Viscose (rayon) based carbon fibers
Rayon based carbon fibers are very special.
Its precursor is viscose fiber versus acrylic fiber in PAN-based CFs (which are commonly known as 'carbon' and nowadays are used mostly for structural composites including our carbon tubing).
Rayon based carbon fibers were initially made in 1890s sure in the USA for the heating filament to be used inside incandescent lamp.
Now this type of carbon fiber has many special applications including:
- carbon-carbon composites manufacturing (both ways via phenolic resin carbonization and via chemical vapour deposition process)
- high temperature (3000 C / 5500 F) heat insulation for vacuum funaces
- electrical heating devices incl. wearable clothes and deiceners
- gas and liquid sorption filter material (for activated carbon fibers)
- medical wound / burn dressing textile blankets
- medical oral enterosorbents
- protectors against metal corrosion
- microbial fuel cells (MFC)
- many, many other special applications.
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