Aerogel products
Silica aerogel is a highly porous, nanoscaled form of amorphous silica.
It is the most efficient insulating material known to date.
It has a very low thermal conductivity, thanks in particular to very low solid, and gaseous contributions.
ENERSENS has filed international patents on its process and uses.
Why does silica aerogel have a high thermal insulation property?
The thermal conductivity (λ) of a material is a measure of its ability to conduct heat. The lower the λ, the higher the insulation.
- Heat transfer mechanisms in aerogel
- Thermal conductivity
- Solid conductivity
- Infrared radiation
- Gas convection
- Low extinction coefficient
- Reduction of gas convection in mesopores (Knudsen effect)
The high tortuosity and low amount of solid material (5%) greatly reduce solid conductivity.
Silica aerogel composites with embedded fibres: a review on their preparation, properties and applications, Teresa Linhares, Maria T. Pessoa de Amorim and Luisa Durães, J. Mater. Chem. A, 2019,7, 22768-22802
Acoustic
- Strong acoustic dampening in particular for low frequences (around 400 Hz)
- Absorption coefficients of 0.7 to 0.9 at low and high frequencies
Stable
- Our aerogel is mainly composed of amorphous silica, allowing a long-term stability.
- It is dimensionally stable; no shrinkage, no swelling, no settling, not even after many years.
Lightweight
- Very low density material (only 3 to 15 time heavier than air), less than 0.1 g.cm-3
- Composed of 95% of air
Waterproof & breathable
- Waterproof but permeable to water vapor
- No corrosion and condensation issues
- Prevents fungus or mold growth
Fire resistance
- Mineral and non-flammable
- Its minimum ignition temperature is 470°C
- No particles, flaming droplets nor toxic smoke during combustion
Thermal insulation
- The nanoporous structure of silica aerogels makes it the best thermal insulation material available
- Intrinsic thermal conductivity of 0.012 W/(m.K)
SKOGAR® a super insulating product made of silica aerogel and high-performance fibers
Ultra thin and ultra light, Skogar® meets the challenges of electronics and e-mobility.
KWARK®, the insulating thermal additive in silica aerogel
Used as a thermal insulation additive for formulated products – such as paint, coating, finishing coating – Kwark® meets the challenges of building and industry.
