Constructional fireproof heat-insulation coating and preparation method thereof

Abstract

The invention discloses a constructional fireproof heat-insulation coating and a preparation method thereof. The constructional fireproof heat-insulation coating comprises the following raw materialsin parts by weight: 20-40 parts of a silicone acrylic emulsion, 25-50 parts of ammonium polyphosphate, 5-12 parts of melamine, 8-25 parts of vinyl acetate-ethylene dispersible emulsion powder, 6-20 parts of expanded perlite, 2-6 parts of polypropylene fiber, 5-15 parts of modified aluminium hydroxide, 12-24 parts of a fire retardant, 5-10 parts of titanium dioxide, 4-12 parts of sodium hexametaphosphate, 3-14 parts of magnesium oxide, 5-10 parts of polymer hollow microsphere, 15-35 parts of light calcium carbonate, and 60-100 parts of deionized water. The constructional fireproof heat-insulation coating has excellent fire resistance and thermal insulation performance, can satisfy the fire resistance and thermal insulation requirement of the building material, at the same time, the preparation method is simple, realization is easy, and the method is adapted to large-scale industrial production.

Description

technical field [0001] The invention relates to the technical field of building materials, in particular to a fireproof and thermal insulation coating for buildings and a preparation method thereof. Background technique [0002] Building energy consumption in foreign developed countries accounts for 30%-40% of the total energy consumption in society. Building energy conservation is the most potential and most direct and effective way among various ways of energy conservation. Among the building energy consumption, the energy consumption caused by the external wall accounts for about 60% of the total building energy consumption, so wall insulation is the key to realize building energy saving. At present, there are two main types of materials used for building exterior wall insulation in my country: (1) Organic insulation materials: polystyrene foam materials, foam rubber materials, polyurethane foam materials, etc.; (2) Inorganic insulation materials: rock wool, slag wool , ...

AI Technical Summary

Problems solved by technology

Among them, although organic insulation materials have good thermal insulation properties and small bulk density, they have poor heat resistance and are easy to burn, and they release a lot of heat and produce a lot of toxic fumes during combustion, which will not only accelerate the spread of the epidemic, but also easily cause casualties. With the emphasis on fire protection and the vigorous promotion and implementation of fire protection codes in the construction field, its scope of use will become smaller and smaller

Moreover, although the existing organic and inorganic thermal insulation materials have good heat resistance and flame retardant effect, they have large capacity and poor thermal insulation effect.