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Polyurethanes compound modified phenolic foam plastic and method for preparing same

A technology of phenolic foamed plastics and ester compounds, which is applied in the field of phenolic foamed plastics and its preparation, can solve the problems that phenolic foamed plastics are prone to rapid aging and brittleness, rapid weight loss, and pulverization, etc., and achieve improved heat preservation effect, high combustion level, The effect of high closed cell ratio

Inactive Publication Date: 2008-03-05
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 by phenol, aniline and formaldehyde in a molar ratio of 1:0.045:1.3, and 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 a catalyst of 50% 5 parts of strong alkali solution.

[0046] The formula of compound aniline phenolic resin 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 dehydration compound of alkylphenol polyglycol ether and castor oil, foaming 16 parts of n-pentane were selected as the agent, 15 parts of dimethyl methyl phosphate as the modifier, 2 parts of polyethylene glycol with an average molecular weight of 400, 2 parts of hydroxyl 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 poly...

Embodiment 2

[0058] The aniline phenolic resin is synthesized by phenol, aniline and formaldehyde at a molar ratio of 1:0.04:1.2, and 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 50% catalyst 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", 1.3 parts of the dehydration compound of alkylphenol polyglycol ether and castor oil, foaming 12 parts of n-butane were selected as the agent, 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 hydroxyl silicone oil, and 3 parts of antimony trioxide were selected as modifiers. share.

[0060] The average molecular weight of the polyol selected for the synthesis of the polyurethan...

Embodiment example 3

[0070] The aniline phenolic resin is synthesized by phenol, aniline and formaldehyde in a molar ratio of 1:0.05:1.5, and 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% catalyst 6 parts of strong alkali 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", 0.5 parts of the dehydration compound of alkylphenol polyethylene glycol ether and castor oil, foaming 6 parts of n-pentane and 8 parts of cyclopentane were selected as the agent, 2 parts of tributyl phosphate, 10 parts of dimethyl methyl phosphate, 1.8 parts of polyethylene glycol with an average molecular weight of 600, and 2 parts of hydroxyl silicone oil were used as modifiers. , 2 parts of antimony trioxide, 2 parts of superfine silicon dioxide.

[0072] The average molecular wei...

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Abstract

The present invention is polyurethane compound modified phenolic foam plastic and its preparation process. The modified phenolic foam plastic is prepared with aniline phenolic resin 100 weight portions, polyurethane compound 15-30 weight portions and curing agent 15-30 weight portions, and through mixing, reaction and foaming. The polyurethane compound modified phenolic foam plastic has fine hand feeling, low density, low heat conducting coefficient, high heat insulating performance and environment friendship. It is used as the heat insulating material for outer wall and roof, and can raise the heat insulating and fire-proofing effect.

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 cheap price. However, in the field of external wall insulation, the application of phenolic foam plastics has not been effectively promoted. The main reason is that the existing phenolic foamed plastics are prone to rapid aging, becoming brittle and pulverized when exposed to light, and are easily degraded and rapidly lose weight when exposed to water and moisture. These defects of the existing phenolic foamed plastics greatly limit its ideal thermal conductivity, strength and anti-aging stability for a long time, so it is also difficult to apply to building exterior walls and roof insulation projects. If the above-men...

Claims

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Application Information

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Patent Type & Authority Applications(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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