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4M is commercializing the world’s first large-scale carbon fiber plasma oxidation oven.  4M’s technology will enable the production of high performance and low-cost carbon fiber, providing this exploding industry a cost-effective way to increase production to meet the projected 300% increase over the next 10 years.  It will significantly reduce the market growth cost constraints of industrial carbon fiber in existing markets while promoting expansion of carbon fiber use into new applications.  4M’s plasma oxidation technology has been proven to triple production throughput, reduce energy consumption by 75% while yielding a high-performance carbon fiber.
Summary
Plasma Oxidation Advantage
How It Works
Summary
4M Commercialization Focus
Plasma Oxidation Advantage
Acceleration of oxidation rate up to 3X for PAN and 5X for lignin.
Oxidation energy consumption less than 25% of conventional (75% savings).
Final OPF and carbon fiber mechanical property improvements.
The ability to rapidly respond to runaway exothermic conditions.
Up to 3X shorter oven length required – reducing physical footprint in a conversion line.
Unique oxidation oven configurations are possible
Less air flow is required.
How It Works

Through over a decade of research, development and engineering, a technique was developed that utilizes atmospheric pressure plasma to both generate and rapidly deliver highly oxidative chemical species to the tow band to accelerate the precursor stabilization process. The inputs into a plasma oxidation oven are the same as conventional ovens – air and electricity. No other chemicals or gases are required.

The plasma performs multiple functions:

Generation of highly reactive (oxidative) yet short-lived chemical species.

Acceleration of these short lived species to the precursor before they dissociate.

Thermal energy generation in close proximity to the tow band with low thermal inertia.

Active uniform distribution of thermal energy to the tow band.

Contact Us

Ph: 865-444-6789
E: info@4mio.com
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