Pre-oxidized fiber felt, also known as pre-oxidized PAN (polyacrylonitrile) fiber felt, is a type of non-woven textile material made from pre-oxidized PAN fibers. PAN fibers are high-strength, high-modulus synthetic fibers that are commonly used in the manufacture of carbon fiber.
To create pre-oxidized fiber felt, the PAN fibers are first pre-oxidized, which involves heating the fibers in an oxygen-rich environment to convert them into a heat-stable state. The pre-oxidized fibers are then carded and needle-punched to create a non-woven felt fabric.
Pre-oxidized fiber felt has a number of desirable properties, including high temperature resistance, good thermal stability, and excellent chemical resistance. It is often used in high-temperature applications such as insulation in furnaces, boilers, and other industrial equipment. It can also be used as a filter medium in air and liquid filtration systems due to its high porosity and filtration efficiency.
Technical data:
| Property |
Unit |
Carbon fiber felt |
Graphite fiber felt |
| Code Number |
-- |
PFF-900 |
PFF-2000 |
| Working Temperature |
℃ |
900±50 |
2200 |
| Thermal conductivity (350℃) |
W/m.k |
0.06~0.09 |
0.08~0.30 |
| Thermal conductivity (1550℃) |
W/m.k |
0.22~0.30 |
0.50~0.65 |
| Carbon Content |
% |
≥85 |
≥99.85 |
| Ash Content |
ppm |
≥3000 |
500~1500 |
| Bulk Density |
g/cm3 |
0.10~0.12 |
0.08~0.10 |
| Width |
cm |
≤160 |
≤140 |
| Thickness |
mm |
3, 5, 8, 10±0.5 |
3, 5, 8, 10±0.5 |
Pre-oxidized fiber felt, also known as carbon fiber felt, has several advantages:
- High temperature resistance: Pre-oxidized fiber felt can withstand high temperatures up to 2000°C, which is much higher than most other materials.
- Excellent thermal insulation: Due to its low thermal conductivity, pre-oxidized fiber felt is an excellent thermal insulator. It can be used in high-temperature applications to prevent heat loss.
- Chemical resistance: Pre-oxidized fiber felt is resistant to most chemicals, including acids, bases, and organic solvents. This makes it suitable for use in harsh chemical environments.
- Lightweight: Pre-oxidized fiber felt is very lightweight, making it easy to handle and install. It is also ideal for use in applications where weight is a critical factor.
- High strength and stiffness: Pre-oxidized fiber felt has high strength and stiffness, making it suitable for use in structural applications. It can be used to reinforce composites or as a standalone material.
- Corrosion resistance: Pre-oxidized fiber felt is highly resistant to corrosion, making it suitable for use in corrosive environments.
- Electrically conductive: Pre-oxidized fiber felt is electrically conductive, making it suitable for use in applications where electrical conductivity is required.
Overall, pre-oxidized fiber felt offers a unique combination of high-temperature resistance, thermal insulation, chemical resistance, lightweight, high strength and stiffness, corrosion resistance, and electrical conductivity, making it a versatile material for a wide range of applications.
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Industrial Pre-Oxidized Fiber Felt Rolls High Temperature Resistant Images
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