ZOLTEK Corporation PX35

ZOLTEK PX35

In the world of materials, ZOLTEK PX35 has emerged as the industrial carbon fiber –one that is both affordable and delivers a strength to weight performance equal to or better than many “aerospace’ grades. It is made from our abundant textile-based precursor and manufactured in a proprietary high-throughput process which results in affordable fiber without sacrificing strength or stiffness.

ZOLTEK PX35 is the low-cost commercial carbon fiber that has revolutionized the carbon fiber industry and paved the way for carbon fiber to break into a variety of new applications. Our sustainable pricing structure is independent of the volatile aerospace industry, and is designed to compete with other primary building materials.

 

 

Spool-to-Spool Consistency — By vertically integrating the process from precursor manufacturing to carbonization and maintaining ISO 9001:2008 ad AS9100 certifications, ZOLTEK PX35 continues to exhibit superior levels of consistency from spool to spool for critical properties and characteristics.

SIUS
Tensile Strength4137 MPa600 ksi
Tensile Modulus242 GPa35 msi
Electrical Resistivity0.00155 ohm-cm0.00061 ohm-in
Density1.81 g/cc0.065 lb/in3
Fiber Diameter7.2 microns0.283 mils
Carbon Content95%
Yield267 m/kg397 ft/lb
Spool Weight5.5 kg, 11 kg12 lb, 24 lb
Spool Length1500 m, 3000 m1640 yd, 3280 yd

DNV-GL has granted approval to Zoltek PX35-1 Multi-Compatible Sizing Tow and Uni-Directional Fabrics, as well as, PX35-7 VE Sizing for Vinyl Ester Compatible Tow an Uni-Directional Fabrics for use in wind energy and marine applications.

ZOLTEK PX35 Chopped Fiber

Chopped carbon fiber is a widely preferred material used in injection and compression molding applications. The resulting product or components are remarkably durable, corrosion-resistant, and incomparably rigid. Examples include machine parts and gears susceptible to long runs with minimal wear and tear. Designed for specific applications requiring cleaner and more consistent flow rates, ZOLTEK’s signature line of chopped carbon fiber materials are produced to have a high bulk density value. Often compounded with general engineering thermoplastics (e.g., PC, Nylon, etc.) and high-temperature thermoplastic resins (e.g, PEEK, PEI, etc.), the resulting composite offers an industry-leading strength to weight ratio ideal for a variety of applications requiring a stronger and more rigid carbon fiber material. In addition, ZOLTEK’s line of chopped carbon fibers distribute easily during compounding and improve the process and product performance as a result. ZOLTEK PX35 Chopped Fibers are versatile and readily available in a pellet, flake, or stick form. Learn more about our collection of chopped fiber products below.

ZOLTEK’s newly-developed Type-95 chop fiber format is characterized by a series of industry-leading benefits that make it an ideal solution for a variety of unique applications. Its high bulk density values allow for cleaner and more consistent flow rates. This product maintains its integrity from the package, into, and through the hopper. It distributes easily during compounding, thus improving overall process and product performance.

ZOLTEK’s Type-95 chopped fiber also has excellent mechanical and electrical properties including high strength and modulus, low density, electrical conductivity, dimensional stability, low thermal expansion, and excellent friction/wear properties.

Recommended Use: Polyamides
Applications: RFI/EMI shielding of electronic devices, Wear-resistance of structural/mechanical parts, Weight reduction and dimensional stability in automotive components

Material OverviewSIUS
Sizing Content2.75% by weight2.75% by weight
Moisture Content0.20% maximum0.20% maximum
Unpacked Bulk Density (minimum)350 g/L21.85 lb/ft3
Fiber Length (nominal)6 mm0.25 in
Typical PropertiesNylon(PA66) SINylon(PA66) USNylon(PA6) SINylon(PA6) US
Carbon Fiber Loading30%30%30%30%
Tensile Strength274 MPa39.74 ksi261 MPa37.85 ksi
Tensile Elongation at Break2.0%2.0%1.9%1.9%
Flexural Strength372 MPa53.95 ksi372 MPa53.95 ksi
Flexural Modulus19.6 GPa2.89 msi20 GPa2.96 msi
Charpy Impact Strength (V-Notch)8.0 kJ/m23.80 ft-lb/in29.0 kJ/m24.28 ft-lb/in2

ZOLTEK’s Type-83 chop fiber format is characterized by a series of industry-leading benefits that make it an ideal solution for a variety of unique applications. Its high bulk density values allow for cleaner and more consistent flow rates. This product’s compact pellet form maintains its integrity from the package, into, and through the hopper. Additionally, ZOLTEK’s Type-83 chop fiber distributes easily during compounding, thus improving overall process and product performance.

ZOLTEK’s Type-83 chopped fiber also has excellent mechanical and electrical properties including high strength and modulus, low density, electrical conductivity, dimensional stability, low thermal expansion, and excellent friction/wear properties.

Recommended Use: High-Temperature Thermoplastics (HTTP): PEEK, PEI, PPA, PAI, PES, PSU
Applications: High operating temperature environments where excellent chemicals resistance, electrical properties, heat aging, dimensional capability, and mechanical properties are required.

Material OverviewSIUS
Sizing Content1.5±0.5% by weight1.5±0.5% by weight
Moisture Content0.20% maximum0.20% maximum
Unpacked Bulk Density (minimum)350 g/L22 lb/ft3
Fiber Length (nominal)6 mm0.25 in
Typical PropertiesPEIPEEK
SIUSSIUSMethod
Carbon Fiber Loading40%40%40%40%-
Tensile Strength190 MPa27 ksi228 MPa33 ksiASTM D638
Tensile Modulus26 GPa3.7 msi31 GPa4.4 msiASTM D638
Elongation1.5%1.5%1.4%1.4%ASTM D638
Flexural Strength317 MPa46 ksi360 MPa53 ksiASTM D790
Flexural Modulus23 GPa3.4 msi28 GPa4.1 msiASTM D790
Izod Impact - Notched64 J/m1.2 ft-lb/in60 J/m12.1 ft-lb/inASTM D256
Izod Impact - Unnotched603 J/m11.3 ft-lb/in700 J/m113 ft-lb/inASTM D256

ZOLTEK’s Type-65 format is characterized by a series of industry-leading benefits that make it an ideal solution for a variety of unique applications. Its high bulk density values allow for cleaner and more consistent flow rates. This product maintains its integrity from the package, into, and through the hopper. Plus, ZOLTEK’s Type-65 chopped pellet distributes easily during compounding, thus improving overall process and product performance.

ZOLTEK’s Type-65 chopped fiber also has excellent mechanical and electrical properties including high strength and modulus, low density, electrical conductivity, dimensional stability, low thermal expansion, and excellent friction/wear properties.

Recommended Use: Engineering Thermoplastics (ETP): PC, PA, POM, PBT/PET, ABS
Applications: RFI/EMI shielding of electronic devices, Wear-resistance of structural/mechanical parts, Weight reduction and dimensional stability in automotive components

Material OverviewSIUS
Sizing Content2.75% by weight2.75% by weight
Moisture Content0.20% maximum0.20% maximum
Unpacked Bulk Density (minimum)425 g/L26.5 lb/ft3
Fiber Length (nominal)6 mm0.25 in
Typical PropertiesPolycarbonate
SIUSSIUSMethod
Carbon Fiber Loading10%10%30%30%-
Tensile Strength150 MPa18 ksi165 MPa24 ksiASTM D638
Tensile Modulus15 GPa2.2 msi17 GPa2.5 msiASTM D638
Elongation3.3%3.3%2.3%2.3%ASTM D638
Flexural Strength200 MPa29 ksi259 MPa37.5 ksiASTM D790
Flexural Modulus11 GPa1.6 msi16 GPa2.3 msiASTM D790
Izod Impact - Notched100 J/m1.9 ft-lb/in112 J/m2.1 ft-lb/inASTM D256
Izod Impact - Unnotched800 J/m15 ft-lb/in838 J/m15.7 ft-lb/inASTM D 256

ZOLTEK’s Type-52 format is characterized by a series of industry-leading benefits that make it an ideal solution for a variety of unique applications.

  • High strength and modulus
  • Low density
  • Electrical conductivity
  • Dimensional stability
  • Low thermal expansion
  • Excellent friction/wear properties

Recommended Use: Engineering Thermoplastics (ETP): Polyolefins, such as PE and PP
Applications: RFI/EMI shielding of electronic devices, Wear-resistance of structural/mechanical parts, Weight reduction and dimensional stability in automotive components

Material OverviewSIUS
Sizing Content1.00% by weight1.00% by weight
Moisture Content0.20% maximum0.20% maximum
Unpacked Bulk Density (minimum)300 g/L18.7 lb/ft3
Fiber Length (nominal)6 mm0.25 in
Typical Properties
SIUSMethod
Carbon Fiber Loading30%30%-
Tensile Strength129 MPa18.7 ksiASTM D638
Tensile Modulus13.6 GPa1.96 msiASTM D638
Elongation3%3%ASTM D638
Flexural Strength174 MPa25.2 ksiASTM D790
Flexural Modulus15 GPa2.18 msiASTM D790
Izod Impact - Notched67 J/m1.14 ft-lb/inASTM D256
Izod Impact - Unnotched499 J/m8.45 ft-lb/inASTM D256

ZOLTEK’s PX35 Type-48 fibers provide excellent mechanical and electrical properties for reinforcement in thermoplastic molding compounds requiring high strength and modulus, low density, electrical conductivity, dimensional stability, low thermal expansion and excellent friction/wear properties.

Recommended Use: PBT/PET, PA (nylon)
Applications: Injection molding of articles for use as components in applications requiring static dissipation and/or EMI shielding. Such articles include electronic devices, dust handling equipment, and notebook computer enclosures.

Material OverviewSIUS
Sizing ChemistryPolyesterPolyester
Sizing Content7.5% by weight7.5% by weight
Moisture Content0.30% maximum0.30% maximum
Compression Ratio0.50 minimum0.50 minimum
Unpacked Bulk Density (minimum)200 g/L12.5 lb/ft3
Fiber Length (nominal)8 mm0.33 in
Typical PropertiesNylon (PA66)mPPO
SIUSSIUSMethod
Carbon Fiber Loading30%30%10%10%-
Tensile Strength240 MPa35 ksi90 MPa13 ksiASTM D 638
Tensile Modulus21 GPa3.0 msi15 GPa2.1 msiASTM D638
Elongation1.90%1.90%1.20%1.20%ASTM D640
Flexural Strength350 MPa51 ksi150 MPa21 ksiASTM D790
Flexural Modulus17 GPa2.5 msi10 GPa1.5 msiASTM D790
Izod Impact - Notched80 J/m1.5 ft-lb/in74 J/m1.4 ft-lb/inASTM D256
Izod Impact - Unnotched680 J/m13 ft-lb/in280 J/m5.2 ft-lb/inASTM D4812

ZOLTEK’s Type-45 format is characterized by a series of industry-leading benefits that make it an ideal solution for a variety of unique applications. Its high bulk density values allow for cleaner and more consistent flow rates. This product maintains its integrity from the package, into, and through the hopper. Plus, ZOLTEK’s Type-45 chopped pellet distributes easily during compounding, thus improving overall process and product performance.

ZOLTEK’s Type-45 chopped fiber also has excellent mechanical and electrical properties including high strength and modulus, low density, electrical conductivity, dimensional stability, low thermal expansion, and excellent friction/wear properties.

Recommended Use: Engineering Thermoplastics (ETP): PC, PA, POM, PBT/ PET
Applications: RFI/EMI shielding of electronic devices, Wear-resistance of structural/mechanical parts, Weight reduction and dimensional stability in automotive components

Material OverviewSIUS
Sizing Content2.75% by weight2.75% by weight
Moisture Content0.20% maximum0.20% maximum
Unpacked Bulk Density (minimum)425 g/L26.5 lb/ft3
Fiber Length (nominal)6 mm0.25 in

A low-cost alternative in thermoplastic applications, ZOLTEK’ PX35 Flake Type chopped fibers provide ready impregnation of thermoset resins, with the capability to mold complex shapes. In a variety of application a small portion of the matrix-specific product can be replaced with chopped flake carbon fibers resulting in negligible impact to composite properties at lower costs. The resultant carbon fiber/ resin matrix composites offer an industry-leading high strength-to-weight and stiffness-to weight ratios.

Recommended Use: Thermoset resins: Epoxy, Vinyl Ester, Unsaturated Polyester, and Phenolic.
Applications: Automotive, Aerospace, Chemical Industry, Construction, Military, Sporting Goods

Material OverviewSIUS
Sizing Content1.5% by weight1.5% by weight
Moisture Content0.50% maximum0.50% maximum
Unpacked Bulk Density (Minimum)350 g/L22 ft/lb3
Fiber Length (nominal)3, 6, & 13 mm0.125, 0.25, & 0.50 in

ZOLTEK’s PX35 unsized chopped fibers provide distribution of individual filaments for applications requiring full filament bundle dispersion.

Recommended Use: Applications requiring full dispersion of fiber bundles
Applications: Carbon papers, infrastructure

Material OverviewSIUS
Sizing ChemistryNoneNone
Moisture Content (wet)25% approximately25% approximately
Fiber Length (nominal)3 mm
6 mm
13 mm
25 mm
50 mm
0.125 in
0.25 in
0.50 in
1.0 in
2.0 in

ZOLTEK PX35 Continuous Tow

ZOLTEK PX35 Continuous 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.

Material OverviewSIUS
Tensile Strength4,137 MPa600 ksi
Tensile Modulus242 GPa35 msi
Elongation1.7%1.7%
Electrical Resistivity0.00155 ohm-cm0.00061 ohm-in
Density1.81 g/cc0.065 lb/in3
Fiber Diameter7.2 microns0.283 mils
Carbon Content95%95%
Yield267 m/kg397 ft/lb
Textile Units267 m/kg33700 denier
Spool Weight5.5 kg, 11 kg12 lb, 24 lb
Spool Length1,500 m , 3,000 m1,640 yd, 3,280 yd
Download Complete Datasheet

ZOLTEK PXFT carbonized felts are produced from 100% ZOLTEK OX felts; that are continuously carbonized and supplied in roll form. ZOLTEK PXFT carbon felts can be used in many applications, including: stationary energy storage batteries, high temperature furnace linings, acid gas mist eliminators and as a carbon composite materials. Customers can apply their own post treatments and the felt is easy to process into customer specific designs.

Felt Material Overview
Carbon Content95%
Fiber Diameter7-9 µm
Fiber Density~1.78 g/cc (0.064 lb/in3)
BET Surface Area~1 m2/g
Trace MetalsFe < 20 ppm, Na < 30 ppm, Ca < 20 ppm
Material OverviewPXFT FT-1750PXFT FT-1750PX35 FT1035-100PX35 FT1035-100PXFT FT-540PXFT FT-540PXFT-450PXFT-450PXFT FT-305PXFT FT-305PXFT FT-250PXFT FT-250PXFT FT-50PXFT FT-50
SIUSSIUSSIUSSIUSSIUSSIUSSIUS
Width98 cm39 in98 cm39 in98 cm39 in98 cm39 in98 cm39 in98 cm39 in80 cm31.5 in
Areal Weight1,750 gsm51.6 opsy1035 gsm30.5 opsy540 gsm15.9 opsy450 gsm13.3 opsy305 gsm9.0 opsy265 gsm7.8 opsy50 gsm1.5 opsy
Thickness16.5 mm0.65 in12.0 mm0.47 in6.0 mm0.24 in4.8 mm0.19 in4.0 mm 0.16 in3.4 mm0.13 in1.0 mm0.039 in
Felt Bulk Density0.11 g/cc0.00397 lb/in30.09 g/cc0.00325 lb/in30.09 g/cc 0.00325 lb/in30.09 g/cc0.00325 lb/in30.08 g/cc 0.00289 lb/in30.08 g/cc0.00289 lb/in30.05 g/cc0.0018 lb/in3
Roll Length45 m49 yds45 m49 yds45 m49 yds45 m49 yds80 m87 yds80 m87 yds80 m87 yds
Electrical Resistivity2.2 Ω mm2.2 Ω mm6.3 Ω mm6.3 Ω mm3.9 Ω mm3.9 Ω mm4.0 Ω mm4.0 Ω mm5.8 Ω mm5.8 Ω mm~5.0 Ω mm~5.0 Ω mm66 Ω mm 66 Ω mm
Open Porosity94%94%95%95%95%95%95%95%96%96%96%96%97%97%
Tensile Strength in MD / XMD direction0.30 MPa / 0.30 MPa0.30 MPa / 0.30 MPa0.19 MPa / 0.34 MPa0.19 MPa / 0.34 MPa0.43 MPa / 0.41 MPa0.43 MPa / 0.41 MPa0.28 MPa / 0.48 MPa0.28 MPa / 0.48 MPa0.67 MPa / 0.36 MPa0.67 MPa / 0.36 MPa0.24 MPa/0.21 MPa0.24 MPa/0.21 MPa1.47 MPa / 0.51 MPa1.47 MPa / 0.51 MPa
Elongation in MD / XMD Direction18.6%/26.0%18.6%/26.0%41.5%/39.5%41.5%/39.5%19.3%/18.1%19.3%/18.1%18.5% / 18.3%18.5% / 18.3%13.2% / 16.0%13.2% / 16.0%13.9%/19.5%13.9%/19.5%7.9% / 25.5%7.9% / 25.5%

ZOLTEK PX35 milled carbon fiber is specially processed PAN (polyacrylonitrile) based fiber perfectly suitable for high-volume applications that require notable strength and/or electrostatic dissipation. All ZOLTEK milled carbon fiber products are free of any sizings, and our unique in-house milling system ensures the utmost product quality and traceability from raw material through finished product.

MATERIAL OVERVIEWPX 35PX 35PX 30 MF/MEPX 30 MF/ME
SIUSSIUS
Carbon Content95%95%99%99%
Electrical Resistivity (Volume)0.00155 ohm-cm0.00061 ohm-in0.0014 ohm-cm0.00055 ohm-in
Linear Resistivity0.0761 Ω/cm0.02996 Ω/in0.069 Ω/cm0.02717 Ω/in
Density1.81 g/cc0.065 lb/in1.75 g/cc0.063 lb/in3
Bulk Density490 g/L30.6 lb/ft3465 g/L (MF150)
350 g/L (MF200)
30.6 lb/ft3 (MF150)
30.6 lb/ft3 (MF200)
Fiber Diameter7.2 μ0.283 mils7.2 μ0.283 mils
Average Fiber Length100 μ (MF150)
150 μ (MF200)
4 mils (MF150)
6 mils (MF200)
100 μ (MF150)
150 μ (MF200)
4 mils (MF150)
6 mils (MF200)
Filament ShapeRoundRoundRoundRound

ZOLTEK Multi-Directional Fabrics are produced from our ZOLTEK PX35 continuous carbon fiber tow. ZOLTEK utilizes unique fiber spreading techniques to obtain a wide range of Multi-Directional fabric weights for a varied set of composite part applications. A quick composite part build-up is cost effectively achieved with our diverse weight range of low-cost carbon fabric products. ZOLTEK Multi-Directional Fabrics drapable fabric construction is also ideal for complex shape preforms. Pillar and Tricot stitching patterns are available as needed.

Applications: Automotive, marine, Aircraft, Infrastructure
Recommended Use: Body Panels (Interior/Exterior), Components/Undercarriage, Reinforcement

Material Fiber PropertiesSIUS
Tensile Strength4,137 MPa600 ksi
Tensile Modulus242 GPa35 msi
Electrical Conductivity0.00155 ohm-cm0.00061 ohm-in
Density1.81 g/cc0.065 lb/in3
Fiber Diameter7.2 microns0.000283 in
Carbon Content95%95%

Ideal for rapidly building part thickness with excellent composite properties, ZOLTEK PX35 allow for higher manufacturing throughput at a lower cost. These prepreg tapes are available in areal weights from 150 gsm to 600 gsm, based on carbon areal weight. Different epoxy resin formulations meet 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.

Recommended Use: Any, Excellent for hand layup or automated fabrication processes
Applications: Wind energy, automotive, petroleum production, aviation, marine, industrial, other transportation, medical (including x-ray), sports and recreation

Typical PropertiesSIUSMethod
Tensile Strength1,850 MPa268 ksiDIN EN ISO 527
Tensile Modulus130 GPa18.9 msiDIN EN ISO 527
Compressive Strength1,320 MPa191 ksiDIN EN ISO 14126
Compressive Modulus125 GPa18.1 msiDIN EN ISO 14126
Interlaminer Shear Strength70 MPa10 ksiASTM D 2344
+/-45 In-Plane Shear Strength59 MPa8.6 ksiDIN EN ISO 14129
+/-45 In-Plane Shear Modulus4.8 GPa696 ksiDIN EN ISO 14129
Glass Translation Temperature (Tg,G")120°C248°FDMA

ZOLTEK’s™ Pultruded Profiles are pre-cured, thick-ply carbon fiber laminates for ideal structural reinforcement applications. Available in a variety of thicknesses and complex shapes, our pultrusion products deliver optimized properties with high fiber volumes, nearly zero void content, and locked-in filament alignment.

ZOLTEK PX35 carbon fiber tows are fed into our proprietary impregnation and curing process which creates smooth carbon fiber laminates resulting in efficient laydown when building thickness. The specific fiber alignment achieved with pultrusion delivers consistently better overall properties in laminates than any other composite manufacturing process. Depending on the end application, these pultruded profiles are typically produced with a thermoset epoxy or vinyl ester resin in a proprietary low-cost, high-throughput process.

Pultruded profiles are production-ready carbon composites for infrastructure applications, deep sea exploration, wind energy, and other applications benefiting from the unique properties of pultruded carbon fiber parts.

Applications: Wind Energy, Infrastructure, Offshore Drilling, Mining, Other Structural Reinforcement Applications

Product FeatureTest MethodPX35/Vinyl EsterPX35/Vinyl EsterPX35/EpoxyPX35/Epoxy
Fiber Volume Fraction (Mean)ASTM D317162%69%65%69%
Flexural E Modulus (Mean)ASTM D6272151 GPa163 GPa135 GPa167 GPa
Flexural Strain (Characteristic)ASTM D62720.88%1.02%1.1%1.04%
Interlaminar Shear Strength (Characteristic)ISO 1413062 MPa67 MPa69 MPa71 MPa
Transverse Strength (Characteristic)ASTM D790/ISO 52772 MPa60 MPa62 MPa108 MPa
Axial Tensile ModulusISO 527/DIN EN 2561141 GPa161 GPa144 GPa164 GPa
Axial Compressive ModulusASTM D6641/DIN EN 2850133 GPa148 GPa135 GPa145 GPa
Linear Tensile Strain to Failure (Characteristic)ISO 527/DIN EN 25611.06%TBD1.2%1.09%
Linear Compression Strain to Failure (Characteristic)ASTM D6641/DIN EN 28500.73%0.74%0.75%0.68%

* Typical data based on 5mm thick pultruded profiles

ZOLTEK, together with Toray, has developed a new innovative technology and input material for Sheet Molding Compound (SMC) for compression molding. SMC is a material consisting of resin and chopped carbon fiber which is placed into matched metal tooling to mold a finished part.

The new carbon fiber tow product still consists of a large tow (50K), but it is now split into 3K sub tows, so that when chopped it breaks apart into a homogeneous isotropic bed of small tow carbon fiber which is easily wet out in the SMC process. The resulting molding compound produces a revolutionary strong and stiff composite part suitable for automotive and other applications.

Final parts molded from SMC benefit from a high throughput compounding process coupled with low cost inputs (resin and fiber). Further, the molding process is highly efficient with very low waste. More than 97% of the compound is used in the final molded part with very little edge trim or other scrap.

Typical Properties - Cut Coupons, Average 0/90:
PROPERTYMETHODUNITSVALUE
Specific GravityASTM D792g/cm31.41
Tensile ModulusASTM D638GPa34.0
Tensile StrengthASTM D638MPa217
Flexural ModulusASTM D790GPa27.6
Flexural StrengthASTM D790MPa432
Impact Strength N -IzodASTM D4812J/m483
Glass Transition by DMAASTM 7028°C (Tan Delta)>192
Water AbsorptionASTM D570%<0.30
DTUL (HDT)ASTM D648°C>250
ShrinkageASTM D6289&0.01
FlammabilityUL 94HB

ZOLTEK has specifically designed continuous tow, chopped fibers, and milled fibers for both general and high-temperature engineering thermoplastics. To further optimize the solutions provided, ZOLTEK has also developed specific sizing technology for all major thermoplastic materials. The end result is a revolutionized approach to thermoplastics in which compounders can achieve physical property improvements that will move thermoplastic into new application areas. With this technology, nylon compounds can replace traditional cast aluminum and Mg applications. PP compounds can compete with higher density filled materials or vertical panel applications. Higher heat materials have already been compounded for use in 3D printed tooling.

Our portfolio of sizings are compatible with Nylons, Polycarbonates, and several high-temperature thermoplastics (PEI, PEEK, PPS, etc.).

Each ZOLTEK PX35 thermoplastic-optimized fiber has its benefits. High bulk density values allow for cleaner, more consistent flow rates. Chopped fiber is available in various lengths for thermoplastic compounding. Milled fiber is available in pellet form of as a dry powder. The compact pellet form maintains its integrity from the package through the hopper and distributes easily during compounding, improving process and product performance

ZOLTEK’s PX35 carbon fiber also has excellent mechanical and electrical properties including electrical conductivity, dimensional stability, and low thermal expansion.

ZOLTEK’s Uni-Directional Fabric (Stitch-Bonded) is produced from our ZOLTEK PX35 50K Continuous Tow Carbon Fiber. In keeping with ZOLTEK’s commitment to providing ideal solutions to a variety of application challenges, this product’s unique fiber spreading techniques enable a wide range of fabric weights and constructions for composite part applications. Specially constructed for enhanced infusibility, ZOLTEK’s Uni-Directional Fabric also allows for a rapid build-up of part thickness. Depending on an application’s unique needs, fabric treatment such as binders can be added to the fabric.

Composite PropertiesSIUSMethod
Tensile Strength1,400 MPa203 ksiDIN EN ISO 527
Tensile Modulus119 GPa17.2 msiDIN EN ISO 527
Compressive Strength980 MPa142 ksiDIN EN ISO 14126
Compressive Modulus118 GPa17.5 msiDIN EN ISO 14126
Flexural Strength1,290 MPa187 ksiDIN EN ISO 14125
Felxural Modulus112 GPa16.2 msiDIN EN ISO 14125
Download Complete Datasheet

ZOLTEK PX35 tow weave carbon fabric is produced from our durable signature ZOLTEK PX35 50K Continuous Tow Carbon Fiber material. As part of our ongoing commitment to providing innovative carbon fiber solutions for a variety of industrial and everyday applications, this product provides a cost-effective quick composite part build-up to achieve a superior aesthetically pleasing designc. Some common applications for this industry-leading tow weave carbon fabric include large composite tooling parts as well as finished composite components for a range of different applications.

Material OverviewP/TW28-50P/TW28-50SW48-50SW48-50
SIUSSIUS
ConstructionPlain or Twill WeavePlain or Twill Weave5 Harness Satin Weave5 Harness Satin Weave
Warp Yarn1/cm2.6/in2/cm5.1/in
Fill Yarn1.5/cm3.8/in2.4/cm6.1/in
Areal Weight960 g/m228 oz/yd21,640 g/m248.4 oz/yd 2
Width1,270 mm50 in1,270 mm50 in
Thickness1.5 mm0.055 in2.8 mm0.093 in
Roll Length30 m32.8 yd25 m27.3 yd
YarnZOLTEKPX35 50K Tow with Epoxy Sizing at 1.5%ZOLTEKPX35 50K Tow with Epoxy Sizing at 1.5%ZOLTEKPX35 50K Tow with Epoxy Sizing at 1.5%ZOLTEKPX35 50K Tow with Epoxy Sizing at 1.5%
Applications.

ZOLTEK Corporation PX35 Applications

ZOLTEK PX35 is the dominant carbon fiber in the wind turbine industry and is on the forefront of many other applications including infrastructure, automotive, pressure vessels, offshore drillings, and other industrial applications. It is the best value proposition of any other carbon fiber with market-leading properties at a market-leading price.