Waterborne flame-retardant coating and use method thereof

Abstract

The invention belongs to the technical field of coating, in particular to waterborne flame-retardant coating. The coating comprises a component A and a component B. With the total mass of the component A being 100%, the component A comprises 40%-60% of polycarbonate dispersion, 5%-10% of modified acrylic emulsion, 1%-2% of a wetting dispersant, 1%-2% of a defoamer, 0.5%-1% of a thickener, 5%-15% of an inorganic filler, 10%-20% of a dispersant, 0.5%-1% of bentonite, 2%-5% of a coalescing agent, and 0.5%-1% of a leveling agent, with the balance being water. The component B comprises hexamethylene diisocyanate. Through the combined action of the component A and the component B, a coating film formed by the waterborne flame-retardant coating has excellent flame-retardant and heat-insulating properties, has good adhesion on a base material, and can well delay material combustion; and meanwhile, when the flame-retardant coating is coated in a conventional wood product, furniture can obtain good flame retardance, and the product universality is relatively wide.

Description

Technical field [0001] The invention belongs to the technical field of coatings, and particularly relates to a water-based flame-retardant coating and a use method thereof. Background technique [0002] PVC wood-plastic composite material is a green and environmentally friendly composite material that has emerged in recent years at home and abroad. It uses wood processing residues, waste wood and other wood fiber materials and waste PVC as the main raw materials. It is made by extrusion, pressing, injection molding and other molding methods. Into. The main application areas of PVC wood-plastic composite materials are: building materials, outdoor facilities, logistics facilities, transportation facilities, furniture supplies, etc. At present, the annual consumption of various types of wood-plastic panels has exceeded 2 million tons. Because wood fiber materials and PVC are both flammable materials, although flame retardants and inorganic fillers can be added during processing to ...

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Problems solved by technology

[0004] The purpose of the present invention is to provide a water-based flame-retardant coating, which aims to solve the technical problems of the existing water-based coatings, such as the poor effect of improving the flame-retardant performance of PVC wood-plastic composite materials, and poor applicability.

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