Supply Nanoparticle Silica Aerogel SiO2 Aerogel
About Nanoparticle Silica Aerogel SiO2 Aerogel:
Aerogel refers to a lightweight nano solid material with a nanoporous network structure and a network skeleton filled with a large amount of gaseous dispersion medium. Thanks to the particularity of its structure, aerogel materials have a wide range of uses. Among them, silica aerogel materials are based on the exploration results of the application of SiO2 based on aerogel technology and intersect with other aerogel materials. The gel has rich sources of raw materials, a simple process and good controllability; in terms of performance, it has both high transparency, low thermal conductivity and high specific surface area.
Silica aerogel has a high surface area, high porosity and lightweight, but with mechanical rigidity, it will undoubtedly find a wide range of applications from the pharmaceutical to the semiconductor industry. Silica aerogels can also be chemically modified to suit specific applications. Silica aerogel materials have a uniform nanoparticle skeleton structure and uniform size and pore size distribution, which makes them have extremely low density and thermal conductivity, so the dioxide Silicon has an excellent performance in thermal insulation protection. The extremely low density increases the solid heat conduction path and effectively reduces the solid heat conduction; and the addition of sunscreen can greatly increase the specific extinction coefficient and reduce the radiant heat conduction so that it has an extremely low thermal conductivity.
Silica aerogel is an amorphous material. The skeleton density is about 2200 kg/m3, but due to the very high porosity (the pore volume exceeds 90% of the material volume), the material is very light (bulk density is in the range of 50-200 kg/m3). Total volume). The pore size is usually in the range of 5-100 nm. The total density of aerogels currently used in construction applications is 70-150 kg/m 3. The acoustic properties are very interesting: the sound propagation through the aerogel depends on the nature and pressure of the interstitial gas, the density of the aerogel, and even the texture (Forest et al., 1998), but the sound velocity in silica aerogel is low The velocity in the air (reduced to about 40m/s by monolithic aerogel, and to about 100m/s by particulate aerogel).
Silica aerogel is the most excellent thermal insulation material and one of the lightest materials. It has always been considered as a potential candidate for super thermal insulation systems in future aviation, and saving weight and space is essential. Feel free to send an inquiry to get the latest price if you would like to buy Nanoparticle Silica Aerogel SiO2 Aerogel in bulk.
How is Nanoparticle Silica Aerogel SiO2 Aerogel produced?
The main process of preparing silica aerogel includes three parts:
Sol-gelation process: the sol is obtained through the precursor reaction of the silicon source, and then a catalyst is added to cause pulverization and condensation to obtain a wet gel.
Aging of gel: The wet gel is allowed to stand foraging in the mother liquor to improve its mechanical strength and stability
Drying process: The liquid dispersion medium in the gel must dry the gas from the holes to form a silica aerogel.
More durable aerogels, with higher strength and stiffness, can be obtained by a suitable selection of silane precursors, and they can be combined with different organic polymers or different optical fiber networks to build inorganic silica on the internet. Recent studies have shown that adding a flexible organic polymer to the hydroxyl groups on the surface of silica gel will be an effective mechanical reinforcement method for silica aerogels. If appropriate functional groups are introduced into the surface of silica aerogel and then copolymerized with appropriate organic monomers, a more versatile polymer enhancement method can be easily realized. Mechanically reinforced silica aerogel has a very open texture and can be used as an excellent thermal insulation material for various industrial and aerospace applications.
Technical Parameter of Nanoparticle Silica Aerogel SiO2 Aerogel:
|Product Name||Specific Surface Area||Bulk Density||Particle Size||Porosity %||Aperture||Color|
|Silica Aerogel||600-800 m2/g||40-60 kg/m3||15-50nm||90-95||20-50nm||White|
Application of Nanoparticle Silica Aerogel SiO2 Aerogel:
Silica aerogel has aroused great interest in science and technology due to its low bulk density (up to 95% of its volume is air), hydrophobicity, low thermal conductivity, high surface area and optical transparency, and it has many applications.
Silica aerogel is a light and highly porous material with a three-dimensional network of silica particles, which can be obtained by extracting the silica gel liquid phase under supercritical conditions. Due to their outstanding characteristics, such as extremely low thermal conductivity, low density, high porosity and high specific surface area, they are used in aviation/aerospace and terrestrial thermal insulation systems, environmental cleaning and protection, heat storage devices, transparent window systems, Thickener in paint, etc.
More durable aerogels, with higher strength and rigidity, can be obtained by appropriate selection of silane precursors, and they can be combined with different organic polymers or different optical fiber networks to construct an inorganic silica network. Recent studies have shown that adding flexible organic polymers to the hydroxyl groups on the surface of silica gel will be an effective mechanical reinforcement method for silica aerogels. If appropriate functional groups are introduced into the surface of silica aerogel and then copolymerized with appropriate organic monomers, a more versatile method of polymer reinforcement can be easily realized. Mechanically reinforced silica aerogel has a very open texture and can be used as an excellent thermal insulation material for different industrial and aerospace applications.
Silica aerogel is a typical thermal insulation material, usually used to improve the thermal performance of onshore and offshore industrial infrastructure and buildings.
Silica aerogel can be used in imaging equipment, optics and light guides. Materials used for filtration due to high surface area and porosity can be used to remove heavy metals. Thickener in certain paints and cosmetics. As an integral part of the energy absorber.
Aerogels also have many uses in space exploration. It is used in Russia's Mir space station and the US Mars Pathfinder probe. Aerogel is also used as a detector for the Cherenkov effect in particle physics experiments. In the Belle experimental detector at the B Meson plant of the High Energy Accelerator Research Institute, a particle discriminator named Airgel Cherenkov Counter (ACC) is its latest application. The aerogel used in the detector has lower refractive index characteristics between liquid and gas and has higher light transmittance and solid-state characteristics, which is better than traditional methods using cryogenic liquid or high-pressure air. At the same time, its lightweight is also one of its advantages.
Storage Condition of Nanoparticle Silica Aerogel SiO2 Aerogel:
1. Suitable for manufacturing water-based aerogel thermal insulation coatings and water-based aerogel pastes.
2. Thermal insulation coating polyester chip and functional polyester film.
3. Filler for thermal insulation foam sheet.
4. Purification and adsorption of functional fillers.
5. The nano-oil displacing agent "strongly hates water and is strongly oleophilic". It is repelled by water and compatible with oil.
6. Reduce the density of composite materials, and improve the thermal insulation performance, fire resistance performance and impact resistance performance of composite materials.
Packing & Shipping of Nanoparticle Silica Aerogel SiO2 Aerogel:
We have many different kinds of packing which depends on the silica SiO2 aerogel quantity.
Silica Aerogel SiO2 Aerogel packing: 1kg/ bag, 10kg/ bag, 20kg/ barrel or as your request.
Silica Aerogel SiO2 Aerogel shipping: could be shipped out by express , by air, by air as soon as possible once payment receipt.
Silica Aerogel SiO2 Properties
|Other Names||Silica Aerogel, SiO2 Aerogel, Aerogel.|
|Melting Point||1200 °C|
|Solubility in water||N/A|
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Silica Aerogel SiO2 Health & Safety Information