A kind of inorganic thermal insulation mortar based on hydrophobic airgel and preparation method thereof

Abstract

The invention provides inorganic insulation mortar based on hydrophobic aerogel and a preparation method thereof; the inorganic insulation mortar based on hydrophobic aerogel is a mixture of, by weight, 110-170 parts of cement, 30-96 parts of light aggregate, 5-25 parts of hydrophobic aerogel, 0.2-2.0 parts of cellulose ether, 0.2-2.0 parts of an air entraining agent, 0.-0.3 part of starch ether, 0.3-0.6 part of wood fiber, 1-2 parts of PVA (polyvinyl alcohol), and 300-580 parts of water. The preparation method comprises the steps of 1, weighing the raw materials according to the parts by weight; 2, mixing well light aggregate and hydrophobic aerogel in advance; 3, mixing well the raw materials except for the light aggregate, hydrophobic aerogel and water, and stirring well with weighed water to form slurry; 4, adding the mixture of the light aggregate and hydrophobic aerogel in step 2 into the slurry of step 3, stirring slowly, and allowing standing to obtain the inorganic insulation mortar based on hydrophobic aerogel.

Description

technical field [0001] The invention belongs to the technical field of building energy saving and new materials, and relates to a building thermal insulation material and a preparation method thereof; in particular, it relates to an inorganic thermal insulation mortar based on hydrophobic airgel and a preparation method of the inorganic thermal insulation mortar. Background technique [0002] my country's existing construction area is about 40 billion m 2 , most of which are high energy consumption buildings; on the other hand, there are nearly 2 billion m2 of new buildings every year 2 , More than 95% of new buildings are still high energy consumption buildings. Building energy consumption accounts for about 1 / 3 of the total energy consumption of the society, and huge building energy consumption has become a major burden on the national economy. During the "Thirteenth Five-Year Plan" period, building energy conservation has been listed as an important task for national en...

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Problems solved by technology

However, because ordinary aerogels are easy to absorb moisture, aerogels generally need to be treated with water-repellent when used as thermal insulation materials.

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