionized water, stir evenly, inject 1mL of pyrrole monomer with a syringe, and the system turns black rapidly , Under the protection of nitrogen, react at room temperature for 12h. Ultrasonic dispersion is carried out in water, followed by centrifugation, and the obtained precipitate is repeatedly washed with deionized water until the filtrate is neutral. Vacuum drying at 60° C. for 24 hours, and grinding to obtain nano-montmorillonite / polypyrrole composite powder or nano-montmorillonite / polyaniline composite powder.

[0030] Step 2. Add titanium dioxide, calcium carbonate, talc, and kaolin into the high-speed disperser, gradually heat to 105°C, maintain the temperature for 10 minutes, stop heating, add silane coupling agent KH550, and disperse at high speed for 40 minutes.

[0031] Step 3. When the temperature is lower than 45°C, add hydroxy...

Embodiment 6

[0036] Example 6 (enlarged experiment, according to the conditions of implementation 1) 15.2kg of titanium dioxide, 12.2kg of light calcium, 22.8kg of talcum powder, and 15.2kg of kaolin were added to the high-speed disperser according to the proportioning ratio, and gradually heated to 105°C to maintain the temperature 10min, stop heating, add silane coupling agent, disperse at high speed for 40min, when the temperature is lower than 45℃, add 43.5kg modified acrylic resin, 86.7kg silicone acrylic resin, 120.5kg deionized water, 6.64kg tributyl phosphate in batches Ester, 67.3kg ammonium polyphosphate, 36.4kg melamine phosphate, 14.2kg sorbitol, 28.4kg pentaerythritol, 15.9kg urea, 31.7kg melamine, 4.6kg BYK-306, 35.8kg nano-montmorillonite / polyaniline composite powder, mixed for 120min After fully dissolving and dispersing, the material is introduced into a sand mill, ground, discharged, sieved and packaged. The properties of the obtained fireproof and anticorrosion coatings ...

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Abstract

The invention relates to a coating, and provides an expanding type steel structure fireproof and anticorrosion coating which integrates an anticorrosion coating layer and a fireproof coating layer. The utility model also provides a preparation method of the expanding type steel structure fireproof and anticorrosion coating. The raw material components comprise montmorillonite, FeCI3.6H2O, pyrrole or aniline, sodium dodecyl benzene sulfonate, surface treatment agent, dispersing agent, base resin, plasticizing agent, dehydrating and char-forming catalyst, char-forming agent, foaming agent pigment and filler, anticorrosion filler, flow agent and film forming additive. Waterborne silicone-acrylate resin and hydroxyl acrylic resin serve as the base resin to replace traditional oleoresin, thereby achieving zero VOC (volatile organic compound) discharge; a nanometer montmorillonite and conducting polymer composite material with an intercalated structure is utilized as conducting filler, so that the coating has excellent anticorrosion performance; and meanwhile, an ultrathin expanding type fireproof component is added, and the ratio of the compound components is collaboratively optimized, thereby solving the problems that the compatibility between the two layers is poor and the layers are easy to fall off, and reducing the cost.

Description

technical field [0001] The invention relates to a paint, in particular to an intumescent fireproof and anticorrosion paint for steel structures and a preparation method thereof. Background technique [0002] Fire is one of the natural disasters that often happen to human beings. With the development of economy and social progress, the losses caused by fire to people are increasing. With the rapid development of my country's infrastructure construction, especially the construction industry, more and more steel structure building materials are used in industrial, commercial and civil buildings; at the same time, in chemical, petroleum, food, light industry and other industries, the vast majority Equipment and pipelines also need fire protection. Whether it is a steel structure building, chemical equipment, or pipeline, it must be protected against embroidery and corrosion before fireproof coating. Fire-resistant coatings are also called flame-retardant coatings. By changing t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D133/04C09D133/00C09D5/08C09D7/12C09D5/24C08G73/02C08G73/06C08K3/34
Inventor 戴李宗邓胡军陈光剑郭一宾许一婷罗伟昂
Owner XIAMEN UNIV
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