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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 improving flame retardancy and thermal insulation, and provides a vitrified microbead polyurethane foam composite material and a preparation method thereof

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

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specific Embodiment approach 1

[0029] Specific implementation mode 1: The vitrified microbead polyurethane foam composite material in this embodiment consists of 200 to 270 parts by mass of pretreated vitrified microbeads with a particle size of 32 to 120 mesh, 100 parts of polyurethane white material, and 120 to 150 parts Polyurethane black material is mixed with 35-45 parts of solid flame retardant, and then it is prepared through microwave-assisted heating, foaming compounding and curing;

[0030] The polyurethane white material consists 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 Parts of dichlorofluoroethane;

[0031] The catalyst is a tin catalyst and / or an amine catalyst, the tin catalyst is stannous octoate, dibutyltin dilaurate, and the amine catalyst is triethylenediamine, 2,2'- Dimorpholino diethyl ether, N,N-dimethylcyclohexylamine or diethanolamine;

[0032] Described polyuretha...

specific Embodiment approach 2

[0036] Specific embodiment two: the difference between this embodiment and specific embodiment one is that the vitrified microbead polyurethane foam composite material consists of 250 parts by weight of pretreated vitrified microbeads with a particle size of 32 to 100 meshes, 100 parts of polyurethane After mixing white material, 130 parts of polyurethane black material and 40 parts of solid flame retardant, it is prepared through microwave-assisted heating, foaming compounding and curing. Others are the same as in the first embodiment.

specific Embodiment approach 3

[0037] Embodiment 3: The difference between this embodiment and Embodiment 1 is that the polyurethane white material consists of 50 parts by weight of polyether 4110, 5 parts of polyether 403, 40 parts of polyether 210, 1.5 parts of catalyst, 3 parts by weight. Parts of water and 10 parts of dichlorofluoroethane composition. Others are the same as in 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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