Intumescence fire-retardant coating

Abstract

The invention relates to an intumescence fire-retardant coating which comprises carbon nanotubes, wherein the carbon nanotubes are multi-wall carbon nanotubes or / and single-wall carbon nanotubes. The coating comprises the following components in parts by weight: 10-40 parts of a resin, 0-40 parts of a catalyst, 5-20 parts of a carbonizing agent, 5-20 parts of a foaming agent, 3-15 parts of a flame retardant and 3-15 parts of carbon nanotubes. The intumescence fire-retardant coating provided by the invention has the characteristics of being high in fireproof and thermal-insulating property, good in bonding force, high in strength, high in high / low temperature circulation resistance, high in water resistance, acid resistance and salt corrosion resistance, not liable to drop off, stable to store, high in decoration property, convenient to construct and the like, is capable of overcoming the defects that a conventional fireproof coating is low in intumescence multiplying power and poor in carbonized layer density, and is very high in fireproof property.

Description

technical field [0001] The invention relates to a fireproof paint, in particular to an intumescent fireproof paint, which can be used as a fireproof paint for steel structures, a decorative surface fireproof paint, and a fireproof paint for cables. Background technique [0002] In terms of fire prevention mechanism, fire retardant coatings are generally divided into two types: intumescent and non-intumescent. Non-intumescent fire retardant coatings rely on their own high flame retardancy or non-combustibility to achieve the purpose of flame retardant and fire prevention. To achieve a good fire prevention effect, it must be coated very thickly, and a large amount of halogen, nitrogen, phosphorus and other flame retardants are added to produce Large quantities of toxic gas. Intumescent fireproof coating means that the coating film expands when heated to form a honeycomb carbonized layer, which isolates the heat of the flame and reduces or slows down the transfer to the substr...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide an intumescent fireproof coating with excellent comprehensive performance, which solves the shortcomings of low expansion ratio and low compactness of carbonized layer of current fireproof coatings, and has very excellent fireproof performance

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