Aerogel Spray Coating

 

Key Properties：

1. Excellent thermal insulation performance: the very low thermal conductivity of the aerogel itself makes the aerogel spray coating have excellent thermal insulation effect, and the thermal conductivity is 0.035W/(m · K), which can significantly reduce heat transfer. Compared with many traditional thermal insulation coatings, it can reduce more heat conduction under the same conditions.

 

2. High construction efficiency: The spraying method can quickly and evenly cover the surface of a large area or complex shape, greatly shortening the construction time and improving the construction efficiency. Compared with some insulation materials that need to be installed or applied block by block, it can save a lot of labor and time costs.

 

3. Strong adhesion: Through special formulation design and spraying process, aerogel spraying coating can be closely combined with a variety of substrate surfaces, has good adhesion, is not easy to fall off, and can maintain stable performance during long-term use.

 

4. Waterproof and moisture-proof: Part of the aerogel spray coating has good hydrophobic performance, can effectively prevent water vapor penetration, protect the coated object from the influence of wet environment, maintain the stability of heat insulation performance, suitable for wet or susceptible to moisture environment.

1. Inhibit heat convection
The nanoporous structure inside the aerogel is so small that air molecules lose the ability to flow freely in it, and the inside of the coating is close to a vacuum state, which effectively prevents heat transfer through air convection.

2. Reduce heat transfer
The existence of nearly infinite nano-pores in aerogel makes the heat conduction ability of solid extremely decreased. When heat is transferred in the coating, because most of the particles are in a vacuum state or the particle gap is less than 50nm, the heat conduction efficiency is almost zero, which greatly reduces the heat conduction in the coating.

3. Reflect thermal radiation
The countless nanoscale pore walls inside the aerogel produce an effect close to "infinite shielding panels", which can reflect the heat out, and its three-dimensional mesh structure forms a reflective surface and a refracting surface of thermal radiation, which has an efficient shielding effect on infrared radiation, and can reflect most of the thermal radiation back to reduce the absorption of heat.

1. What are the requirements of the construction process?
Aerogel spray coating is usually constructed by spraying process, and the base layer should be treated before construction to ensure that it is solid, smooth and dry, and to clean up impurities such as oil and dust. The coating should be fully stirred before application, and the stirring time should be more than 3 minutes. The construction environment temperature should be above 5℃, the relative humidity should be below 60% or 85%, and the construction should be avoided in bad weather conditions.

2. In what fields can it be applied?
Aerogel spraying coating can be widely used in the external walls, roofs, basements and other parts of the construction field. All kinds of industrial pipelines, storage tanks, reactors and other equipment in the industrial field; Aircraft fuselage, wing, engine compartment and other parts in the aerospace field; In the field of electronic and electrical appliances, computer cpus, graphics cards and other heating components, as well as mobile phones, tablets and other mobile electronic products such as the shell or cooling module.

3. What are the advantages over traditional insulation materials?
Traditional thermal insulation materials such as rock wool board, polystyrene foam board, etc., have problems such as large thickness, high density, easy water absorption, poor fire performance and so on. In contrast, the aerogel spray coating has better thermal insulation performance, and the thickness is only 1/15-1/20 of the traditional material under the same thermal insulation effect. Low density, can reduce the building load; Good waterproof and moisture-proof performance, can effectively avoid the failure of the insulation layer caused by water absorption; Fire performance reaches A level, higher safety; And the service life is long, which is more than 3 times that of traditional materials.

4. What maintenance is required during use?
Aerogel spray coatings generally do not require special maintenance during normal use, but the surface of the coating should be checked regularly for damage, shedding or stains. If the problem is found, it should be repaired or cleaned in time to ensure the thermal insulation performance and protective effect of the coating.

5. How to repair the damaged coating?
If the coating is damaged in a small area, the damaged area can be cleaned to remove loose coating and impurities, and then the same aerogel spray material can be used for local repair. For large areas of damage or serious damage, it may be necessary to re-paint the construction.

cation and cooperation with certification bodies, and timely understand the update of certification standards in order to prepare for it in advance.

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