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Thick-thin composite fireproof coating and preparation method thereof

A kind of fireproof coating and composite technology, which is applied in the direction of fireproof coating, coating, cement coating, etc., can solve the problems of few researches on the compounding of fireproof coating, achieve low cost of raw materials and environmental protection, improve fireproof effect, and excellent fireproof and heat insulation performance Effect

Inactive Publication Date: 2019-08-30
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At this stage, the research is limited to the research on the fire retardant coating itself composed of inorganic and organic components, and there are few researches on the combination of intumescent and non-intumescent fire retardant coatings.

Method used

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  • Thick-thin composite fireproof coating and preparation method thereof

Examples

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Effect test

Embodiment 1

[0033] A kind of thick-thin composite type fireproof coating of this embodiment, its structure schematic diagram is as follows figure 1 shown. Consists of a thick non-intumescent fire protection coating and a thin intumescent fire protection coating on a sheet metal substrate. The base material is Q235 steel plate; the component content of thick non-intumescent fireproof coating (calculated based on 42.5 type Portland cement): 100 parts of 42.5 type Portland cement, 22 parts of high alumina cement, 36 parts of refractory soil, 80 parts of expanded vermiculite, 47 parts of perlite, 27 parts of sepiolite, 30 parts of ceramic fiber, 6 parts of polyethylene glycol-2000, 6 parts of high-efficiency water repellent, 1 part of sodium carboxymethyl cellulose, redispersible 2 parts of latex powder; the component content of thin intumescent fireproof paint (by weight): 10 parts of water, 25 parts of acrylic acid emulsion, 28 parts of ammonium polyphosphate, 15 parts of melamine, 8 parts...

Embodiment 2

[0049] A kind of thick-thin composite type fireproof coating of this embodiment, its structure schematic diagram is as follows figure 1 shown. Consists of a thick non-intumescent fire protection coating and a thin intumescent fire protection coating on a sheet metal substrate. The base material is Q235 steel plate; the component content of thick non-intumescent fireproof coating (calculated based on 42.5 type Portland cement): 100 parts of 42.5 type Portland cement, 22 parts of high alumina cement, 27 parts of refractory soil, 66 parts of expanded vermiculite, 20 parts of perlite, 27 parts of sepiolite, 30 parts of ceramic fiber, 6 parts of polyethylene glycol-2000, 6 parts of high-efficiency water repellent, 1 part of carboxymethyl cellulose, redispersible latex 2 parts of powder; the component content of thin intumescent fireproof coating (by weight): 10 parts of water, 25 parts of acrylic acid emulsion, 28 parts of ammonium polyphosphate, 15 parts of melamine, 8 parts of p...

Embodiment 3

[0065] A kind of thick-thin composite type fireproof coating of this embodiment, its structure schematic diagram is as follows figure 1 shown. Consists of a thick non-intumescent fire protection coating and a thin intumescent fire protection coating on a sheet metal substrate. The base material is Q235 steel plate; the component content of thick non-intumescent fireproof coating (calculated based on 42.5 type Portland cement): 100 parts of 42.5 type Portland cement, 22 parts of high alumina cement, 27 parts of refractory soil, 66 parts of expanded vermiculite, 20 parts of perlite, 27 parts of sepiolite, 30 parts of ceramic fiber, 6 parts of polyethylene glycol-2000, 6 parts of high-efficiency water repellent, 1 part of sodium carboxymethyl cellulose, dispersible latex 2 parts of powder; the component content of thin intumescent fireproof coating (by weight): 20 parts of water, 25 parts of acrylic acid emulsion, 21 parts of ammonium polyphosphate, 10 parts of melamine, 6 parts...

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Abstract

The invention belongs to the technical field of fireproof heat insulation coatings and discloses a thick-thin composite fireproof coating and a preparation method thereof. The thick-thin composite fireproof coating is composed of a thick non-expansive fireproof coating on a metal plate substrate and a thin expansive fireproof coating. The preparation method comprises the following steps: applyingthe thick non-expansive fireproof coating to a polished metal plate substrate in a brush coating or roller coating manner, and performing curing to prepare the thick non-expansive fireproof coating; and applying the thin expansive fireproof coating on the thick non-expansive fireproof coating in a brush coating or roller coating or spraying manner, and performing curing, so as to obtain the thick-thin composite fireproof coating. The two fireproof coatings can achieve an excellent composite effect, the binding force between composite layers is high, the raw materials are cheap and environment-friendly, and construction is simple. The fireproof effect of the fireproof coating can be greatly improved, and the cost can be reduced to make certain economic benefits.

Description

technical field [0001] The invention belongs to the technical field of fireproof and heat-insulating coatings, and in particular relates to a thick-thin composite fireproof coating and a preparation method thereof. Background technique [0002] Fire retardant coatings, also known as flame retardant coatings, are coated on the surface of the substrate to be protected to reduce or prevent the substrate from being damaged by the fire temperature. According to the principle of flame retardancy, it can be divided into non-intumescent fire retardant coatings and intumescent coatings. [0003] Non-intumescent fireproof coatings are generally made of Portland Portland cement and phosphate cement binders, and then add vermiculite, fiber, kaolin, perlite and other inorganic minerals to act as heat insulation and skeleton in the coating. The coating thickness is generally 8-50mm, and the fire resistance limit is relatively high, exceeding 3 hours. Therefore, most non-intumescent firep...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D1/08C09D5/18C09D7/65C09D133/04B05D7/14B05D7/24B05D7/00
CPCB05D7/14B05D7/24B05D7/54C08K2003/323C09D1/08C09D5/18C09D7/65C09D133/04C08L1/286C08K13/02C08K3/32C08K5/34922C08K5/053
Inventor 程小苏王慧陈静李明熊灿光
Owner SOUTH CHINA UNIV OF TECH
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