Modified expanded perlite insulation board and preparation method thereof

Abstract

The invention provides a modified expanded perlite insulation board and a preparation method thereof. The insulation board is prepared from 6-9 parts of distilled water, 0.2-0.5 part of mildew preventive, 6-9 parts of styrene-acrylic emulsion, 40-45 parts of water glass, 0.2-0.4 part of hydrophobic agent and 36.1-46.7 parts of expanded perlite. The preparation method comprises the following steps of: (1) mixing and stirring evenly the 6-9 parts of distilled water, the 0.2-0.5 part of mildew preventive and the 6-9 parts of styrene-acrylic emulsion; (2) under the condition of stirring, adding the 40-45 parts of water glass to a mixture obtained in step (1) slowly and mixing and stirring evenly; (3) adding the 0.2-0.4 part of organosilicon hydrophobic agent and the 36.1-46.7 parts of expanded perlite to a mixture obtained in step (2), mixing and stirring evenly and pressing the obtained mixture into plates; and (4) drying and cooling the plates obtained in the step (3) and then packaging and putting the plates in a storage. By adopting the method, the modified expanded perlite insulation board with good thermal insulation performance, water-proof performance, mechanical property and fire-retardant performance can be prepared.

Description

technical field [0001] The invention relates to a thermal insulation material, in particular to a modified expanded perlite thermal insulation board and a preparation method thereof. Background technique [0002] Since the reform and opening up, China's economy has continued to develop rapidly, industrialization and people's living standards have continued to improve, and the consumption of energy such as oil and coal has increased, thus putting forward higher requirements for energy conservation. In my country's total energy consumption, building energy consumption accounts for more than 30%, which is one of the main aspects of my country's energy consumption. Relevant data show that the construction area of ​​new urban and rural buildings in my country is nearly 2 billion m2 each year, of which more than 85% are high-energy-consuming buildings; the existing buildings are nearly 42 billion m2, and about 95% are high-energy-consuming buildings. The annual power consumption ...

AI Technical Summary

Problems solved by technology

At present, the main disadvantages of inorganic thermal insulation materials are poor impact resistance and compressive strength, and high hygroscopicity.

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