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Composite thermal-insulation board and preparation method thereof

A composite material and thermal insulation board technology, applied in the field of building materials, can solve the problems of low water absorption rate, high absorption rate, large thermal conductivity, etc., and achieve the effects of reducing water absorption rate, high tensile strength, and cost reduction

Inactive Publication Date: 2017-12-01
合肥泓定科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problems of large thermal conductivity and high absorption rate existing in existing thermal insulation materials, the present invention proposes a composite thermal insulation board. Alkali grid cloth

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Modified expanded perlite is prepared by the following method:

[0024] Add the expanded perlite to the acrylic resin emulsion and stir evenly, then add KH550 and triethoxysilane, heat in a water bath to 50°C, stir well, react for 3 hours, then remove and dry.

Embodiment 2

[0026] The preparation method of modified expanded perlite is:

[0027] Add the expanded perlite to the acrylic resin emulsion and stir evenly, then add KH570 and triethoxysilane, heat in a water bath to 70°C, stir well, react for 2 hours, then remove and dry.

Embodiment 3

[0029] A composite insulation board, comprising the following raw materials in parts by weight:

[0030] 25 parts of modified expanded perlite in Example 1, 12 parts of polystyrene primary particles, 90 parts of magnesium cement, 6 parts of diatomaceous earth, 8 parts of magnesium silicate fiber, 18 parts of pure acrylic emulsion, 1.5 parts of carboxylic acid, rosin soap 0.8 parts of quasi-foaming agent, 110 parts of water.

[0031] The preparation method comprises the following steps:

[0032] 1) Put the modified expanded perlite, magnesium cement, water and magnesium silicate fiber of Example 1 into the mixer in proportion and stir for 6 minutes, then add pure acrylic emulsion, carboxylic acid and rosin soap foaming agent and stir for 1.6 minutes;

[0033] 2) Add primary polystyrene particles from the feeding port or use an air pump to drive the primary polystyrene particles into the bottom of the slurry prepared in step 1), and stir until the slurry is completely wrapped o...

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Abstract

The invention provides a composite thermal-insulation board and a preparation method thereof. The composite thermal-insulation board is prepared from raw materials in parts by weight as follows: 20-30 parts of modified expanded perlite, 10-15 parts of polyphenyl primary particles, 60-120 parts of magnesium cement, 5-8 parts of diatomite, 6-10 parts of inorganic reinforced fiber, 15-20 parts of an adhesive, 1-2 parts of a curing agent, 0.6-1.2 parts of a rosin soap type foaming agent and 100-120 parts of water, wherein the modified expanded perlite is mainly prepared from expanded perlite, an acrylic resin emulsion, a silane coupling agent and an organosilicone water repellent. The thermal-insulation board is good in thermal insulation performance and fireproof performance and low in water absorption rate and is not required to be composited with alkali-resistant gridding cloth on two surfaces.

Description

technical field [0001] The invention belongs to the field of building materials, and in particular relates to a composite material insulation board and a preparation method thereof. Background technique [0002] There are many types of insulation materials at home and abroad. According to the classification of materials, insulation materials can be divided into three categories: metal insulation materials, organic insulation materials, and composite material insulation boards. Metal insulation materials, but the supply of this material is very small and the price is very expensive. As a building insulation material, it will greatly increase the cost and cannot be widely used. Organic thermal insulation materials are easy to burn, easy to produce toxic gas at high temperature, and have poor aging resistance and fire resistance. These shortcomings limit the wide use of organic thermal insulation materials. [0003] Among inorganic thermal insulation materials, rock wool boar...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/30C04B20/10
CPCC04B28/30C04B20/1051C04B14/185C04B16/04C04B14/08C04B14/4643C04B24/2641C04B24/04C04B24/34C04B24/2676C04B24/06C04B20/1033
Inventor 汪琦汪泽维
Owner 合肥泓定科技有限公司
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