Hydrocarbon-resistant indoor thin fireproofing coating for steel structures

Abstract

The invention discloses a hydrocarbon-resistant indoor thin fireproofing coating for steel structures, aiming at solving the problems of general thin fireproofing coatings for steel structures which are easy to peel off in case of fire disaster, poor in adhesion performance, and poor in fireproofing and heat insulation effects. The technical scheme is as follows: the fireproofing coating is prepared from a component A: TBA type epoxy resin fireproofing coating, and a component B, namely polyamide 300 curing agent, at (1-3):1 in parts by mass, wherein the component A, namely TBA type epoxy resin fireproofing coating, consists of the following materials in parts by weight: 15-22 parts of TBBP-A epoxy resin, 10-15 parts of first curing agent, 20-24 parts of ammonium polyphosphate, 5-10 parts of melamine, 5-10 parts of pentaerythritol, 1-5 parts of antimonous oxide, 1-5 parts of chlorinated paraffin, 20-25 parts of aluminum hydroxide and 15-20 parts of zinc borate. The fireproofing coating has the advantages of good foaming effect, massive generation of carbide, little smoke, strong adhesion force, good acid-base resistance property and good fireproofing and heat insulation effects.

Description

technical field [0001] The invention belongs to the technical field of fireproof coatings, and relates to a hydrocarbon-resistant indoor thin-coated steel structure fireproof coating, in particular to a hydrocarbon-resistant indoor thin-coated steel structure fireproof coating with good adhesion and good fireproof and heat insulation effects. Background technique [0002] The frames of modern large-scale buildings and petrochemical facilities mostly use steel structures. However, the thermal conductivity of steel is generally 52W / (m·K). The yield strength drops sharply to about 40% of the normal temperature state and loses its bearing capacity, so fire protection must be carried out on the steel structure. It is undoubtedly one of the most economical, convenient and effective methods to protect steel structures with intumescent fire retardant coatings. The intumescent fireproof coating is sprayed on the steel surface, and when the coating is exposed to fire, it foams and ex...

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Problems solved by technology

[0004] The purpose of the present invention is to overcome the deficiencies of the prior art, and to design a hydrocarbon-resistant indoor thin-coated steel structure fireproof coating, which solves the ubiquitous problems of thin-coated steel structure fireproof coatings that are easy to fall off in the event of a fire, poor adhesion, and fireproof. The problem of poor insulation

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