Viscose-based Carbon Fiber Felt

Viscose-based carbon fiber felt is made of viscose/rayon staple via needle punching, pre-oxidation and high-temperature carbonization/graphitization. Compared with PAN-based carbon felt, it features ultra-low density, ultra-low thermal conductivity, ultra-high purity and superior ablation resistance, serving as core thermal insulation material for vacuum high-temperature furnaces.

1.Extreme high temperature resistance & excellent heat insulation: stable under 2000-3300℃ in inert atmosphere, low thermal conductivity, energy-saving, stable thermal field with little shedding.

2.Ultra-low impurity content: ash content below 50ppm, low alkali metal, ideal for high-purity production of semiconductors and photovoltaic silicon.

3.Lightweight & flexible: density 0.085-0.11g/cm³, easy cutting, wrapping and shaping for complex furnace linings.

4.Anti-corrosion & anti-thermal scour: resist acid, alkali and high-speed hot airflow, long service life under vacuum.

5.Uniform conductivity & adsorptive capacity: can be activated for gas/liquid filtration.

1.High-temperature thermal insulation for industrial furnaces

Used as lining insulation for monocrystalline silicon furnaces, SiC crystal growth furnaces, vacuum sintering furnaces and metallurgical furnaces to stabilize temperature field and reduce heat loss.

2.Aerospace thermal protection

Ablation-resistant thermal shielding materials for aircraft, rocket engine linings and vacuum thermal test chambers.

3.Electrochemical conductive electrodes

Serving as electrode substrates for flow batteries, electrolytic tanks and supercapacitors with rich porous structure.

4.Environmental adsorption and filtration

Activated felt for purifying acid-base waste gas, organic VOCs and adsorbing heavy metals in industrial wastewater.

5.Anti-static, heating and electromagnetic shielding materials

Flexible heating parts, anti-static gaskets, EMI shielding materials and medical conductive substrates.