A kind of thermal insulation inorganic coating and preparation method thereof

A thermal insulation and inorganic coating technology, which is applied in the field of inorganic water-based thermal insulation coating and its preparation, can solve the problems of poor flame retardancy, high temperature resistance and water resistance of the coating, and achieve good flame retardancy, fire resistance and water resistance , The effect of low thermal conductivity

Active Publication Date: 2016-09-28
泉州三欣新材料科技有限公司
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  • Application Information

AI Technical Summary

Problems solved by technology

Patents such as CN201010601347, CN201210023962, CN201210230531, CN201210559548 and CN201310242852 disclose the combination of airgel powder (or particles) and polymer water-based emulsion (or latex) to prepare airgel organic composite coatings to obtain better barrier properties. Thermal properties, but the airgel organic composite coating system contains more organic components, resulting in the entire coating not being resistant to high temperatures and having poor flame retardancy; it is mentioned in the patent CN201310228556 that the airgel powder and inorganic silicate (Potassium silicate, sodium silicate) combined to prepare coatings, but the inorganic silicate system is not water-resistant, which limits its application

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  • A kind of thermal insulation inorganic coating and preparation method thereof

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Embodiment 1

[0020] (1) Preparation of airgel aqueous slurry

[0021] Take 1 part by mass of sodium octyl sulfonate surfactant and dissolve it in 100 parts by mass of water, add 25 parts by mass of airgel powder, and disperse for 0.5 h under high-speed stirring at 2000 r / min to obtain an airgel water-based slurry material;

[0022] (2) Preparation and coating of thermal insulation inorganic coatings

[0023] 100 parts by mass of magnesium oxide, 15 parts by mass of potassium dihydrogen phosphate, 10 parts by mass of borax, 100 parts by mass of airgel aqueous slurry, 1 part by mass of polyacrylamide, 10 parts by mass of nano-silica filler, and 5 parts by mass of glass fiber parts, 2 parts by mass of polydimethylsiloxane defoamer, 2.5 parts by mass of silane coupling agent and 50 parts by mass of deionized water, mix the materials together, stir and disperse evenly, that is, prepare a thermal insulation Inorganic coating: coating the prepared thermal insulation inorganic coating on the sur...

Embodiment 2

[0025] (1) Preparation of airgel aqueous slurry

[0026] Take 2 parts by mass of ammonium lauryl polyoxyethylene ether ammonium sulfate surfactant and dissolve it in 100 parts by mass of water, add 25 parts by mass of airgel powder, and disperse for 0.5 h under high-speed stirring at 2000 r / min to obtain air-condensation Glue-based paste;

[0027] (2) Preparation and coating of thermal insulation inorganic coatings

[0028] 100 parts by mass of magnesium oxide, 15 parts by mass of potassium dihydrogen phosphate, 2 parts by mass of borax, 5 parts by mass of airgel aqueous slurry, 0.5 parts by mass of polyethylene glycol, 8 parts by mass of glass fiber, 2 parts by mass of methanol, silane The ratio of 3 parts by mass of coupling agent to 20 parts by mass of deionized water, mix the materials together, stir and disperse evenly, and then prepare the thermal insulation inorganic coating; coat the prepared thermal insulation inorganic coating on the substrate The surface is dried ...

Embodiment 3

[0030] (1) Preparation of airgel aqueous slurry

[0031] Get 3 parts by mass of tallow trimethylammonium chloride surfactant and dissolve it in 100 parts by mass of water, add 25 parts by mass of airgel powder, and disperse for 0.5h under high-speed stirring at 2000 r / min to obtain airgel Gel aqueous slurry;

[0032] (2) Preparation and coating of thermal insulation inorganic coatings

[0033] 100 parts by mass of magnesium oxide, 40 parts by mass of potassium dihydrogen phosphate, 6 parts by mass of borax, 100 parts by mass of airgel aqueous slurry, 2 parts by mass of glyceryl tristearate, 30 parts by mass of nano-titanium dioxide filler, 15 parts by mass of glass fiber parts by mass, 0.1 parts by mass of ethanol, 1 part by mass of silane coupling agent, and 200 parts by mass of deionized water, mix the materials together, stir and disperse evenly, and then prepare the thermal insulation inorganic coating; The thermal insulation inorganic coating is coated on the surface of...

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Abstract

The invention discloses an inorganic thermal insulation paint and a preparation method thereof. The coating is prepared by combining the super thermal insulation function of the airgel material with the unique water resistance and flame retardancy of the magnesium phosphate cement (MPC). Compared with the existing organic polymer airgel composite coatings and ordinary silicate airgel composite coatings, the inorganic water-based thermal insulation coating of the present invention has low thermal conductivity, good water resistance, flame retardant and fire resistance Good, environmental protection and energy saving advantages. The present invention can be widely used in thermal insulation of inner and outer walls and roof surfaces of public buildings such as residential buildings, schools, hospitals, factories, etc., thermal expansion damage protection of large-volume buildings or facilities such as bridges and dams, and protection of ships, trains, buses, etc. The protection of the top sunshine surface and many other fields.

Description

technical field [0001] The invention relates to a thermal insulation coating and a preparation method thereof, in particular to an inorganic water-based thermal insulation coating combined with airgel powder and magnesium phosphate cement (MPC) and a preparation method thereof. Background technique [0002] SiO 2 Airgel is a kind of highly dispersed solid material with nano-scale particles aggregated to form a nano-porous network structure, and the pores are filled with a gaseous dispersion medium. Because of its nano-porous structure, low density, low dielectric constant, Low thermal conductivity, high porosity, high specific surface area and other characteristics, showing unique properties in mechanics, acoustics, heat, optics and other aspects, in aerospace, military, petroleum, chemical, mineral, communication, medical, building materials, electronics, metallurgy It has extensive and huge application value in many fields, and is called "the magic material that changes t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/34
Inventor 刘云晖
Owner 泉州三欣新材料科技有限公司
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