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Polyurethanes compound modified phenolic foam plastic and method for preparing same

A technology of phenolic foam plastic and ester compound, which is applied in the field of phenolic foam plastic and its preparation, can solve the problems of phenolic foam plastic being easily aged and become brittle, rapid weight loss, pulverization and the like, and achieves improved thermal insulation effect, high combustion grade, The effect of high closed cell ratio

Inactive Publication Date: 2009-12-09
北京振利高新技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a kind of polyurethane compound modified phenolic foam plastic and its preparation method, to solve the problem that the phenolic foam plastic is easy to age and become brittle and pulverized rapidly when exposed to light, and it is easy to cause degradation and rapid weight loss when it encounters water or moisture. The problem

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] The aniline phenolic resin is synthesized from phenol, aniline and formaldehyde in a molar ratio of 1:0.045:1.3, that is, the synthesis reaction is carried out according to the following mass ratio: 100 parts of phenol, 4.5 parts of aniline, 112 parts of 37.1% formaldehyde solution, and 50% of the catalyst. 5 parts of strong alkali solution.

[0046] The compound aniline phenolic resin formula is 100 parts of aniline phenolic resin, the surfactant is 2 parts of methyl silicone oil, 3.5 parts of "Tween-80", 1 part of the dehydration composite of alkylphenol-polyglycol ether and castor oil, The foaming agent is 16 parts of n-pentane, the modifier is 15 parts of dimethyl methyl phosphate, 2 parts of polyethylene glycol with an average molecular weight of 400, 2 parts of hydroxy silicone oil, and 2 parts of aluminum trihydrate.

[0047] The average molecular weight of the polyol selected for the synthesis of the polyurethane compound is 2000, and the -OH / -NCO of the polyol ...

Embodiment 2

[0058] The aniline phenolic resin is synthesized from phenol, aniline and formaldehyde in a molar ratio of 1:0.04:1.2, that is, the synthesis reaction is carried out according to the following mass ratio: 100 parts of phenol, 4 parts of aniline, 103 parts of 37.1% formaldehyde solution, and a catalyst of 50% 4 parts of strong alkali solution.

[0059] The compound aniline phenolic resin formula is 100 parts of aniline phenolic resin, the surfactant is 2.0 parts of methyl silicone oil, 4.0 parts of "Tween 80", and 1.3 parts of the dehydrated composite of alkylphenol-polyethylene glycol ether and castor oil. Foaming agent selects 12 parts of n-butane, modifier is 3 parts of tricresyl phosphate, 6 parts of dimethyl methyl phosphate, 2.0 parts of polyethylene glycol with an average molecular weight of 1000, 5 parts of hydroxy silicone oil, antimony trioxide 3 copies.

[0060] The average molecular weight of the polyol selected for the synthesis of the polyurethane compound is 200...

Embodiment example 3

[0070] The aniline phenolic resin is synthesized from phenol, aniline and formaldehyde in a molar ratio of 1:0.05:1.5, that is, the synthesis reaction is carried out according to the following mass ratio: 100 parts of phenol, 5 parts of aniline, 129 parts of 37.1% formaldehyde solution, and 30% of the catalyst. 6 parts of strong alkaline solution.

[0071] The compound aniline phenolic resin formula is 100 parts of aniline phenolic resin, the surfactant is 2.0 parts of methyl silicone oil, 5 parts of "Tween 80", and 0.5 part of the dehydrated composite of alkylphenol-polyethylene glycol ether and castor oil. Foaming agent selects 6 parts of n-pentane, 8 parts of cyclopentane, the modifier is 2 parts of tributyl phosphate, 10 parts of dimethyl methyl phosphate, 1.8 parts of polyethylene glycol with an average molecular weight of 600, 2 parts of hydroxy silicone oil parts, 2 parts of antimony trioxide, and 2 parts of ultrafine silica.

[0072] The average molecular weight of th...

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PUM

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Abstract

A polyurethane compound modified phenolic foam plastic and a preparation method thereof, which is composed of 100 parts of composite aniline phenolic resin, 15-30 parts of polyurethane compound, and 15-30 parts of curing agent. Foamed plastics obtained by mixing reaction foaming. The invention solves two major obstacles in the field of thermal insulation of phenolic foam plastics used in external walls: one is easy to cause degradation and weight loss when exposed to water and moisture, and the other is rapid embrittlement and pulverization when exposed to light. The foamed plastic obtained by the invention has soft and delicate hand feeling, low density, low thermal conductivity and good thermal insulation performance. The foaming agent is water and alkanes, does not contain freon, has good environmental protection effect, and the coefficient of global warming effect is zero. The polyurethane compound-modified phenolic foam provided by the invention is used as a thermal insulation material in external wall and roof thermal insulation projects, and can significantly improve the thermal insulation and fireproof effects of the wall and roof.

Description

(1) Technical field [0001] The invention relates to a building thermal insulation material and a preparation method thereof, in particular to a phenolic foamed plastic and a preparation method thereof. (2) Background technology [0002] Phenolic foam itself has the advantages of low thermal conductivity, high combustion grade, low smoke and low toxicity, and low price. However, in the field of external wall insulation, the application of phenolic foam has not been effectively promoted. The main reason is that the existing phenolic foam is easy to age quickly, become brittle and pulverize when exposed to light, and it is easy to cause degradation and rapid weight loss when exposed to water and moisture. These defects of the existing phenolic foam greatly limit its ideal thermal conductivity, strength and anti-aging stability for a long time, so it is difficult to be used in building exterior wall and roof insulation projects. If the above-mentioned defects of phenolic foam ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L61/14C08J9/04C08L75/06C08L75/08
Inventor 马成彪朱青
Owner 北京振利高新技术有限公司
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