Hydrophobic nano silicon dioxide aerogel aqueous slurry

Abstract

The invention discloses hydrophobic nano silicon dioxide aerogel aqueous slurry and belongs to the fields of buildings and houses, industries, industrial mechanical equipment and other fields requiring heat preservation and thermal insulation. The slurry is mainly applied to additives of aqueous heat-preservation coatings or heat-preservation putty in places with heat preservation or thermal insulation in the various fields, and is mainly characterized by being prepared from the following raw materials and components in parts by mass: 15-25 parts of hydrophobic silicon dioxide aerogel, 35-70 parts of a solvent, 0.5-1 part of a moistening dispersant, 1-1.5 parts of an adhesion reinforcing agent, 1.5-3.5 parts of a water repellent, 0.5-1 part of a water retaining agent and 10-25 parts of functional packing.

Description

technical field [0001] The invention belongs to the field of building houses, industrial factories, industrial machinery and equipment and the fields requiring thermal insulation, and is mainly used as an additive for water-based thermal insulation coatings or thermal insulation putty in places requiring thermal insulation or heat insulation in the above various fields. Background technique [0002] At present, domestic thermal insulation materials are divided into organic thermal insulation materials and inorganic thermal insulation materials. Organic thermal insulation materials such as polystyrene, polyurethane, phenolic and other materials have good thermal insulation effects, low thermal conductivity, low water absorption, and moderate prices. The construction is convenient, so it can be widely used in the market; however, organic thermal insulation materials also have their own shortcomings, such as low fire resistance, high temperature resistance, and flammability. Th...

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Problems solved by technology

[0002] At present, domestic thermal insulation materials are divided into organic thermal insulation materials and inorganic thermal insulation materials. Organic thermal insulation materials such as polystyrene, polyurethane, phenolic and other materials have good thermal insulation effects, low thermal conductivity, low water absorption, and moderate prices. The construction is convenient, so it can be widely used in the market; however, organic thermal insulation materials also have their own shortcomings, such as low fire resistance, high temperature resistance, and flammability. Therefore, the application of organic insulation materials has gradually been restricted in recent years.

Inorganic thermal insulation materials, such as thermal insulation mortar, thermal insulation rock wool, inorganic thermal insulation fiber, etc., have the advantages of high fire resistance, high temperature resistance, and flame retardancy. They are widely used in many applications with high fire resistance, but inorganic insulation materials also have their own advantages. Disadvantages, such as poor thermal insulation effect, high thermal conductivity, high water absorption, etc., cannot meet the technical requirements in many application places

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