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Hard polyurethane flame-retardant heat-insulation material for external walls and preparation method of hard polyurethane flame-retardant heat-insulation material

A rigid polyurethane, flame retardant and thermal insulation technology, applied in the field of thermal insulation materials, can solve the problems of conflict between fire and flame retardant properties and mechanical properties, and achieve good flame retardant effect, good thermal insulation, and good heat resistance.

Inactive Publication Date: 2017-09-15
HEFEI WANZHIJING DOORS & WINDOWS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the deficiencies of the prior art above, to provide a rigid polyurethane outer wall flame-retardant thermal insulation material and its preparation method, to solve the problem of conflicting fire-resistant flame-retardant properties and mechanical properties of polyurethane rigid foam thermal insulation materials in the past, and to provide A rigid polyurethane exterior wall flame-retardant insulation material with both flame-retardant properties and excellent mechanical properties

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] A rigid polyurethane exterior wall flame-retardant thermal insulation material, composed of components A and B, calculated in parts by weight, wherein component A consists of 70 parts of polyether polyol, 35 parts of phenolic resin, brominated epoxy 25 parts of resin, 20 parts of vitrified microbeads, 15 parts of expanded vermiculite, 10 parts of nano-silica, 5.5 parts of glass fiber, 7.5 parts of sepiolite fiber, 10 parts of filler, 12 parts of foaming agent and 7.5 parts of auxiliary agent , B component is polyphenyl polysubunit polyisocyanate;

[0029] The auxiliary agent includes the following components in parts by weight: 7.5 parts of foam stabilizer, 3 parts of catalyst, 4.5 parts of surfactant and 2 parts of flame retardant.

[0030] Wherein, the particle size of the expanded vermiculite is 40 mesh, and the bulk density is 95kg / m 3 , The thermal conductivity is 0.02W / m.K.

[0031] Wherein, the nano silicon dioxide is silicon dioxide rice noodles or hollow meso...

Embodiment 2

[0041] A rigid polyurethane exterior wall flame-retardant thermal insulation material, composed of components A and B, calculated in parts by weight, wherein component A consists of 60 parts of polyether polyol, 30 parts of phenolic resin, brominated epoxy 20 parts of resin, 10 parts of vitrified microbeads, 10 parts of expanded vermiculite, 5 parts of nano-silica, 3 parts of glass fiber, 5 parts of sepiolite fiber, 5 parts of filler, 8 parts of foaming agent and 5 parts of auxiliary agent , B component is polyphenyl polysubunit polyisocyanate;

[0042] The auxiliary agent includes the following components in parts by weight: 5 parts of foam stabilizer, 1 part of catalyst, 2 parts of surfactant and 0.5 part of flame retardant.

[0043] Wherein, the particle size of the expanded vermiculite is 30 mesh, and the bulk density is 90kg / m 3 , The thermal conductivity is 0.01W / m.K.

[0044] Wherein, the nano silicon dioxide is silicon dioxide rice noodles or hollow mesoporous silico...

Embodiment 3

[0054] A rigid polyurethane exterior wall flame-retardant thermal insulation material, composed of components A and B, calculated in parts by weight, wherein component A consists of 80 parts of polyether polyol, 40 parts of phenolic resin, brominated epoxy 30 parts of resin, 30 parts of vitrified microspheres, 20 parts of expanded vermiculite, 15 parts of nano-silica, 8 parts of glass fiber, 10 parts of sepiolite fiber, 15 parts of filler, 15 parts of foaming agent and 10 parts of auxiliary agent , B component is polyphenyl polysubunit polyisocyanate;

[0055] The auxiliary agent includes the following components in parts by weight: 10 parts of foam stabilizer, 5 parts of catalyst, 6 parts of surfactant and 3.5 parts of flame retardant.

[0056] Wherein, the particle size of the expanded vermiculite is 50 mesh, and the bulk density is 100kg / m 3 , The thermal conductivity is 0.03W / m.K.

[0057] Wherein, the nano silicon dioxide is silicon dioxide rice noodles or hollow mesopo...

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Abstract

The invention discloses a hard polyurethane flame-retardant heat-insulation material for external walls. The material is composed of a component A and a component B; the component A is prepared from, by weight, 60-80 parts of polyether polyol, 30-40 parts of phenolic resin, 20-30 parts of brominated epoxy resin, 10-30 parts of vitrified microspheres, 10-20 parts of expanded vermiculite, 5-15 parts of nano silicon dioxide, 3-8 parts of glass fibers, 5-10 parts of sepiolite fibers, 5-15 parts of filler, 8-15 parts of a foaming agent and 5-10 parts of auxiliary agents; the component B is polymethylene polyphenyl isocyanate. The hard polyurethane flame-retardant heat-insulation material which integrates excellent flame retardation and mechanical performances is provided to solve the problem of mutual contradiction between flame retardation and mechanical performances of previous rigid polyurethane foam heat-insulation materials.

Description

technical field [0001] The invention relates to the technical field of thermal insulation materials, in particular to a rigid polyurethane outer wall flame-retardant thermal insulation material and a preparation method thereof. Background technique [0002] The full name of polyurethane is polyurethane, which is a general term for macromolecular compounds containing repeated carbamate groups in the main chain. It is formed by addition polymerization of organic diisocyanate or polyisocyanate and dihydroxy or polyhydroxy compounds. Polyurethane foam material is currently recognized as the best thermal insulation material in the world. It has the advantages of small thermal conductivity, high compressive strength, good adhesion, and easy processing. It is widely used in electrical appliances, refrigerators and freezers, building walls, industrial pipelines and transportation. The thermal insulation of refrigerated vehicles is a new growth point of application demand in recent y...

Claims

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Application Information

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IPC IPC(8): C08G18/40C08G18/48C08G18/54C08G18/58C08J9/14C08K3/22C08K3/26C08K3/34C08K3/36C08K5/521C08K7/10C08K7/14C08K7/26C08K7/28C08K13/04C08G101/00
CPCC08G18/4045C08G18/48C08G18/542C08G18/58C08J9/141C08J2203/14C08J2375/08C08K3/22C08K3/26C08K3/34C08K3/346C08K3/36C08K5/521C08K7/10C08K7/14C08K7/26C08K7/28C08K13/04C08K2003/2224C08K2003/2227C08K2003/265C08K2201/003C08K2201/004C08K2201/011C08K2201/014C08G2110/0025
Inventor 武娟
Owner HEFEI WANZHIJING DOORS & WINDOWS CO LTD
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