Fireproof coating for steel structures

A technology for fire retardant coatings and steel structures, applied in fire retardant coatings, epoxy resin coatings, coatings, etc., can solve the problems of fire retardant coatings failing to meet the requirements, and achieve good appearance decoration, good mechanical and chemical properties, and metal corrosion resistance. good performance

Inactive Publication Date: 2014-08-20
ANHUI JIAMU RUBBLE & PLASTIC IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Fireproof coatings for steel structures in the prior art fail to meet the requirements

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0011] A kind of steel structure fireproof paint, is made up of following components by weight: 20 parts of epoxy resin, 9.5 parts of acrylic resin, 4.1 parts of No. 200 gasoline, 5 parts of xylene, 6 parts of butyl acetate, fumed silica 0.7 parts, 0.2 parts of high molecular weight polyurethane, 7 parts of pentaerythritol, 7.6 parts of acetone, 17 parts of ammonium polyphosphate, 6.5 parts of melamine, 12 parts of antimony trioxide, 3.5 parts of titanium dioxide.

[0012] The thickness of the coating film is 2mm; the fire resistance limit is 72min, and the coating has no cracking, peeling and blistering after 15 cold and hot cycles; the drying time is fast, the surface is dry for 5 hours, the moisture resistance is good, and the coating is water resistant for 24 hours. Shedding phenomenon.

Embodiment 2

[0014] A fireproof coating for steel structures, which consists of the following components in parts by weight: 15 parts of epoxy resin, 7 parts of acrylic resin, 3.75 parts of No. 200 gasoline, 4 parts of xylene, 5 parts of butyl acetate, fumed silica 0.5 parts, 0.1 parts of high molecular weight polyurethane, 6 parts of pentaerythritol, 5 parts of acetone, 16 parts of ammonium polyphosphate, 5 parts of melamine, 10 parts of antimony trioxide, 2 parts of titanium dioxide.

[0015] The thickness of the coating film is 2.05mm; the fire resistance limit is 69min, and the coating has no cracking, peeling and blistering after 15 cold and hot cycles; the drying time is fast, the surface is dry for 6.1h, the moisture resistance is good, and the coating is water resistant for 24h. Blistering and exfoliation.

Embodiment 3

[0017] A fireproof coating for steel structures, which consists of the following components in parts by weight: 25 parts of epoxy resin, 13 parts of acrylic resin, 4.5 parts of No. 200 gasoline, 6 parts of xylene, 7 parts of butyl acetate, fumed silica 0.9 parts, 0.3 parts of high molecular weight polyurethane, 8 parts of pentaerythritol, 9 parts of acetone, 18 parts of ammonium polyphosphate, 8 parts of melamine, 14 parts of antimony trioxide, and 5 parts of titanium dioxide.

[0018] The thickness of the coating film is 2.02mm; the fire resistance limit is 63min, and the coating has no cracking, peeling and blistering after 15 cold and hot cycles; the drying time is fast, the surface is dry for 5.7h, the moisture resistance is good, and the coating is water resistant for 24h. Blistering and exfoliation.

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Abstract

The invention discloses a fireproof coating for steel structures and belongs to the technical field of chemical industry. The fireproof coating consists of the following components in parts by weight: 15-25 parts of epoxy resin, 7-13 parts of acrylic resin, 3.7-4.5 parts of No. 200 gasoline, 4-6 parts of dimethyl benzene, 5-7 parts of butyl acetate, 0.5-0.9 part of fumed silica, 0.1-0.3 part of a dispersant, 6-8 parts of pentaerythritol, 5-10 parts of acetone, 16-18 parts of ammonium polyphosphate, 5-8 parts of melamine, 10-14 parts of antimony trioxide and 2-5 parts of titanium dioxide powder. The fireproof coating disclosed by the invention has good mechanical and physicochemical performance and can form a good foam heat insulating layer in a fire, and the foam layer does not drop even at a high temperature; the fireproof coating disclosed by the invention is good in metal corrosion resistance and good in appearance decoration.

Description

technical field [0001] The invention relates to the technical field of chemical industry, in particular to a fireproof coating for steel structures. Background technique [0002] Since steel structures have many advantages such as high strength, strong load-bearing capacity, light weight, small footprint, convenient component manufacturing and installation, and wood saving, they are more and more widely used in construction. With the continuous development of our country's construction industry, various buildings have sprung up and are increasing day by day, and the requirements of various departments for using steel structure fireproof coatings as steel fireproof protection are also increasing day by day. As a building material, steel has some unavoidable defects in fire protection. Its mechanical properties will drop sharply due to the rise of temperature. Due to overcoming the deficiencies in fire protection in practical applications, steel structures must be treated wi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D163/00C09D133/00C09D5/18C09D7/12
Inventor 叶春会王泽平
Owner ANHUI JIAMU RUBBLE & PLASTIC IND
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