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High-toughness flame-retardant hard polyurethane foam material and preparation method thereof

A technology of rigid polyurethane and foam materials, applied in the field of polyurethane materials, can solve the problems of large specific surface area, fire accidents, inability to self-extinguish, etc., and achieve the effects of high strength, reduced risk, and good dimensional stability

Inactive Publication Date: 2020-02-28
湖北恒源宇交通科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] But the rigid polyurethane foam material of prior art contains combustible hydrocarbon segment, specific surface area is big, density is small, is easy to burn, and because the foamed polyurethane material has high porosity and good air circulation, oxygen is easy to flow Continuously entering into the material, making it easier to burn and unable to self-extinguish, it is easy to cause serious fire accidents

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] A high-toughness flame-retardant rigid polyurethane foam material, composed of A component and B component;

[0019] Component A includes the following components in parts by mass: 100 parts of polymethylene polyphenyl polyisocyanate, and the mass fraction of NCO is 30%;

[0020] Component B includes the following components by mass: 120 parts of high-functionality polyether polyol, 10 parts of hard foam silicone oil, 6 parts of glycerin, 6 parts of foam stabilizer, 2 parts of crosslinking agent, 5 parts of amine catalyst, 15 parts of trichloroisopropyl phosphate and 19 parts of glass fiber, the diameter of the glass fiber is 0.3mm.

[0021] The preparation method of the above-mentioned high-toughness flame-retardant rigid polyurethane foam material: add component A to component B, stir at high speed to make it foam freely, the temperature of free foam is 50° C., and the time is 40 minutes.

Embodiment 2

[0023] A high-toughness flame-retardant rigid polyurethane foam material, composed of A component and B component;

[0024] Component A includes the following components in parts by mass: 100 parts of polymethylene polyphenyl polyisocyanate, and the mass fraction of NCO is 31%;

[0025] Component B includes the following components by mass: 150 parts of high-functionality polyether polyol, 8 parts of hard foam silicone oil, 10 parts of 1,4-cyclohexanol, 2 parts of foam stabilizer, 6 parts of crosslinking agent, organic metal 8 parts of catalyst, 8 parts of dimethyl methyl phosphate and 30 parts of glass fiber, the diameter of the glass fiber is 0.4mm.

[0026] The preparation method of the above-mentioned high-toughness flame-retardant rigid polyurethane foam material: add component A to component B, stir at high speed to make it foam freely, the temperature of free foam is 30° C., and the time is 40 minutes.

Embodiment 3

[0028] A high-toughness flame-retardant rigid polyurethane foam material, composed of A component and B component;

[0029] Component A includes the following components in parts by mass: 100 parts of polymethylene polyphenyl polyisocyanate, and the mass fraction of NCO is 32%;

[0030] Component B includes the following components by mass: 135 parts of high-functionality polyether polyol, 5 parts of hard foam silicone oil, 1 part of ethylene glycol, 4 parts of foam stabilizer, 10 parts of crosslinking agent, 0.5 part of organometallic catalyst, 10 parts of trichloroisopropyl phosphate and 8 parts of glass fiber, the diameter of the glass fiber is 0.2mm.

[0031] The preparation method of the above-mentioned high-toughness flame-retardant rigid polyurethane foam material: add component A to component B, stir at high speed to make it foam freely, the temperature of free foam is 10° C., and the time is 35 minutes.

[0032] The high-toughness flame-retardant rigid polyurethane f...

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Abstract

The invention discloses a high-toughness flame-retardant hard polyurethane foam material and a preparation method thereof, and belongs to the technical field of polyurethane materials, wherein the high-toughness flame-retardant hard polyurethane foam material comprises a component A and a component B, the component A comprises, by mass, 100 parts of polymethylene polyphenyl polyisocyanate, the component B comprises, by mass, 120-150 parts of high-functionality polyether polyol, 5-10 parts of hard foam silicone oil, 1-10 parts of a chain extender, 2-6 parts of a foam stabilizer, 2-10 parts of across-linking agent, 0.5-8 parts of a catalyst, 8-15 parts of a flame retardant and 8-30 parts of glass fibers, and the diameter of the glass fiber is 0.2-0.4 mm. According to the invention, the high-toughness flame-retardant hard polyurethane foam material has advantages of simple preparation process, high strength, light weight, low heat conductivity, good dimensional stability and self-extinguishing after leaving fire, greatly reduces the risk of fire disasters, and creates good conditions for personnel escape, extinguishment and rescue at the same time.

Description

technical field [0001] The invention belongs to the technical field of polyurethane materials, in particular to a high-toughness flame-retardant rigid polyurethane foam material and a preparation method thereof. Background technique [0002] Rigid polyurethane foam material, referred to as polyurethane rigid foam, mostly has a closed-cell structure, which has excellent characteristics such as good heat insulation effect, light weight, high specific strength, and convenient construction. It also has sound insulation, shockproof, electrical insulation, heat resistance, cold resistance, and Solvent and other characteristics, widely used in refrigerators, freezers box insulation layer, cold storage, refrigerated trucks and other insulation materials, buildings, storage tanks and pipeline insulation materials and other fields. [0003] But the rigid polyurethane foam material of prior art contains combustible hydrocarbon segment, specific surface area is big, density is small, is...

Claims

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Application Information

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IPC IPC(8): C08G18/76C08G18/66C08G18/48C08G18/32C08K7/14C08K5/521C08G101/00
CPCC08G18/3206C08G18/48C08G18/6674C08G18/6677C08G18/7664C08K5/521C08K7/14C08G2110/0025
Inventor 邓万学褚明
Owner 湖北恒源宇交通科技有限公司