Fireproof coating with high-temperature resistance and preparation method of fireproof coating

Abstract

The invention discloses a fireproof coating with high-temperature resistance and a preparation method of the fireproof coating. The fireproof coating with high-temperature resistance is prepared fromcomponents in parts by mass as follows: 50-75 parts of an aqueous film forming matrix, 8-15 parts of multiwalled carbon nanotubes, 0.3-1 part of graphene oxide, 0.9-1.5 parts of modified nano hollow silicon dioxide pellets, 30-40 parts of a composite expansion type flame retardant, 14-20 parts of melamine, 12-18 parts of pentaerythritol, 0-9 parts of potassium silicate, 6-12 parts of bentonite, 0.5-2.5 parts of an auxiliary and 40-60 parts of water. With the adoption of compounding of the multiwalled carbon nanotubes, graphene oxide and the modified nano hollow silicon dioxide pellets, the flame retardant effect of the fireproof coating can be improved synergistically, and production of volatile degradation products is inhibited. The fireproof coating with high-temperature resistance has excellent high-temperature resistance, a coating layer avoids blistering, cracking and peeling under the high temperature condition, and the service life of a component can be prolonged effectively.

Description

technical field [0001] The invention relates to the technical field of fireproof coatings, in particular to a high-temperature-resistant fireproof coating and a preparation method thereof. Background technique [0002] Fireproof coating is a kind of coating used on the surface of flammable substrates, which can reduce the flammability of the surface of the coated material, retard the spread of fire, and improve the fire resistance limit of the coated material. The fire retardant coating is coated on the surface of the substrate. In addition to its flame retardant effect, it is also required to have excellent anti-rust, waterproof, anti-corrosion, wear-resistant, heat-resistant and other properties. At present, most of the fire retardant coatings have problems such as easy cracking at high temperature, small expansion, and fast heat transfer rate to the substrate due to the coating components and matrix properties, etc., thus losing effective protection for the internal struc...

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Problems solved by technology

At present, most of the fire retardant coatings have problems such as easy cracking at high temperature, small expansion, and fast heat transfer rate to the substrate due to the coating components and matrix properties, etc., thus losing effective protection for the internal structure and reducing the performance of fire retardant coatings. The fire performance has limited its development

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