Glass bead polyurethane foam composite material and preparation method thereof

A technology of polyurethane foam and vitrified microbeads, which is applied in the field of composite materials and its preparation, can solve the problems of high cost of thermal insulation materials, difficulty in simultaneously improving flame retardancy and thermal insulation, and achieve low cost, improved thermal insulation performance, and low density Effect

Inactive Publication Date: 2013-02-20
NORTHEAST FORESTRY UNIVERSITY +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The present invention aims to solve the technical problems of high cost of existing thermal insulation materials, difficulty in synchronously imp

Method used

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  • Glass bead polyurethane foam composite material and preparation method thereof
  • Glass bead polyurethane foam composite material and preparation method thereof
  • Glass bead polyurethane foam composite material and preparation method thereof

Examples

Experimental program
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Effect test

Example Embodiment

[0029] Specific embodiment 1: The vitrified microsphere polyurethane foam composite material of this embodiment is pretreated from 200 to 270 parts by mass and the particle size is 32 to 120 meshes of pretreated vitrified microspheres, 100 parts of polyurethane white material, 120 to 150 parts of After mixing polyurethane black material with 35-45 parts of solid flame retardant, it is prepared by microwave-assisted heating, foaming compounding and curing;

[0030] The polyurethane white material is composed of 45-55 parts by weight of polyether 4110, 3-10 parts of polyether 403, 35-45 parts of polyether 210, 1-2 parts of catalyst, 2-5 parts of water and 5-15 parts of parts of dichlorofluoroethane;

[0031] Described catalyst is tin type catalyst and / or amine type catalyst, described tin type catalyst is stannous octoate, dibutyltin dilaurate, described amine type catalyst is triethylenediamine, 2,2'- Dimorpholino diethyl ether, N,N-dimethylcyclohexylamine or diethanolamine; ...

Example Embodiment

[0036] Embodiment 2: The difference between this embodiment and Embodiment 1 is that the vitrified microbead polyurethane foam composite material is pretreated by 250 parts by weight, the particle size is 32-100 mesh vitrified microbeads, 100 parts of polyurethane After mixing white material, 130 parts of polyurethane black material and 40 parts of solid flame retardant, it is prepared by microwave-assisted heating, foaming compounding and curing. Others are the same as the first embodiment.

Example Embodiment

[0037] Embodiment 3: The difference between this embodiment and Embodiment 1 is that the polyurethane white material is composed of 50 parts of polyether 4110, 5 parts of polyether 403, 40 parts of polyether 210, 1.5 parts of catalyst, 3 parts of consisting of parts water and 10 parts dichloromonofluoroethane. Others are the same as the first embodiment.

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Abstract

The invention discloses a glass bead polyurethane foam composite material and a preparation method thereof, relating to a composite material and a preparation method thereof. Through the invention, the technical problems that the existing thermal insulation material is high in cost and the flame retardance and heat retaining property are hard to improve synchronously are solved. The glass bead polyurethane foam composite material is prepared by mixing the pretreated glass bead, polyurethane white material, polyurethane black material and solid flame retardant and then performing microwave auxiliary heating, foaming compounding and curing. The method comprises the following steps of: (I) glass bead pretreatment; (II) weighing; (III) mixture preparation; (IV) microwave auxiliary heating and foaming compounding; and (V) curing. The glass bead polyurethane foam composite material disclosed by the invention has low density (90-120kg/m<2>), high strength (144-320KPa), high flame retardance (the limiting oxygen index can reach 34.7%), and lower cost (the raw material cost is reduced by about 37.5% in comparison with the flame-retardant hard polyurethane foam with the same density).

Description

technical field [0001] The invention relates to a composite material and a preparation method thereof. Background technique [0002] Due to the poor insulation effect of most buildings in our country, the energy consumption of buildings is very high. About 36% of energy consumption is used for heating or cooling indoors every year. Building energy conservation has become an important aspect to improve the efficiency of social energy use. In buildings, enclosure insulation takes about 70% of energy-saving tasks, and walls account for 2 / 3 of it. Therefore, the selection of wall insulation materials is extremely important for building energy conservation. At present, my country's external wall insulation materials are mainly polystyrene foam and polyurethane foam. Among them, polystyrene foam insulation materials are the most widely used because of their lowest cost and good thermal insulation properties; and polyurethane foam's heat insulation and sound insulation properties a...

Claims

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Application Information

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IPC IPC(8): C08G18/48C08G18/24C08G18/18C08G18/20C08K13/06C08K9/00C08K7/20C08K7/24C08K3/04C08K3/32C08K5/3492C08J9/14C08L75/08C08G101/00
Inventor 高振华赵君姜长乐米岩
Owner NORTHEAST FORESTRY UNIVERSITY
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