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Preparation method of composite foamed building wall thermal-insulation material

A technology for building walls and composite foaming, which is applied in ceramic products, applications, household appliances, etc., can solve the problems of affecting the foaming effect and foaming material properties, loss of thermal insulation ability, and increase of bulk density, etc., to achieve significant sound insulation, production The effect of low cost and high porosity

Active Publication Date: 2015-09-09
刘方成
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But its biggest disadvantage is its strong water absorption, which can reach 2 to 3 times its own volume, thus completely losing its heat preservation ability.
Not only that, its porous structure and strong water absorption will absorb a large amount of wood liquefiable expandable resin when it is combined with wood liquefiable expandable resin to increase the bulk density, which not only increases the cost, but also seriously affects the foaming effect and foam properties

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] A method for manufacturing a composite foamed building wall insulation material is carried out in the following steps:

[0029] 1) Preparation of hydrophobic expanded perlite:

[0030] Select perlite ore with a particle size of 0.05-0.1mm, preheat it to make its combined water content (water content) reach 2-3%, and then roast it in a furnace at 1200-1230°C to make it expand to 20% of its original volume. After doubling, it becomes expanded perlite and is exported with a negative pressure output pipeline; and then sprays the expanded perlite in the negative pressure output pipeline with hydroxyl hydrogen-containing silicone oil (consumption is 0.5% of the expanded perlite weight), and the sprayed hydrophobic agent formed is sticky Attached to the surface of expanded perlite at a temperature of 600-630°C, a film is formed on the surface of expanded perlite in 2-5 seconds, and the output is cooled for use;

[0031] 2) Preparation of wood liquefaction expandable resin:

...

Embodiment 2

[0036] A method for manufacturing a composite foamed building wall insulation material is carried out in the following steps:

[0037] 1) Preparation of hydrophobic expanded perlite:

[0038] Select perlite ore with a particle size of 0.05-0.1mm, preheat it to make the combined water content reach 2-3%, and then roast it in a furnace at 1230-1260°C to make it expand to 25 times the original volume and become expanded The perlite is also exported with a negative pressure output pipeline; then sprayed to the expanded perlite in the negative pressure output pipeline with methyl hydrogen-containing silicone oil (consumption is 0.6% of the expanded perlite weight), and the mist-like hydrophobic agent formed adheres to the temperature. On the surface of expanded perlite at around 600-800°C, a film is formed on the surface of expanded perlite for 2-5 seconds, and the output is cooled for use;

[0039] 2) Preparation of wood liquefaction expandable resin:

[0040]Add wood flour with...

Embodiment 3

[0044] A method for manufacturing a composite foamed building wall insulation material is carried out in the following steps:

[0045] 1) Preparation of hydrophobic expanded perlite:

[0046] Select perlite ore with a particle size of 0.05-0.1mm, preheat it to make the combined water content reach 2-3%, and then roast it in a furnace at 1260-1300°C to make it expand to 30 times the original volume and become expanded Perlite is also exported with a negative pressure output pipeline; then spray to the expanded perlite in the negative pressure output pipeline with sodium hydroxysiliconate (consumption is 0.8% of the expanded perlite weight), and the mist hydrophobic agent formed adheres to the temperature still On the surface of expanded perlite at around 600-800°C, a film with a certain strength is formed on the surface of expanded perlite in 2-5 seconds, and the output is cooled for use; the test data of the expanded perlite is: the obtained bulk density is 70-150kg / m 3 , the...

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Abstract

The invention relates to a preparation method of a composite foamed building wall thermal-insulation material. The invention aims to provide a thermal-insulation material which has the advantages of excellent thermal-insulation property, favorable heat-insulating property (low heat conductivity coefficient) and favorable noise absorption and reduction properties. The method provided by the invention has the advantages of simple technical process and low manufacturing cost. The technical scheme is as follows: the manufacturing method comprises the following steps: 1) preparing hydrophobic expanded perlite; 2) preparing a wood liquefied expandable resin; and 3) preparing the composite foamed building wall thermal-insulation material.

Description

technical field [0001] The invention relates to a preparation method of a building wall thermal insulation material, in particular to a preparation method of a building wall thermal insulation material made by composite foaming of wood chip liquefaction product resin and expanded perlite. Background technique [0002] The development of building insulation materials is an important guarantee for the country to develop energy-saving buildings and promote green buildings in new rural areas. However, the development of wall insulation materials is not satisfactory. It has light weight and excellent thermal insulation performance, and there are too few biomass lightweight insulation products that can be directly used and assembled on the construction site. The construction site is wet and the construction efficiency is low. situation will continue to exist for a long time. [0003] On the other hand, with the rapid reduction of global timber resources and the strengthening of f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B20/06C04B14/18C04B26/10C04B38/02
Inventor 刘方成
Owner 刘方成
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