Pyron® Continuous Tow

Product catalog summary

Product Overview: Pyron® Continuous Tow fibers are oxidized/stabilized PAN fibers (OPAN) known for their inherent fire resistance, thermal stability, excellent chemical and solvent resistance, and electrical non-conductivity. They are available in crimped or uncrimped forms and can be processed into yarn, pulp, short fibers, or staple fibers for various applications.

Fiber Properties: The fibers have a minimum density of 1.36 g/cc, a diameter of 1.25 microns, and a Limiting Oxygen Index (LOI) of 40% or more. They are black in color and have a resistivity of 8x10⁸ ohms cm.

Chemical Resistance: Pyron® fibers exhibit good resistance to strong acids and weak bases, excellent resistance to weak acids and organic solvents, but poor resistance to strong bases.

Chemical Composition: The fibers are composed of 62% carbon, 21.5% nitrogen, 12% oxygen, 4.5% hydrogen, with less than 0.1% sodium and trace metals below 0.01%.

Material Specifications: The standard density is 1.37 g/cc with a LOI of 40%+, while high density is 1.40 g/cc with a LOI of 50%+. The tensile strength is 240 MPa (34,800 psi) with a filament count of 300K, available in uncrimped format.

Packaging: Pyron® Continuous Tow is packaged in plastic-lined boxes weighing approximately 185 kg (400 lbs), while crimped tow is available in bales weighing approximately 430 kg (950 lbs).

Certification: Each shipment is accompanied by a Certificate of Conformance, ensuring compliance with Zoltek’s published data.

Safety: Users are advised to obtain and understand the Material Safety Data Sheet (MSDS) before using the product.

Catalog excerpts

Technical Datasheet Oxidized/Stabilized PAN Fiber (OPAN) Pyron® continuous tow fibers are oxidized / stabi- lized PAN fibers (OPAN) that are inherently fire resistant, thermally stable, exhibit excellent resis- tance to chemicals and solvents and are electri- cally nonconductive. Available crimped or uncrimped, Pyron® continuous tow is suitable for stretch breaking into yarn, milling into pulp, chopping into short fibers or crimping & cutting into staple fibers for nonwovens or yarn spinning Zoltek Corporation | 3101 McKelvey Rd. | St. Louis, MO 63044

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Pyron® Continuous Tow Typical Packaging Certification Pyron® Continuous Tow is pleated into plastic lined boxes weighing approximately 185kg (400 lbs). Crimped tow available packaged in bales weighing approximately 430 kg (950 lbs). Pyron® Coninuous Tow is manufactured in accordance with Zoltek’s written and published data. A Certificate of Conformance is provided with each shipment. Safety Obtain, read, and understand the Material Safety Data Sheet (MSDS) before use of this or any other Zoltek product. PYRON® is a registered trademark of Zoltek Corporation Zoltek Corporation | 3101 McKelvey...

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