High flame-retardant rigid polyurethane foam and its preparation method

A technology of rigid polyurethane and foamed plastics, which is applied in the field of fireproof building materials and its preparation, can solve problems such as hidden dangers of fire prevention, and achieve the effect of protecting fire shock, obvious fire resistance and heat insulation effect, and preventing flame spread and skewering.

Active Publication Date: 2011-12-14
山东华德隆建材科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The use of rigid polyurethane foam with flame retardant properties of B2, B3 or non-flame retardant in building insulation has certain fire hazards

Method used

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  • High flame-retardant rigid polyurethane foam and its preparation method
  • High flame-retardant rigid polyurethane foam and its preparation method
  • High flame-retardant rigid polyurethane foam and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Take 0.1kg as a serving:

[0020] 1. 0.5 kg of expanded graphite with a particle size of 150 mesh, 0.1 kg of aluminum hydroxide with a particle size of 100 mesh, 0.2 kg of ammonium polyphosphate with a weight-average degree of polymerization of 500, 0.05 kg of zinc borate, and 4 kg of polyurethane white material Elastopor CH1141C-A Mix, stir to obtain polyurethane modified white material I,

[0021] 2. Before mixing the polyurethane modified white material I with the black material in polyurethane M20S, control the temperature of the two materials at 30°C, and quickly pour the polyurethane modified white material I into 4.85 In the kg polyurethane black material, under the condition that the rotating speed is 1000r / min, stir for 20s to obtain the combined material,

[0022] 3. Use circulating water bath equipment to control the mold temperature to 30°C, pour the obtained composite material into the mold, quickly cover the mold and lock it, control the mold and ambient ...

Embodiment 2

[0028] Take 0.05kg as a serving:

[0029] 1. 0.75 kg of expanded graphite with a particle size of 300 mesh, 0.3 kg of aluminum hydroxide with a particle size of 500 mesh, 0.5 kg of ammonium polyphosphate with a weight-average degree of polymerization of 800, 0.05 kg of zinc borate, and 2.25 kg of polyurethane white material Elastopor CH1141C-A kg mixed, stirred uniformly to obtain polyurethane modified white material I,

[0030] 2. Before mixing the polyurethane modified white material I with the black material in polyurethane M20S, control the temperature of the two materials at 15°C, and quickly pour the polyurethane modified white material I into the polyurethane at an ambient temperature of 15°C In the black material 6.9kg, under the condition that the rotating speed is 2500r / min, stir for 10s to obtain the combined material,

[0031] 3. Use circulating water bath equipment to control the mold temperature to 15°C, pour the obtained composite material into the mold, cover ...

Embodiment 3

[0037] Based on 1.5g as 1 serving:

[0038] 1. Mix 15g of expanded graphite with a particle diameter of 200 mesh, 5g of aluminum hydroxide with a particle diameter of 300 mesh, 10.5g of ammonium polyphosphate with a weight-average degree of polymerization of 1200, 1.5g of zinc borate, and 64g of polyurethane white material Elastopor CH1141C-A, Stir evenly to obtain polyurethane modified white material I,

[0039] 2. Before mixing the polyurethane modified white material I with the black material in polyurethane M20S, control the temperature of the two materials at 40°C, and pour the polyurethane modified white material I into the polyurethane quickly under the condition of an ambient temperature of 40°C In the black material 144g, under the condition that the rotating speed is 2000r / min, stir for 15s to obtain the combined material,

[0040] 3. Use circulating water bath equipment to control the mold temperature to 40°C, pour the obtained composite material into the mold, qui...

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Abstract

The invention provides high-fire-resistance rigid polyurethane foam plastic and a preparation method thereof and relates to a fireproof building material and a preparation method thereof. The high-fire-resistance rigid polyurethane foam plastic has the fire resistance of B1 grade, stable foaming and curing reaction time, and brand new flame-retardant and fire-resistant characteristics. The high-fire-resistance rigid polyurethane foam plastic consists of a polyurethane modified white material and a polyurethane black material, wherein the mass ratio of the polyurethane modified white material to the polyurethane black material is 1:(1-1.8); the polyurethane modified white material consists of the following components in part by mass: 5 to 15 parts of expanded graphite with the grain size of 150 to 300 meshes, 1 to 6 parts of aluminium hydroxide with the grain size of 100 to 500 meshes, 2 to 10 parts of ammonium polyphosphate, 0.5 to 1 part of zinc borate and 40 to 45 parts of polyurethane white material; the polyurethane white material refers to Elastopor CH1141C-A in BASF Company; the polyurethane black material refers to the black material of M20S in the BASF Company; the molecular formula of the ammonium polyphosphate is (NH4PO3)n; and the weight mean polymerization degree n is 500 to 1,200.

Description

technical field [0001] The invention relates to a fireproof building material and a preparation method thereof. Background technique [0002] The flame retardant properties of existing rigid polyurethane foams are mostly B2 and B3 grades, and there are many non-flame retardant products on the market, and B1 grade rigid polyurethane foams are almost blank in the market. The use of rigid polyurethane foam with flame retardant performance of B2, B3 or non-flame retardant in building insulation has certain fire hazards. Contents of the invention [0003] The invention provides a highly flame-retardant rigid polyurethane foam plastic with a flame-retardant performance of B1 grade, stable foaming and curing reaction time, and brand-new flame-retardant and fire-resistant characteristics, and a preparation method thereof. [0004] A high flame-retardant rigid polyurethane foam, which is composed of polyurethane modified white material and polyurethane black material with a mass r...

Claims

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Application Information

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IPC IPC(8): C08L75/04C08K13/04C08K7/24C08K3/04C08K3/22C08K3/32C08K3/38B29C44/60
Inventor 魏振波王希安
Owner 山东华德隆建材科技有限公司
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