Aerogel felt is flexible thermal insulation felt made of nano-silica or metal aerogel as the main material, combined with carbon fiber or ceramic glass fiber wool or pre-oxidized fiber felt through a special process. It is characterized by low thermal conductivity, certain tensile and compressive strength, and is a new type of pipeline insulation material.
Introduction of Aerogel Felt
Aerogel felt is a flexible thermal insulation material synthesized by a special process with silica aerogel as the main material and compounded with reinforcing fibers, such as glass fibers and pre-oxidized fibers.
Aerogel felt has the lowest thermal conductivity of solid thermal insulation materials in the 400℃ temperature range (the thermal conductivity of the 400-1000℃ high-temperature region is much higher than that of the micro-nano thermal insulation series).
Aerogel felt has the characteristics of softness, easy cutting, low density, inorganic fire resistance, overall hydrophobicity, and environmental protection. It can replace glass fiber products, asbestos insulation felt, silicate fiber products, and other traditional flexibility that are not environmentally friendly and have poor thermal insulation performance. Insulation Materials.
Aerogel felt is mainly used for industrial pipelines, storage tanks, industrial furnace bodies, power plants, rescue cabins, warship bulkheads, motor cars, directly buried pipelines, injection molding machines, detachable insulation sleeves, high-temperature steam pipelines for heavy oil mining, and transportation, Household appliances, steel, non-ferrous metals, glass and other fields of thermal insulation.
Physical properties of aerogel felt
Thickness: 1~20mm
Width: about 1.5 meters
Density: 160～240kg/m³
Applicable temperature: -200℃~1000℃
Hydrophobicity: There are two types: hydrophilic and hydrophobic
Thermal conductivity: 0.02~0.1W/(m·k)
Advantages of aerogel felt
1. Excellent heat insulation effect
The thermal insulation effect of aerogel felt is 2-5 times that of traditional thermal insulation materials, and the theoretical high-temperature pipeline service life determined by the Arrhenius experiment is close to 20 years.
2. Reduce the thickness of the insulation layer
Aerogel felt achieves the same thermal insulation effect, and its thickness is only a fraction of that of traditional materials. After heat preservation, the heat loss is small and the space utilization rate is high. And at high temperatures, the above performance advantages are more obvious.
3. Hydrophobicity and fire resistance
Aerogel felt is relatively hydrophobic, which can effectively prevent water from entering the pipeline and equipment. At the same time, it has Class B1 to Class A fire resistance, and the unique three-dimensional network structure of aerogel prevents other thermal insulation materials from sintering deformation and sedimentation during long-term high-temperature use.
4. Convenient construction
Aerogel felt is light in weight, easy to cut and sew to adapt to various shapes of pipes and equipment for heat preservation, and it requires less time and labor for installation.
5. Save transportation costs
Smaller package volumes and lighter weight can greatly reduce the transportation cost of insulation materials.
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