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Phenolic foam external wall thermal insulation material and preparation method thereof

An external wall thermal insulation and phenolic foam technology, which is applied in the field of building external wall materials, can solve the problems of poor toughness, low thermal conductivity, high strength and oxygen index of thermal insulation boards, and achieves remarkable toughening effect, good flame retardancy and heat resistance. performance effect

Inactive Publication Date: 2016-10-12
合肥广能新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the above problems of high thermal conductivity and poor toughness of phenolic foam boards, the present invention proposes a phenolic foam external wall insulation material, which has high strength and oxygen index and low thermal conductivity

Method used

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  • Phenolic foam external wall thermal insulation material and preparation method thereof

Examples

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Comparison scheme
Effect test

Embodiment 1

[0022] A phenolic foam external wall insulation material, calculated by parts by weight, comprising the following raw materials:

[0023] 65 parts of resole phenolic resin, 6 parts of calcium sulfate whiskers, 4 parts of Tween 80, 7 parts of cyclopentane, 12 parts of mixed acid of phosphoric acid and p-toluenesulfonic acid and 4 parts of toughening agent, the toughening agent is nano hydrogen A mixture of alumina and graphite oxide in 5 wt% sodium citrate solution.

[0024] The preparation method comprises the following steps:

[0025] 1) uniformly mixing resole phenolic resin, calcium sulfate whiskers, a mixed acid of phosphoric acid and p-toluenesulfonic acid, and a toughening agent at 50°C to obtain mixture A;

[0026] 2) Mix and stir the mixture A, Tween 80 and cyclopentane evenly, quickly pour it into a mold preheated at 40°C to foam, and then solidify.

Embodiment 2

[0028] A phenolic foam external wall insulation material, calculated by parts by weight, comprising the following raw materials:

[0029] 60 parts of resole phenolic resin, 4 parts of calcium sulfate whiskers, 3 parts of Tween 80, 5 parts of n-pentane, 11 parts of hydrochloric acid and 3 parts of toughening agent, toughening agent is nano aluminum hydroxide and graphite oxide at 3wt% A mixture formed in a sodium tartrate solution.

[0030] The preparation method comprises the following steps:

[0031] 1) Mix the resole phenolic resin, hydrochloric acid, calcium sulfate whiskers and toughening agent uniformly at 40°C to obtain a mixture A;

[0032] 2) Mix and stir the mixture A, Tween 80 and n-pentane evenly, quickly pour it into a mold preheated at 30°C to foam, and then solidify.

Embodiment 3

[0034] A phenolic foam external wall insulation material, calculated by parts by weight, comprising the following raw materials:

[0035] 68 parts of resole phenolic resin, 7 parts of calcium sulfate whiskers, 5 parts of Tween 80, 8 parts of n-pentane, mixed acid of phosphoric acid and p-toluenesulfonic acid (the mass ratio of phosphoric acid and p-toluenesulfonic acid is 3:1) 10 parts and 5 parts of toughening agent, toughening agent is the mixture that nano aluminum hydroxide and graphite oxide form in 7wt% sodium lactate solution.

[0036] The preparation method comprises the following steps:

[0037] 1) uniformly mixing resole phenolic resin, calcium sulfate whiskers, a mixed acid of phosphoric acid and p-toluenesulfonic acid, and a toughening agent at 55°C to obtain a mixture A;

[0038] 2) Mix and stir the mixture A, Tween 80 and n-pentane evenly, quickly pour it into a mold preheated at 45°C to foam, and then solidify.

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Abstract

The invention provides a phenolic foam external wall thermal insulation material and a preparation method thereof. The phenolic foam external wall thermal insulation material comprises the following raw materials by weight: 60-70 parts of resol, 4-8 parts of calcium sulfate whisker, 3-6 parts of a surfactant, 5-10 parts of a foaming agent, 10-15 parts of a curing agent and 3-6 parts of a toughening agent, which is a mixture formed by nano aluminum hydroxide and graphite oxide in an alcohol acid salt solution. The preparation method comprises the steps of: 1) mixing the resol, calcium sulfate whisker and the toughening agent evenly at 40-60DEG C to obtain a mixture A; and 2) mixing the mixture A, the surfactant and the foaming agent evenly, quickly pouring the mixture into a pre-heated mold to perform foaming, and conducting curing. The thermal insulation plate has high strength and oxygen index, and low thermal conductivity coefficient.

Description

technical field [0001] The invention belongs to the technical field of building exterior wall materials, and in particular relates to a phenolic foam exterior wall thermal insulation material and a preparation method thereof. Background technique [0002] Phenolic insulation board and polyurethane rigid foam are both organic thermosetting high-efficiency insulation materials. Especially in recent years, with the gradual improvement of building energy saving rate, the technical performance of applied insulation materials is getting higher and higher, and the market demand is increasing. In the application of thermal insulation materials in building applications, not only high physical and technical performance is required, but also fire protection performance must be achieved. Although the foam produced by resole phenolic resin and rigid polyurethane foam are relatively good insulation materials, the two types of insulation materials have different advantages and disadvantage...

Claims

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Application Information

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IPC IPC(8): C08L61/06C08K13/04C08K7/08C08K3/22C08K3/04C08K5/098C08J9/14
CPCC08K13/04C08J9/141C08J9/145C08J2203/14C08J2203/142C08J2361/06C08K3/04C08K3/22C08K5/098C08K7/08C08K2003/2227C08K2201/011C08L61/06
Inventor 刘涛
Owner 合肥广能新材料科技有限公司
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