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High temperature resistant ceramic polyurethane foam composite and preparation method thereof

A technology of polyurethane foam and composite materials, which is applied in the fields of heat preservation, fire prevention, polymer-based foam composite materials, and heat insulation. It can solve problems such as lack of strength, and achieve the effects of slowing down volume shrinkage and improving heat resistance

Active Publication Date: 2017-01-25
WUHAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Unlike ordinary fireproof materials, they turn into loose ashes after burning, and basically have no strength.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Preparation formula of high temperature resistant ceramizable polyurethane foam composite material:

[0037] Component A: polyether 4110 35g, HCFC-141b 11.6g, simethicone 1g, triethanolamine 0.28g, dibutyltin dilaurate 0.04g, expandable graphite 3.5g, ammonium polyphosphate 1.75g, zinc borate 1.75g . Expandable graphite, ammonium polyphosphate and zinc borate in component A are flame retardants for polyurethane foam under low temperature conditions.

[0038] Component B: 35g of crude MDI, 24g of feldspar powder, 4.8g of kaolin, 6.4g of talc powder, 23g of glass powder, 3.5g of aluminum hydroxide, and 1.75g ​​of vermiculite powder. The feldspar powder, kaolin, and talc powder in component B are the porcelain-forming raw materials of the polyurethane foam material under high temperature conditions, the glass powder is the low-melting point additive, aluminum hydroxide is the high-temperature porogen, and the vermiculite is the high-temperature expansion agent.

[0039] ...

Embodiment 2

[0041] Preparation formula of high temperature resistant ceramizable polyurethane foam composite material:

[0042] Component A: polyether 4110 35g, HCFC-142b 14g, simethicone 1.05g, triethanolamine 0.42g, dibutyltin dilaurate 0.04g, expandable graphite 7g, ammonium polyphosphate 3.5g, zinc borate 3.5g. Expandable graphite, ammonium polyphosphate and zinc borate in component A are flame retardants for polyurethane foam under low temperature conditions.

[0043] Component B: 37.98g of crude MDI, 28.7g of feldspar powder, 5.7g of kaolin, 7.6g of talc powder, 29.75g of glass powder, 5.25g of aluminum hydroxide, and 3.5g of vermiculite powder. The feldspar powder, kaolin, and talc powder in component B are the porcelain-forming raw materials of the polyurethane foam material under high temperature conditions, the glass powder is the low-melting point additive, aluminum hydroxide is the high-temperature porogen, and the vermiculite is the high-temperature expansion agent.

[0044]...

Embodiment 3

[0046] Preparation formula of high temperature resistant ceramizable polyurethane foam composite material:

[0047] Component A: Polyether 4110 35g, HCFC-123 12.8g, Dimethicone 1.02g, N-N-Dimethylcyclohexylamine 0.35g, Dibutyltin Dilaurate 0.04g, Expandable Graphite 5.25g, Ammonium Polyphosphate 2.63g, zinc borate 2.63g. Expandable graphite, ammonium polyphosphate and zinc borate in component A are flame retardants for polyurethane foam under low temperature conditions.

[0048] Component B: 46.8g of crude MDI, 26.35g of feldspar powder, 5.25g of kaolin, 7g of talc powder, 26.4g of glass powder, 4.4g of aluminum hydroxide, and 2.6g of vermiculite powder. The feldspar powder, kaolin, and talc powder in component B are the porcelain-forming raw materials of the polyurethane foam material under high temperature conditions, the glass powder is the low-melting point additive, aluminum hydroxide is the high-temperature porogen, and the vermiculite is the high-temperature expansion ...

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PUM

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Abstract

The invention discloses a high temperature resistant ceramic polyurethane foam composite and a preparation method thereof. The composite comprises two components A and B, wherein the component A comprises 100 parts of polyether polyol, 33-40 parts of a foaming agent, 3-5 parts of a stabilizer, 0.8-1.2 parts of a catalyst and 20-40 parts of a fire retardant in parts by weight; the component B comprises 110-170 parts of polyisocyanates, and 180-230 parts of a compound inorganic component in parts by weight; and the compound inorganic component comprises a silicate mineral material, a low-melting-point fluxing agent, a high temperature pore forming agent and a high temperature expanding agent. The preparation steps of the composite comprises preparing the components A and B, mixing the components A and B, injecting the mixture into a mold to implement foam forming, taking out foam from a mold cavity, and placing the foam at the room temperature for 3.5-4.5 hours. The high temperature resistant ceramic polyurethane foam composite has the excellent properties of high temperature resistance and fireproofness, and is applied to the fields of heat insulation, thermal insulation, fire prevention and the like.

Description

technical field [0001] The invention relates to the technical field of polymer-based foam composite materials, in particular to a high-temperature-resistant ceramizable polyurethane foam composite material and a preparation method thereof, which can be applied to the fields of heat preservation, heat insulation, and fire prevention. Background technique [0002] Polyurethane rigid foam is made of rigid polyether polyol (polyurethane rigid foam combined polyether is also called white material) and polymerized MDI (also known as black material) as the main raw materials. Under the action, the high molecular polymer obtained by foaming reaction. [0003] As a high-performance thermal insulation material, polyurethane rigid foam composite material has the characteristics of porosity, low relative density, high specific strength, good thermal insulation performance, strong waterproof performance, etc., and has the characteristics of convenient construction and anti-aging. Has fo...

Claims

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Application Information

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IPC IPC(8): C08G18/76C08G18/48C08K13/04C08K7/24C08K3/32C08K3/38C08K3/34C08K3/40C08K3/22C08J9/14C08G101/00
CPCC08G18/48C08G18/7671C08G2101/00C08J9/144C08J2203/142C08J2375/08C08K3/22C08K3/32C08K3/34C08K3/346C08K3/38C08K3/40C08K7/24C08K13/04C08K2003/2227C08K2003/323C08K2003/387C08K2201/014
Inventor 石敏先沈益锋黄志雄
Owner WUHAN UNIV OF TECH
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