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Super thin expansion type fire-proof corrosion resistant paint for steel structure and its preparing method

A technology for anti-corrosion coatings and profiles, applied in the direction of coatings, etc., can solve the problems of single function of fire-resistant coatings and anti-corrosion coatings, limited application fields, etc., achieve good anti-corrosion function, wide application, and improve the effect of fire resistance limit

Inactive Publication Date: 2003-04-09
TONGJI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, the above-mentioned fireproof coatings and anti-corrosion coatings only have a single function, which limits their application fields to a certain extent.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049]For the preparation formula of the silicone acrylate resin, refer to Table 1 for the preparation formula of the silicone acrylate resin of the present invention. First, prepare according to the formula of silicone acrylate resin 1 in Table 1. After sealing the reaction vessel, vacuumize and blow nitrogen for 5 minutes each, and repeat the operation three times to fully remove the air in the vessel. Add the estimated amount of octamethylcyclotetrasiloxane, vinylcyclotetrasiloxane, trimethylchlorosilane and tetramethylammonium hydroxide, and then evacuate until there are no escaped bubbles in the liquid. The temperature was raised to 140° C. for 6 hours to obtain a viscous liquid. Cool to about 100°C, vacuumize to remove unreacted monomers to obtain silicone resin.

[0050] Mix butyl acrylate, methyl methacrylate, acrylic acid and dibenzoyl peroxide in proportion and set aside. In a reaction vessel equipped with a stirrer, a condenser, a thermometer and a head tank, add...

Embodiment 2

[0053] Silicone acrylate resin 2 was prepared according to the formula in Table 1. The reaction temperature was 170° C., the reaction time was 2 hours, and the rest of the preparation method was the same as in Example 1. The resulting product had an initial melting temperature of 111°C.

Embodiment 3

[0055] Please refer to Table 3 for 4 formulations of fire retardant coatings of the present invention. First, according to the formula 1 in Table 3, add the high chlorinated polyethylene solution and the silicone acrylate resin into the mixing tank, add the four kinds of fire prevention additives and zinc oxide of the present invention under stirring, after stirring evenly, put it into the sand mill Grind for one pass, then add expanded graphite, mix evenly, and discharge into barrels. The properties of the resulting fireproof coating of the present invention are shown in Formulation 1 of Table 4.

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PUM

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Abstract

The present invention relates to one double-function paint for fireproofing and anticorrosion of steel structure and its preparation process. Available paint has only single function of either fireproofing or anticorrosion and thus limited application range. The present invention adopts polyvinyl perchloride and organosilicon modified acrylic resin as main filming material and adds cyanuramide phosphate and expanding graphite into common polytriammonium phasphate as fireproof assistant to constitute foaming material. The present invention has greatly raised foaming rate and the foamed layer has thickness of 30-50 times the original coating thickness and fireproof limit up to 90 min. The paint has simple preparation process, low cost and wide application.

Description

technical field [0001] The invention relates to a fireproof and anticorrosion dual-function coating for steel structures. The invention further relates to a preparation method of the fireproof and anticorrosion dual-function coating for steel structures. Background technique [0002] There are many types of existing steel structure fireproof coatings, which can be divided into three types according to their material forms: water-based, solvent-based and powder-type; according to the thickness of the coating, they can be divided into three types: thick type, thin type and ultra-thin type; The mechanism can be divided into three types: thermal insulation type, expansion type and non-expansion type. At present, the commonly used fireproof coatings for steel structures are mainly classified into three types: thick, thin and ultra-thin. Among them, thin and ultra-thin fireproof coatings have better fireproof performance and decorative performance, and are the development directi...

Claims

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Application Information

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IPC IPC(8): C09D5/00C09D123/28
Inventor 王国建许乾慰刘琳
Owner TONGJI UNIV
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