Degradation resistance fire retardation type rigid polyurethane foam material and preparation method thereof

A technology of rigid polyurethane and foam materials, applied in the field of material chemistry, can solve the problems of difficulty in foaming, increase in viscosity of foaming system, etc., and achieve the effects of good dimensional stability, overcoming aging resistance, and good thermal conductivity.

Active Publication Date: 2013-03-20
BEIJING ORIENTAL YUHONG WATERPROOF TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But it will cause the viscosity of the foaming system to increase rapidly, resulting in difficulty in foaming

Method used

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  • Degradation resistance fire retardation type rigid polyurethane foam material and preparation method thereof
  • Degradation resistance fire retardation type rigid polyurethane foam material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030]Component A: Accurately weigh 100 parts of polyphenyl polymethylene polyisocyanate PAPI, brand PM-200, the mass fraction of NCO is 30.1-32.0%, the viscosity (25°C) is 150-250mPa·s, and the average functionality is 2.6~2.7 (Yantai Wanhua Polyurethane Co., Ltd.).

[0031] Preparation of component B: at a temperature of 25°C, accurately weigh 0.5 parts of blowing agent H 2 O, 5.0 parts of crosslinking agent TMP, 1.0 parts of chain extender BDO, 3.0 parts of foam stabilizer B8450, 5.0 parts of A-33, 0.5 part of T-12, composite stabilizer (2.0 parts of a-methylstyrene, 1.0 part UV-234 and 1.5 parts of B11) were added to 70 parts of polyether polyol YD-4114 and 30 parts of polyester polyol PS-3152 accurately weighed in advance, and stirred by a stirrer for 180s at a speed of 200r / min. Among them, polyether polyol YD-4114 has a molecular weight of 545, a hydroxyl value of 470±15mgKOH / g, and a viscosity (25°C) of 1500mPa·s (Hebei Yadong Company); polyester polyol PS-3152 has a ...

Embodiment 2

[0038] Component A: Accurately weigh 100 parts of polyphenyl polymethylene polyisocyanate PAPI, brand PM-200, the mass fraction of NCO is 30.1-32.0%, the viscosity (25°C) is 150-250mPa·s, and the average functionality is 2.6~2.7 (Yantai Wanhua Polyurethane Co., Ltd.).

[0039] Preparation of component B: at a temperature of 25°C, accurately weigh 0.5 parts of blowing agent H 2 O, 3.0 parts of crosslinking agent TMP, 2.0 parts of chain extender BDO, 3.0 parts of foam stabilizer B8450, 5.0 parts of A-33, 0.5 part of T-12, composite stabilizer (2.0 parts of a-methylstyrene, 1.0 part UV-234 and 1.5 parts of B11) were added to 70 parts of polyether polyol YD-4114 and 30 parts of polyester polyol PS-3152 accurately weighed in advance, and stirred by a stirrer for 180s at a speed of 200r / min. Among them, polyether polyol YD-4114 has a molecular weight of 545, a hydroxyl value of 470±15mgKOH / g, and a viscosity (25°C) of 1500mPa·s (Hebei Yadong Company); polyester polyol PS-3152 has a...

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Abstract

The present invention discloses a degradation resistance fire retardation type rigid polyurethane foam material, which comprises a component A, a component B and a component C, wherein the component A is polyisocyanate with functionality of 2.0-3.5, the component B comprises polyether polyol or polyester polyol, a foaming agent, a cross-linking agent, a chain extender, a foam stabilizer, a catalyst, a composite stabilizer, an additive and the like, and the component C is a composite fire retardation agent. The degradation resistance fire retardation type rigid polyurethane foam material has characteristics of high strength, low combustion value, excellent fire retardation, wear resistance, hydrolysis resistance, corrosion resistance, shock resistance, good size stability, good biodegradability and the like, and can be used in vehicle materials, thermal insulation materials, structural materials, sound insulation materials, building materials, aerospace materials, packaging materials, road repair and the like.

Description

technical field [0001] The invention relates to a novel degradation-resistant and flame-retardant rigid polyurethane foam material and a preparation method thereof. The material has the characteristics of high strength, low density, good degradation resistance and excellent flame-retardant performance, and belongs to the field of material chemistry. Background technique [0002] Most of the polyols used in rigid polyurethane foams are polyether (or polyester) polyols with many functional groups, high hydroxyl value, and low molecular weight. After reacting with polyisocyanate, there are many network structures ( That is, there are many and dense cross-linking points), and the obtained foam plastic has high hardness, high compressive strength, good dimensional stability and heat resistance. In rigid polyurethane foam, because the product requires higher rigidity and better dimensional stability, it is generally beneficial to use aromatic isocyanate with higher aromatic ring d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L75/06C08L75/08C08K5/521C08K5/06C08G18/66C08G18/48C08G18/42C08G101/00
Inventor 韩海军王新锋
Owner BEIJING ORIENTAL YUHONG WATERPROOF TECH CO LTD
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