Aerogel felt is a kind of flexible thermal insulation felt made by special process, which is mainly composed of nano silica or metal aerogel, carbon fiber, ceramic glass fiber and pre-oxidized fiber felt. It is characterized by low thermal conductivity, high temperature and fire resistance, with a certain tensile and compressive strength, is a new type of insulation material.

1. Introduction of aerogel felt

Aerogel felt is a flexible thermal insulation material which is mainly made of silica aerogel and reinforced fiber such as glass fiber and pre-oxidized fiber by special process.

Aerogel felt has the lowest thermal conductivity of solid insulation material in the temperature range of 400 ° C (thermal conductivity in the high temperature region of 400~1000 ° C is much higher than micro and nano heat insulation series).

Aerogel felt is soft, easy to cut, low density, inorganic flame retardant, overall hydrophobic, environmental protection and so on. It can replace glass fiber products, asbestos insulation felt, silicate fiber products and other traditional flexible insulation materials, which are not environmentally friendly and have poor insulation performance.

2. Physical properties of aerogel felt

Thickness: 1~20mm

Width: 1.2, 1.5 meters

Density: 160 ~ 240kg/m3

Applicable temperature: -200℃~1000℃

Hydrophobic: There are two types of hydrophilic and hydrophobic

Thermal conductivity: 0.015~0.025W/(m·k)

Three, the 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 service life is close to 20 years when used in high temperature pipeline environment.

2, reduce the thickness of the insulation layer

Aerogel felt achieves the same insulation effect, and its thickness is only 3 to 5 times that of traditional materials. The heat loss is small and the space utilization rate is high. And at high temperatures, the effect is more obvious.

3, hydrophobicity and flame retardant

Aerogel felt is relatively hydrophobic and can effectively prevent water from entering pipes and equipment. At the same time, it has B1 to A level fire performance, and the unique three-dimensional network structure of aerogel prevents other thermal insulation materials from sintering deformation and settlement during long-term high temperature use.

4, convenient construction

Aerogel felt is lightweight, easy to cut and sew to adapt to various shapes of pipe and equipment insulation, and requires less time and labor to install.

5, save transportation costs are lower

The small packaging volume and lighter weight can greatly reduce the transportation cost of insulation materials.

4. Application field

Aerogel felt is mainly used for thermal insulation of buildings, industrial pipelines, storage tanks, industrial furnace bodies, power plants, rescue pods, military ship bulkheads, high-speed vehicles, directly buried pipelines, injection molding machines, removable insulation bushings, high temperature steam pipelines for heavy oil exploitation, and transportation, home appliances, steel, non-ferrous metals, glass and other fields.

This paper introduces the materials, physical properties, characteristics and application range of aerogel felt, hoping to help you. For more information about aerogel felt, please pay attention to Uetersen Aerogel manufacturer.