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Molecular structure modified rigid polyurethane foam thermal insulation material

A technology of polyurethane rigid foam and molecular structure, which is applied in the field of thermal insulation materials, can solve the problems of affecting the fire-proof and flame-retardant effect, the fire-proof and flame-retardant is not mentioned, and the fire-proof and flame-retardant of polyurethane hard foam is not good, so as to achieve good flame-retardant effect, Effect of improving heat resistance and improving mechanical strength

Inactive Publication Date: 2016-06-08
吴婷婷
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The patent proposes that the system has a fire retardant function, and its fire retardant function is realized through the barrier effect of the interface mortar and the plastering polymer mortar. The fire and flame retardancy is not good, which will affect the fire and flame retardant effect of the whole system

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] The molecular structure modified polyurethane rigid foam insulation material in this embodiment is made of the following raw materials in parts by weight: 22 parts of polymerized polyisocyanate, 12 parts of phenolic resin, 6 parts of brominated epoxy resin, catalyst (dimethylethanolamine: dilaurel Dibutyltin dibutyltin (=1:1) 7 parts, halogen-free flame retardant (intumescent flame retardant: inorganic hydroxide: inorganic nanomaterial = 1:2:1) 5 parts, cyclopentane 4 parts, methyl 1 part of silicone oil, 8 parts of polyether polyol.

[0024] The preparation method comprises the following steps:

[0025] (1) take each component by above-mentioned parts by weight stand-by;

[0026] (2) Put polymeric polyisocyanate, phenolic resin, brominated epoxy resin and halogenated flame retardant into the reaction kettle in turn, stir evenly, then add catalyst, cyclopentane and methyl silicone oil, stir for 10min, and obtain molecular structure modification Polyurethane rigid foam...

Embodiment 2

[0028] The molecular structure modified polyurethane rigid foam insulation material of this embodiment is made of the following raw materials in parts by weight: 25 parts of polymerized polyisocyanate, 13 parts of phenolic resin, 7 parts of brominated epoxy resin, catalyst (dimethylethanolamine: dilaurel Dibutyltin dibutyltin (=1:2) 7 parts, halogen-free flame retardant (intumescent flame retardant: inorganic hydroxide: inorganic nanomaterial = 2:2:1) 5 parts, cyclopentane 5 parts, methyl 2 parts of silicone oil, 9 parts of polyether polyol.

[0029] The preparation method comprises the following steps:

[0030] (1) take each component by above-mentioned parts by weight stand-by;

[0031] (2) Put polymeric polyisocyanate, phenolic resin, brominated epoxy resin and halogenated flame retardant into the reaction kettle in turn, stir evenly, then add catalyst, cyclopentane and methyl silicone oil, stir for 12min, and obtain molecular structure modification Polyurethane rigid foa...

Embodiment 3

[0033] The molecular structure modified polyurethane rigid foam insulation material of this embodiment is made of the following raw materials in parts by weight: 28 parts of polymerized polyisocyanate, 14 parts of phenolic resin, 9 parts of brominated epoxy resin, catalyst (dimethylethanolamine: dilaurel Dibutyltin dibutyltin (=1:2) 8 parts, halogen-free flame retardant (intumescent flame retardant: inorganic hydroxide: inorganic nanomaterial = 3:3:1) 6 parts, cyclopentane 6 parts, methyl 3 parts of silicone oil, 11 parts of polyether polyol. The preparation method comprises the steps of:

[0034] (1) take each component by above-mentioned parts by weight stand-by;

[0035] (2) Put polymeric polyisocyanate, phenolic resin, brominated epoxy resin and halogenated flame retardant into the reaction kettle in turn, stir evenly, then add catalyst, cyclopentane and methyl silicone oil, stir for 15min, and obtain molecular structure modification Polyurethane rigid foam insulation ma...

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PUM

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Abstract

The invention discloses a molecular structure modified rigid polyurethane foam thermal insulation material and relates to the field of thermal insulation materials. The molecular structure modified rigid polyurethane foam thermal insulation material is prepared from polymerization polyisocyanates, bakelite, brominated epoxy resin, catalysts, a halogen-free flame retardant, cyclopentane, methylsilicone oil and polyether polyol. The molecular structure modified rigid polyurethane foam thermal insulation material has high mechanical strength and thermostability, and is safe and free of pollution.

Description

technical field [0001] The invention relates to the field of thermal insulation materials, in particular to a molecular structure modified rigid polyurethane foam thermal insulation material. 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 years. However, compared with tradit...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G18/54C08G18/48C08G18/58C08G18/61C08K3/20C08K3/00C08L75/08C08G101/00
CPCC08G18/48C08G18/542C08G18/582C08G18/61C08K3/00C08K3/20C08K2201/011C08L75/08C08L2201/02C08L2201/08C08L2203/14C08G2110/0025
Inventor 吴婷婷
Owner 吴婷婷
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