Intumescent flame-retardant heat-insulating fireproof coating and preparation method thereof

Abstract

The invention relates to an intumescent flame-retardant heat-insulating fireproof coating and a preparation method thereof, the intumescent flame-retardant heat-insulating fireproof coating is formed by mixing a component A, a component B and an auxiliary agent, the component A comprises an adhesive, a catalyst, a coupling agent, a foaming agent, an inorganic flame retardant, an organic flame retardant, a high-temperature adhesive, a combustion improver, a water removal agent, a smoke absorbent, an anti-aging agent and an ultraviolet absorbent; the component B comprises a curing agent, a plasticizer and a chain extender; and the auxiliary agent is a diluent. The intumescent flame-retardant heat-insulating fireproof coating has the advantages that the intumescent flame-retardant heat-insulating fireproof coating is suitable for protection of various indoor and outdoor materials, particularly suitable for occasions with high fireproof performance requirements, such as electric power, information and petrochemical industries, can delay object ignition or reduce the combustion speed of a protected base material, can quickly release heat after the surface temperature of the intumescent flame-retardant heat-insulating fireproof coating exceeds 290 DEG C, a carbon flocculent isolation layer is formed through expansion, and conduction of the heat effect is isolated.

Description

technical field [0001] The invention belongs to the technical field of flame-retardant thermal insulation materials, and in particular relates to an intumescent flame-retardant thermal insulation fireproof coating with dibutylene rubber as a binder and a preparation method thereof. Background technique [0002] Fireproof coatings are widely used in many aspects such as construction, transportation, electrical appliances, military industry, chemical industry, textiles, ancient buildings and cultural relics protection. When a fire occurs, it can reduce the flammability of the surface of the coated material and retard the rapid spread of the fire. [0003] At present, fire retardant coatings in the market are divided into intumescent fire retardant coatings and non-intumescent fire retardant coatings. [0004] 1. Non-intumescent fireproof coatings are mainly composed of artificially synthesized non-combustible or non-combustible organic polymer resins (such as acrylic resins) ...

AI Technical Summary

Problems solved by technology

Under normal circumstances, when a fire occurs, the intumescent fire retardant coating first prevents the spread of the fire, and then the coating expands to form a uniform and dense honeycomb or spongy carbon foam layer, which isolates the flame from the object and further prevents or Delay the fire and reduce the surface temperature of the material to achieve the purpose of fire prevention. However, due to the influence of the expansion rate and magnification of the coating, the heat conduction effect will be quickly reflected on the protected material, and the protection time is limited and cannot be obtained in a short time. In the case of rescue, the protected material can also burn or lose its structural function due to high temperature, causing secondary damage and making rescue difficult

[0006] At the same time, the fire retardant coatings on the market still have shortcomings such as short service life, insufficient weather resistance, and easy to fall off.

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