Modified polyphenolic aldehyde-urethane foam thermal insulation board and preparation method thereof

A technology of polyphenolic and thermal insulation boards, which is applied in the field of modified polyphenolic-urethane foam thermal insulation boards and its preparation, can solve the problems of water absorption and mechanical properties that are difficult to achieve, polystyrene boards with poor cold and heat resistance, and resistance to heat. In order to avoid problems such as poor combustion performance, it can reduce the increase in investment in production equipment, increase the filling volume, and achieve the effects of good flexibility

Inactive Publication Date: 2013-03-13
滕州市华海新型保温材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above-mentioned materials have their own advantages and disadvantages. Polyurethane has better thermal insulation effect, but its flame retardant performance is poor, and the price is relatively high; although rock wool has remarkable flame retardant effect, its water absorption and mechanical properties are difficult to meet the requirements of external walls. Requirements for heat preservation; while polystyrene board has poor cold and heat resistance, especially poor flame retardancy; phenolic price is moderate, flame retardancy is relatively significant, but brittle

Method used

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  • Modified polyphenolic aldehyde-urethane foam thermal insulation board and preparation method thereof
  • Modified polyphenolic aldehyde-urethane foam thermal insulation board and preparation method thereof
  • Modified polyphenolic aldehyde-urethane foam thermal insulation board and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0023] According to the weight ratio, add 100 parts of polyphenolic-urethane resin, 3 parts of surfactant silicone oil, 6 parts of n-pentane, 2 parts of glass fiber, and 30 parts of expanded particle EPS (0.6~1.0mm), mix them, and then add them to the mixture After adding 8 parts of curing agent 50% sulfuric acid into the mold, it will be foamed and cured by heating at 70°C and pressurized at 0.1MPa.

Embodiment 2

[0025] According to the weight ratio, add 100 parts of polyphenolic-urethane resin, 4 parts of silicone oil, 8 parts of 141b, 4 parts of aluminum hydroxide, and 50 parts of PVC (0.6~1.0mm and 1.6~2.5mm weight ratio is 1:1) for mixing, Then add 10 parts of curing agent 85% phosphoric acid to the mixture, and then input it into the mold to foam and solidify by heating at 100°C and pressurizing at 0.2MPa.

Embodiment 3

[0027] According to the weight ratio, add 100 parts of polyphenolic-urethane resin, 4 parts of Tween 80, 6 parts of n-pentane, and 60 parts of expanded particle EPS (0.6~1.0mm and 1.6~2.5mm weight ratio 3:2), and mix , and then add 12 parts of curing agent 50% sulfuric acid to the mixture, and then input it into the mold by heating at 90°C and pressurizing at 0.2MPa for foaming and curing.

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Abstract

The invention discloses a modified polyphenolic aldehyde-urethane foam thermal insulation board with excellent fireproof thermal insulation performance and a preparation method thereof. The foaming particles are quickly foamed and expanded by use of the high heat released by the reaction between the modified polyphenolic aldehyde-urethane resin and a curing agent, and a foaming agent synchronously foams the modified polyphenolic aldehyde-urethane resin at high temperature before curing and forming. The modified polyphenolic aldehyde-urethane foam thermal insulation board comprises the following raw materials in parts by mass: 100 parts of modified polyphenolic aldehyde-urethane resin, 3-6 parts of surfactant, 5-9 parts of foaming agent and 0-6 parts of filler. The preparation method comprises the following steps of: mixing and stirring the modified polyphenolic aldehyde-urethane resin, the surfactant, the foaming agent and the filler according to the parts by mass; uniformly mixing the mixture obtained by mixing and stirring with 30-70 parts of foaming particles; mixing the uniformly mixed mixture containing the foaming particles with 6-12 parts of curing agent, and feeding into a continuous production line; and heating to 60-100 DEG C and pressurizing to 0.1-0.3MPa, foaming and curing for forming.

Description

technical field [0001] The invention relates to a production process of an organic thermal insulation material, and more specifically relates to a modified polyphenolic-urethane foam insulation board and a preparation method thereof. Background technique [0002] The external wall insulation system originated in Europe in the 1960s, and was valued and developed after the first energy crisis. In the domestic market, external wall insulation materials mainly include polystyrene board, rock wool, polyurethane, phenolic and other products. The above-mentioned materials have their own advantages and disadvantages. Polyurethane has better thermal insulation effect, but its flame retardant performance is poor, and the price is relatively high; although rock wool has remarkable flame retardant effect, its water absorption and mechanical properties are difficult to meet the requirements of external walls. The requirement of heat preservation; while the cold and heat resistance of po...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L75/04C08L27/06C08K7/14C08K3/22C08J9/14
Inventor 王世昌钟东南孙志武张经泽严来春孙浩张洪国
Owner 滕州市华海新型保温材料有限公司
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