Product Information
Continuous Tow
PANEX® 35 continuous carbon fiber tow is the premier commercial carbon fiber on the market. It is a 50K filament fiber manufactured from polyacrylonitrile (PAN) precursor, and is available with a range of sizings for optimal processing and compatibility with a variety of resin systems. Zoltek’s quality system focuses on spool-to-spool consistency yielding low coefficients of variation.
| Description | Spool Length | Compatible Resin Matrix | Typical Properties | Data Sheet | |
|---|---|---|---|---|---|
| Strength | Modulus | ||||
| 50K Continuous Carbon Fiber Tow | 1500 M 3000 M | Epoxy, Vinyl Ester, Engineering Thermoplastics | 4137 Mpa (600 Ksi) |
242 Gpa (35 Msi) |
 |
Prepreg
Zoltek’s uni-directional (UD) prepreg tapes are made with PANEX® 35 carbon fiber, and available in areal weights from 150 gsm to over 900 gsm. Our prepreg is ideal for rapidly building part thickness with excellent composite properties, and allows for higher manufacturing throughput at a lower cost. A wide selection of epoxy resin formulations meets a variety of processing and composite property requirements for tack, toughness, flow in cure, surface finish, cure time, cure temperature, and delivered composite strength and modulus. Custom formulations are also available.
| Description | Length | Resin | Typical Properties | Data Sheet | |
|---|---|---|---|---|---|
| Strength | Modulus | ||||
| Unidirectional Prepreg Tapes | 1500 m (4900 ft.) |
Several epoxy resin formulations are available for processing flexibility and to meet the requirements of diverse applications. 28 to 45 percent wt content. | 1904 MPa (276 ksi) |
134 GPa (19.4 Msi) |
|
Chopped Fiber *
PANEX® 35 chopped carbon fibers are commonly compounded with general engineering thermoplastics (e.g., PC, Nylon, etc.) and high-temperature thermoplastic resins (e.g, PEEK, PEI, etc.). The resulting composite offers high strength-to-weight and stiffness-to-weight ratios. Our chopped fibers have a high bulk density value, which allows for cleaner and more consistent flow rates. They also distribute easily during compounding, thereby improving process and product performance. Our chopped fibers are available in a pellet, flake, or stick form.
| Description | Standard Fiber Length* | Typical Resin Matrix | Data Sheet |
|---|---|---|---|
| Chopped Pellet | 6 mm (0.25 in.) |
Polycarbonate, Polyamide, other engineering thermoplastics | |
| PEEK, PPS, PEI, PES, PPA, other high-temp | |
||
| Chopped Stick | 8.3 mm (0.33 in.) |
Miscellaneous Thermoplastics | |
| Chopped Flake | 3, 6, 12 mm (0.125, 0.25, 0.5 in.) |
Epoxy, Polyester, Vinyl Ester | |
| Dispersible Chopped Flake | 3 – 50 mm (0.125 – 2.0 in.) |
N/A | |
* custom lengths available upon request
Milled Fibers
PANEX® 35 milled fibers are specially processed PAN (polyacrylonitrile) based fibers for high-volume applications that require strength and/or electrostatic dissipation. PANEX® 30 high-purity milled fibers are 99+% pure carbon fibers derived from Zoltek's high temperature graphitization process. Zoltek’s in-house milling system ensures product quality and traceability from raw material through finished product.
| Description | Typical Fiber Lengths | Typical Carbon Content | Typical Application | Data Sheet |
|---|---|---|---|---|
| PANEX® 32 | 100-200 Micron (3.9 – 7.9 mils) |
> 95% | High-Volume | |
| PANEX® 35 | 95% | General Purpose | ||
| PANEX® 30 | 99% | Higher Purity Electrical |
Unidirectional Fabrics *
PANEX® 35 Stitch-Bonded Uni-Directional Carbon Fabrics are produced from our PANEX® 35 50K Continuous Tow Carbon Fiber. Unique fiber spreading techniques enable a wide range of fabric weights and constructions for composite part applications. Our fabrics have been specially constructed for enhanced infusibility, and allow for a rapid build-up of part thickness.
| Description | Construction | Area Weight | Roll Widths | Binder | Roll Lengths | Data Sheet |
|---|---|---|---|---|---|---|
| Stitched UD 150 | Unidirectional | 150 g/m2 | 30, 61, 122 cm (12, 24, 48 in) |
Epoxy Compatible | 100m (110 yds) |
|
| Stitched UD 200 | Unidirectional | 200 g/m2 | Epoxy Compatible | |||
| Stitched UD 300 | Unidirectional | 300 g/m2 | Epoxy Compatible | |||
| Stitched UD 500 | Unidirectional | 500 g/m2 | None | 50m (55 yds) |
||
| Stitched UD 600 | Unidirectional | 600 g/m2 | Epoxy Compatible | |||
| Stitched UD 900 With Veil | Unidirectional | 900 g/m2 | 122 cm (48 in) |
None | 30m (33 yds) |
* custom products(areal weights, construction, widths, lengths, etc.) available upon request
Woven Fabrics *
PANEX® 35 Tow Weave Carbon Fabrics are produced from our PANEX® 35 50K Continuous Tow Carbon Fiber. Quick composite part build-up is cost effectively achieved with our cosmetically attractive carbon fiber fabrics. Applications include large composite tooling parts and aesthetically appealing finished composite components.
| Description | Construction | Area Weight | Roll Widths | Binder | Roll Lengths | Data Sheet |
|---|---|---|---|---|---|---|
| PANEX® 35 Woven Fabric | 2/2 Twill Weave | 960 g/m2 (28 oz/yd2) |
127 cm (50 in) |
None | 30m (33 yds) |
|
| Plain Weave | ||||||
| Satin Weave | 1640 g/m2 (48 Oz / yd2) |
127 cm (50 in) |
None | 25 m (27.5 yds) |
* custom products (areal weights, construction, widths, lengths, etc.) available upon request
Felts *
Zoltek’s needlepunched felt is produced from PYRON® oxidized PAN fibers and later carbonized to 95% carbon content in our vacuum furnaces. Current applications include insulation in high temperature furnaces, filtration media in high temperature and/or corrosive environments, and energy storage. The unique properties of our PANEX® 35 carbon felts are optimal for complex thermal, corrosive or conductive applications.
| Description | Construction | Carbon Content | Roll Widths | Typical Thickness | Data Sheet |
|---|---|---|---|---|---|
| Carbonized Felt | Needlepunch | 95% | 94 cm 36 in. | 9 mm (0.4 In.) |
|
* custom products available upon request