Knowde Enhanced TDS
Identification & Functionality
- Chemical Family
- Reinforcement Form
- Reinforcement Material
- Composite Materials Functions
- Technologies
Features & Benefits
- Materials Features
Applications & Uses
- Applications
- Composites Processing Methods
- Applications
- Commercial Aircraft
- Military Applications
Properties
- Color
- Physical Form
- Cured Properties
- Uncured Properties
| Value | Units | Test Method / Conditions | |
| Specific Gravity (Net Shape) | 1.48 | g/cc | ASTM D-792 |
| Molding Shrinkage (Net Shape) | max. 0.000 (max. 0.000) | inch/inch (mm/mm) | ASTM D-955 |
| Flexural Strength (Net Shape) | 89,000 (613) | psi (MPa) | ASTM D-790 |
| Flexural Modulus (Net Shape) | 5.0 x106 (34.5) | psi (GPa) | ASTM D-790 |
| Tensile Strength (Net Shape) | 42,000 (289) | psi (MPa) | ASTM D-638 |
| Tensile Modulus (Net Shape) | 8.0 x106 (55.1) | psi (GPa) | ASTM D-638 |
| Compression Strength (Net Shape) | 40,000 (275) | psi (MPa) | ASTM D-695 |
| Compression Modulus (Net Shape) | 4.6 x106 (31.7) | psi (GPa) | ASTM D-695 |
| Izod Impact (notched) (Net Shape) | 18 (960) | ft.lb./in. (J/M) | ASTM D-256 |
| Flexural Strength (Machined) | 77,000 (531) | psi (MPa) | ASTM D-790 |
| Flexural Modulus (Machined) | 4.6 x106 (31.7) | psi (GPa) | ASTM D-790 |
| Tensile Strength (Machined) | 31,500 (217) | psi (MPa) | ASTM D-3039 |
| Tensile Modulus (Machined) | 5.0 x106 (34.5) | psi (GPa) | ASTM D-3039 |
| Short Beam Shear (Machined) | 6,500 (44.8) | psi (MPa) | ASTM D-2344 |
| Shear Strength, in-plane (Machined) | 30,000 (206) | psi (MPa) | ASTM D-5379 |
| Shear Modulus, in-plane (Machined) | 1.6 x106 (11) | psi (GPa) | ASTM D-5379 |
| Shear Strength, interlaminar (Machined) | 9,500 (65.5) | psi (MPa) | ASTM D-5379 |
| Shear Modulus, interlaminar (Machined) | 0.42 x106 (2.9) | psi (GPa) | ASTM D-5379 |
| Coefficient of Thermal Expansion (Machined) | 6 | μm/m°C | TMA |
| Glass Transition Temperature (Machined) | 329 (165) | °F (°C) TanDelta | ASTM D-7028 |
| Value | Units | Test Method / Conditions | |
| Carbon Fiber Content (Nominal) | -55 | %w/w | — |
| Resin Content (Nominal) | -45 | %w/w | — |
| Fiber Length (Nominal) | 1 | inches | — |
Technical Details & Test Data
- Molding Suggestions
Lytex® 4149 can be molded at temperatures in the range of 280-330°F, with 310°F suggested as a starting point. Cure times will be dependent on molding temperature and part thickness and will typically be 10-15 minutes. Detailed molding suggestions are available on request. Cool molded parts at ambient temperature. A cooling fixture may be needed depending on part thickness and geometry.
Storage & Handling
- Shelf Life
- 6 Months (0°F)
- Precautions
Lytex® 4149 contains carbon fibers and should be handled carefully in order to minimize skin contact. Molding areas should be well ventilated to minimize exposure to fumes. Presses must be provided with local exhaust to remove vapors from work areas. If adequate ventilation is not available, a respirator approved for removing organic vapor must be used. Care must be taken to prevent contact of carbon fibers with electrical equipment.