• 0
  • 0

What is Silica Aerogel

If you are looking for high-quality products, please feel free to contact us and send an inquiry, email:

What exactly is Silica Aerogel?

Silica aerogels are kind of porous material. They are produced by replacing liquid components with gas in the form of a gel. The result is a solid having extremely low density and thermal conductivity. Aerogels come with many uses. For instance, an aerogel is an effective thermal conductor.

Silica-based aerogels

The process of manufacturing aerogels typically involves freezing the precursor substance and allowing it form a crystalline. The liquid components then solidify to form a variety of morphologies, based on several factors. After that, pre-formed molecules of the solid precursor are pushed within the pores the growing crystals.

The DLR research will improve the manufacturing process of silcia-based airgels. It is working on improving the chemical composition, drying procedure, and the formation of nanostructures. This process also aims towards making the aerogels resistant to extreme temperatures, which can reach 600deg C. It also aims to improve the handling capability of the materials by incorporating glass fibers or polymeric felts. The primary areas of application for the materials are for furnaces, exhausts, and motors.

The silica-based aerogels are transparent and light, and boast a 95% porosity. They possess exceptional thermal insulation properties. They are frequently employed as thermal insulators, and can be mixed with other ceramic phases to improve them in terms of thermal property.

High porosity

Aerogels with high porosity are porous and made of silica. They have a very large surface area and can act as gas filtersor absorbers, media for desiccation, as well as encapsulation media. They can also be used in the storage and transport of liquids. Their low weight materials makes them particularly useful for systems to deliver drugs. In addition , to their many uses, high porosity silica aerogels are also used in the production of small high-capacity electrochemical supercapacitors.

One of most notable features of high porosity silica aerogels is their superior mechanical strength. The majority of empty shells are fragile and therefore it is vital to maximize the bonding of the skeleton , to enhance strength along with thermal insulation. The fiber content can strengthen the skeleton, enhancing the strength of the material as well as how it performs in thermal isolation. In one study the sample of this material showed a 143% increase in Young's modulus. The structure of the internal pores was assessed using a scanning electron microscope (SEM) and it was confirmed that the fiber content binds well with the skeleton.

High surface active sites

Silica aerogels are hydrophobic in nature and exhibit high active sites on the surface. This property could make them an anticorrosive agent. They also show excellent thermal stability and transparent. Their porous volumes and surface areas depend on pH. This research shows that silica aerogels with 5-pH have the highest quality thermal properties and surface.

In the beginning, silica-based aerogels were employed as host matrices used for medicinal and pharmaceutical compounds. During the 1960s, scientists began investigating silica Aerogels which could be used as host matrixes. Two methods were employed in order to make silica based aerogels. dissolving cellulose in a suitable solvent, or dissolving different forms of nanocellulose inside a water suspension. These aerogels were then subjected to a multi-step exchange of solvents. In addition, significant shrinkage was observed as the aerogels were prepared.

Properties of thermal insulation

Silica aerogel is a marvellous variety of thermal insulation properties. It is just beginning to gain traction in the market. For instance, it is being investigated for window glass with transparency, which are some of the most vulnerable to thermal stress in building. Walls, that cover a vast area of surface, generally have a lower loss of heat than windows as well, and silica aerogel is a good choice to assist in reducing the stress.

A preliminary study of the thermal insulation properties of silica aerogels was performed in a combustor that swirls to simulate a typical combustion environment. Silica aerogel blankets were installed inside the combustor, and provided with cooling air for three times.


The brittleness of aerogels made of silica is dependent on the size of their pores and the volume. The AC values decrease as the macroporous volume. In addition the pore size distribution (pore shape distribution curve) decreases in the direction of the TMOS content.

The density , aging and conditions of silica aerogels influence their physical properties. Silica aerogels of low density have a compressibility in comparison to high-density aerogels, which are viscoelastic. They also have a high brittleness.

The ultraflexibility in silica aerogels can be enhanced by a number of methods. A common approach involves increasing the stress applied. This can increase the length of the crack which results in increased KI.

Suppl Ir from China comprised of silica aerogel

TRUNNANO is a reputable world-wide chemical material supplier and manufacturer with more than 12 years of expertise in the manufacturing of top-quality chemical products as well as Nanomaterials. The company has developed a variety consisting of powder materials. The service can be customized. If you're looking for silica aerogel, please contact us. or click on one of the products to send an enquiry in writing:

Inquiry us

  • tags

Metal Alloy 8.92g/Cm3 High Purity Polished Copper Plate

High Purity Nano Hafnium Hf powder CAS 7440-58-6, 99%

Metal Alloy 18g/cm3 High Density Tungsten Alloy Ball

Metal Alloy 18.5g/cm3 Polished Tungsten Heavy Alloy Plate

High Purity Molybdenum Boride MoB2 Powder CAS 12006-99-4, 99%

Metal Alloy High Density Tungsten Alloy Rod Grind Surface Tungsten Alloy Bar

High Purity Germanium Sulfide GeS2 Powder CAS 12025-34-2, 99.99%

High Purity Chromium Diboride CrB2 Powder CAS 12007-16-8, 99%

High Purity Titanium Sulfide TiS2 Powder CAS 2039-13-3, 99.99%

High Purity Calcium Nitride Ca3N2 Powder CAS 12013-82-0, 99.5%

High Purity Nano Ag Silver powder cas 7440-22-4, 99%

High Purity Tungsten Silicide WSi2 Powder CAS 12039-88-2, 99%

High Purity 3D Printing Powder 15-5 Stainless Steel Powder

High Purity Zirconium Nitride ZrN Powder CAS 25658-42-8, 99.5%

Supply Magnesium Granules Mg Granules 99.95%

High Purity Colloidal Silver Nano Silver Solution CAS 7440-22-4

High Purity Silicon Sulfide SiS2 Powder CAS 13759-10-9, 99.99%

High Purity 3D Printing 304 Stainless Steel Powder

Chromium Sulfide Cr2S3 Powder CAS 12018-22-3, 99.99%

High Purity Tungsten Boride WB2 Powder CAS 12007-09-9, 99%

Our Latest Products

Metal Alloy 8.92g/Cm3 High Purity Polished Copper Plate

Copper products exhibit good electrical conductivity as well as thermal conductivity. They are also ductile, resistant to corrosion, and have a high wear resistance. They are widely used by the energy, petrochemical, electricity and electronics indus…

High Purity Nano Hafnium Hf powder CAS 7440-58-6, 99%

Hafnium Powder is a metal made from hafnium. The most common method to prepare hafnium from sponge hafnium involves hydrogenation and deshydrogenation. Purity>99%Particle Size : 5-10 Micron Hafnium Nanopowder: Hafnium Hafnium on the periodic table :…

Metal Alloy 18g/cm3 High Density Tungsten Alloy Ball

W-Ni - Cu alloy is used in the production of Tungsten alloy balls. It is widely utilized in the fields of aviation, oil drilling, and aerospace. High Density Tungsten Alloy Metal Ball, 18g/cm3 Diameter: 1.0mm-150.0mm Surface: sintered or for…