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 Plasma Oxidation is a proven technology. Compared to conventional oxidation, plasma oxidation:
 Makes a better product ...
 Plasma generates a highly reactive
gas from air that accelerates the
oxidation and stabilization process.
 This drastic...
 Plasma generates a highly reactive gas from air that accelerates the oxidation and
stabilization process.
 This drastic...
Client Oxidation Rate
Increase
Carbon Fiber
Properties
Precursor Type
Client 1 2.7X Comparable Commodity-PAN
Client 2 3X C...
Only Client 1’s fiber property results can be shared publically. The remainder are
under nondisclosure agreements.
This ...
*Estimated using scaling law. Typical consumption is 17-26 kWh/kg OPF.
Oxidation
Rate Increase
Density (g/cc) Unit Energy ...
*Estimated using scaling law. Typical consumption is 17-26 kWh/kg OPF.
Further information cannot be shared.
Oxidation
Rat...
Oven Shell, Airflow, Conventional Heat
Inside
Inside
Plasma Equipment and Control System
Inside
Inside
Inside
Inside
Inside
Inside
Oven Shell, Airflow, Conventional Heat
Plasma Equipment and Control System
Plasma Oxidation Oven
Conventional Oven
Significant Reduction in Footprint
Top View
Special thanks to Izumi International for additional equipment renderings.
Plasma Oxidation Overview - Carbon Fiber
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Plasma Oxidation Overview - Carbon Fiber

Plasma Oxidation is a proven technology. Compared to conventional oxidation, plasma oxidation:
Makes a better product through more reactive plasma chemistry.
Is 3 times as fast.
Uses 75% less energy per pound of fiber.
Takes up significantly less space (1/3 size).
Reduces carbon fiber manufacturing cost by at least 20%.

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Plasma Oxidation Overview - Carbon Fiber

  1. 1.  Plasma Oxidation is a proven technology. Compared to conventional oxidation, plasma oxidation:  Makes a better product through more reactive plasma chemistry  Is 3 times as fast  Uses 75% less energy per pound of fiber  Takes up significantly less space (1/3 size)  Reduces carbon fiber manufacturing cost by at least 20% 2016 – 1 aMT Plasma Oxidation Oven 2
  2. 2.  Plasma generates a highly reactive gas from air that accelerates the oxidation and stabilization process.  This drastically lowers oxidation time and energy requirement.  Lower oxidation times provides many advantages.
  3. 3.  Plasma generates a highly reactive gas from air that accelerates the oxidation and stabilization process.  This drastically lowers oxidation time and energy requirement.  Faster oxidation time provides many advantages (next slide). Plasma Oxidation How Does It Work? Click here for a video demonstration with one client’s large tow: https://youtu.be/McJy844rsqg
  4. 4. Client Oxidation Rate Increase Carbon Fiber Properties Precursor Type Client 1 2.7X Comparable Commodity-PAN Client 2 3X Comparable Commodity-PAN Client 3 5X Comparable Lignin Client 4* 1X Better Aerospace-PAN Client 5* 2.5X OPF-Comparable Textile-PAN Client 6* 1X Comparable Aerospace-PAN Client 7 Scheduling trials now Commodity-PAN *Preliminary trials only – more work required to determine optimal results
  5. 5. Only Client 1’s fiber property results can be shared publically. The remainder are under nondisclosure agreements. This work was with BlueStar 24k and 48k precursor. This work was performed during the development stage and does not reflect optimal performance of the technology. Tow configurations:  2 x 24k  3 x 24k  4 x 24k  4 x 48k A recent independent study1 showed an increase of 30% in carbon fiber tensile strength using plasma over conventional oxidation. 1Lee, et al. Efficient preparation of carbon fibers using plasma assisted stabilization. Carbon, 55, 361 (2013).
  6. 6. *Estimated using scaling law. Typical consumption is 17-26 kWh/kg OPF. Oxidation Rate Increase Density (g/cc) Unit Energy Consumption (kWh/kg OPF) Precursor 1 aMT 175 aMT* 1500 aMT* 2.7X 1.36 44.8 6.1 2.7 2 x 24k 2.7X 1.37 33.5 4.6 2.0 3 x 24k 2.7X 1.37 27.0 3.7 1.6 4 x 24k
  7. 7. *Estimated using scaling law. Typical consumption is 17-26 kWh/kg OPF. Further information cannot be shared. Oxidation Rate Increase Density (g/cc) Unit Energy Consumption (kWh/kg OPF) Precursor 1 t/y 175 t/y* 1500 t/y* 2.3X 1.44 10.7 1.5 0.6 ~300k 3X 1.36 15.2 2.1 0.9 ~150k 3X 1.38 12.3 1.7 0.7 ~300k
  8. 8. Oven Shell, Airflow, Conventional Heat Inside Inside Plasma Equipment and Control System
  9. 9. Inside Inside Inside Inside Inside Inside Oven Shell, Airflow, Conventional Heat Plasma Equipment and Control System
  10. 10. Plasma Oxidation Oven Conventional Oven Significant Reduction in Footprint Top View
  11. 11. Special thanks to Izumi International for additional equipment renderings.

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