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Expansion type fire-retardant coating and preparation method thereof

A fire-resistant coating, intumescent technology, applied in fire-resistant coatings, epoxy resin coatings, polyurea/polyurethane coatings, etc., can solve the problems of short fire-resistant time of fire-resistant coatings, poor adhesion to steel substrates, and poor fire-proof performance. Achieve good viscoelasticity, low thermal oxidation resistance and strong bond strength

Active Publication Date: 2019-10-11
PREGIS NEW MATERIALS (SHENZHEN) PTE LTD +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, although the fireproof coatings disclosed in the above-mentioned patent documents have improved the fireproof performance of steel structures, when a fire actually breaks out, the foam carbonized layer formed when such fireproof coatings burn has uneven foaming and is not compatible with the steel base. The shortcomings such as poor adhesion of the material lead to a short fire-resistant time and poor fire-proof performance of the fire-resistant coating.

Method used

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  • Expansion type fire-retardant coating and preparation method thereof
  • Expansion type fire-retardant coating and preparation method thereof
  • Expansion type fire-retardant coating and preparation method thereof

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preparation example Construction

[0069] Such as figure 1 As shown, in this embodiment, the preparation method of the intumescent fireproof coating may include: preparing polyorganosiloxane emulsion, base resin emulsion, carbonizing agent, flame retardant foaming, nitrogen-containing foaming agent, pre-foaming agent Foaming agent, expansion agent, antifoaming agent, wetting dispersant, film-forming aid and filler are used as raw material (step S10); The dispersant, defoamer, polyorganosiloxane emulsion and base resin emulsion are mixed to form a mixed solution (step S20); and the pre-foaming agent, film-forming aid and defoamer are added to the mixed solution for stirring, Form fireproof paint (step S30).

[0070] In the preparation method of the intumescent fire retardant coating according to the present embodiment, by adding and mixing the above-mentioned raw materials according to a prescribed mass percentage, a fire retardant coating with prolonged burning time and improved fire retardant performance can ...

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Abstract

The invention discloses an expansion type fire-retardant coating. The fire-retardant coating includes, by mass, 3-10% of polysiloxane emulsion, 10-17% of base resin emulsion, 11-18% of a carbonizing agent, 20-30% of a flame-retardant foaming agent, 10-20% of a nitrogen-containing foaming agent, 0.3-0.6% of a pre foaming agent, equal to or less than 5% of an expansion agent, 0.2-0.4% of a defoamingagent, 0.5-1.5% of a wetting dispersant, 0.1-0.5% of a coalescing agent and 10-25% of a filler. The fire-retardant coating that can prolong the fire resistance time and improve the fireproof performance can be provided.

Description

technical field [0001] The present disclosure particularly relates to an intumescent fireproof coating and a preparation method thereof. Background technique [0002] In the construction industry, by coating the surface of flammable materials in buildings with fire-resistant coatings, the fire resistance of flammable materials can be effectively improved and the spread of flames can be slowed down. This type of fire retardant coating is sometimes also called flame retardant coating. In particular, the mechanical strength and mechanical properties of commonly used building materials such as steel will decrease with the increase of temperature, and they will easily lose their supporting ability, resulting in the collapse of the building. Therefore, fire protection for such materials can effectively prevent such materials from rapidly heating up in a fire and reduce their strength, and avoid the loss of supporting capacity and cause the building to collapse. [0003] Proposed...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D133/04C09D163/00C09D175/04C09D183/04C09D5/18C09D7/61C09D7/63
CPCC09D133/04C09D183/04C09D5/185C09D7/61C09D7/63C09D7/70C08L2205/035C08L2201/02C08K2003/323C08K2003/2227C08K2201/011C08K2201/014C08L63/00C08L75/04C08L83/04C08K13/04C08K7/24C08K3/32C08K5/34928C08K3/22C08K5/053C08L33/04
Inventor 汤弢张金玲
Owner PREGIS NEW MATERIALS (SHENZHEN) PTE LTD
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