Products
Thermoplastic Carbon Fiber Prepreg (Kyron™ULTRA)
Mitsubishi Chemical’s Kyron™ ULTRA is a sheet-form intermediate material in which carbon fibers are impregnated with high performance thermoplastics. It is supplied as unidirectional (UD) prepreg, with the carbon fibers aligned in a single direction, and is designed for high-performance carbon fiber composite applications.
▶Click here for Thermoset Carbon Fiber Prepregs.
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Features
High Performance
ーBalance of Mechanical Performance and High Toughness
- By optimally combining PAN-based or pitch-based carbon fibers with high-performance thermoplastic resins such as PEEK and PEI, Kyron™ ULTRA delivers high stiffness and strength together with excellent impact resistance.
- In particular, the use of ultra-high-modulus pitch-based carbon fiber enables the design of lightweight structures with exceptionally high stiffness.
ーThermal Properties
- High-performance thermoplastic matrix resins such as PEI and PEEK provide superior heat resistance compared with conventional epoxy-based materials.
- When combined with ultra-high-modulus pitch-based carbon fiber, Kyron™ ULTRA can provide enhanced thermal conductivity and support heat-dissipation designs that efficiently transfer heat while maintaining performance at elevated temperatures.
Molding Versatility
ーAdvanced Design Flexibility for a Wide Range of Processing Methods and High-Volume Production
- Thin-ply UD prepregs with thicknesses ranging from 60 to 180 μm provide greater flexibility in laminate design and contribute to lightweight structural designs.
- The materials are compatible with a wide range of processing methods, including press forming, AFP, and ATL, allowing the most suitable process to be selected according to the application and production volume.
Consistent Quality
ーUniform Quality through Consistent Impregnation and Precise Thickness Control
- Uniform fiber impregnation and precise control of void content and thickness ensure prepregs with consistent quality and minimal product-to-product variation.
- The prepregs can be stored at room temperature without refrigeration and can be formed and joined by reheating, including through thermoplastic welding.
This image demonstrates that the internal void is kept to a minimum.
Applications
Making the most of the anisotropic nature of carbon fiber,
UD prepreg can greatly expand the range of product design by
placing the necessary prepreg in the right place.
Harnessing the characteristics of both carbon fiber and
thermoplastic resin, it can be used in a wide range of
fields such as aerospace, industry, mobility, and
snowboards.
Product Lineup
Kyron™ULTRA
Thermoplastic Resin Matrices
| Resin No. | Resin Type | Molding Temperature (°C) |
Remarks |
|---|---|---|---|
| #K42 | Polyether ether ketone (PEEK) | 380～400 | — |
| #K71 | Oil-resistant polyetherimide (PEI) | 340～380 | Enhanced Oil Resistance |
| #K72 | High-moldability polyetherimide (PEI) | 280～360 | Enhanced Processability |
Product Lineup
| Product Name | Carbon Fiber Type |
Resin Type |
Fiber Volume Fraction (%) |
Fiber Areal Weight (g/m2) |
Thickness (mm) |
0° Tensile | 90° Flexural (MPa) |
Dry Tg (°C) |
|
|---|---|---|---|---|---|---|---|---|---|
| Strength* (MPa) |
Modulus* (GPa) |
||||||||
| TR K71F145S TR K71F190S | Standard Modulus | #K71 | 60 | 145 190 | 0.135 0.180 | 2360 | 129 | 86 | 225 |
| TR K72F145S TR K72F190S | Standard Modulus | #K72 | 60 | 145 190 | 0.135 0.180 | 2350 | 134 | 80 | 215 |
| TR K42F145S TR K42F190S | Standard Modulus | #K42 | 60 | 145 190 | 0.135 0.180 | 1980 | 131 | 124 | 145 |
| MR K42F145S MR K42F190S | Intermediate Modulus | #K42 | 60 | 145 190 | 0.135 0.180 | 2490 | 155 | 142 | 145 |
| USPK72W150S | High Modulus | #K72 | 60 | 150 | 0.12 | 1670 | 380 | 49 | 215 |
| USPK72J110S | High Modulus | #K72 | 50 | 110 | 0.1 | 1340 | 327 | 53 | 215 |
| USPK42J110S | High Modulus | #K42 | 50 | 110 | 0.1 | 1360 | 322 | 54 | 145 |
*The values in the table are representative values and not guaranteed.
Thermal Properties of Pitch CF-based Kyron ULTRA
| Product Name | Carbon Fiber Type |
Resin Type |
Thermal Conductivity* (@150°C) |
Coefficient of Thermal Expansion* | ||||
|---|---|---|---|---|---|---|---|---|
| 0–200°C | 200–300°C | |||||||
| In-plane Fiber Orientation (W/(m·K)) |
Thickness Direction (W/(m·K)) |
In-plane Fiber Orientation (× 10-6/K) |
Thickness Direction (× 10-6/K) |
In-plane Fiber Orientation (× 10-6/K) |
Thickness Direction (× 10-6/K) |
|||
| USPK72W150SH | High Modulus | #K72 | 100 | 1.3 | - | - | - | - |
| USPK42J110SH | High Modulus | #K42 | - | - | -15.93 | 98.38 | -2.9 | 175.4 |
*The values in the table are representative values and not guaranteed.