Finishing type fireproof coating

Abstract

A finishing type fireproof coating is prepared from, by mass, 20-30% of a vinyl chloride-vinylidene chloride polymerized emulsion, 5-15% of a styrene-acrylic emulsion, 5-10% of rutile type titanium dioxide, 2-4% of environment-friendly zinc phosphate, 4-5% of precipitated barium sulfate, 2-4% of a corrosion inhibitor, 5-8% of aluminum hydroxide, 2-4% of antimonous oxide, 2-4% of water-based chlorinated paraffin, 1-3% of an aluminum silicate fiber, 5-10% of ammonium polyphosphate, 3.5-7% of pentaerythritol, 1.5-2.4% of melamine, 0.2-0.3% of a water-based dispersant, 0.1-0.2% of a water-based defoaming agent, 0.1-0.2% of a water-based foam inhibitor, 1-2% of hydrated magnesium silicate, 0.5-1% of a water-based thickener, 0.5-1% of a neutralizer, 0.5-1% of a flash-rust inhibitor, 1-2% of a coalescing agent, 0.1-0.2% of a water-based wetting agent, and the balance of deionized water. The fireproof coating has good fireproof and heat-insulating effects, the strength and adhesive force of the fireproof coating are greatly improved, and the fireproof effect is improved by increasing the expansion ratio, reducing the heat transfer speed, reducing the damage of flame to a base body and improving the fireproof effect.

Description

technical field [0001] The invention relates to the field of fireproof coatings, in particular to a finishing type fireproof coating. Background technique [0002] Fire retardant coating belongs to a kind of special functional coating. The fire retardant coating is coated on the surface of the substrate. When a fire occurs, it can prevent the spread of the flame, control the development of the fire, and effectively protect the internal structure. Fireproof coatings have been widely used in public buildings, vehicles, aircraft, ships, ancient buildings and cultural relics protection. Fire retardant coatings are usually divided into intumescent fire retardant coatings and non-intumescent fire retardant coatings according to the state of the coating after heating. The intumescent fire retardant coating expands and foams after being heated to form a carbon foam insulation layer, which seals the protected object, delays the transfer of heat to the substrate, and prevents the ob...

AI Technical Summary

Problems solved by technology

[0003] Due to its own components and matrix properties, the currently used fire retardant coatings have problems such as easy cracking at high temperature, small expansion, and fast heat transfer rate to the substrate, and lose effective protection for the internal structure, which seriously affects fire protection. Fire performance of coatings