Knowde Enhanced TDS
Identification & Functionality
- Chemical Family
- Polymer Name
- Composite Materials Functions
- Technologies
Features & Benefits
- Materials Features
- Product Highlights
- Excellent mechanical properties
- Very good hot/wet performance
- High Tg > 200 °C (390 °F)
- Versatile cure regime 165/190 °C (330/375 °F)
- Low viscosity and high flow
Applications & Uses
Properties
- Physical Form
- Cured Properties
| Value | Units | Test Method / Conditions | |
| Cured Resin Density (180°C (350°F)) | 1.265 (0.046) | g/cm³ (lb/in³) | — |
| Tensile strength at 180°C (350°F) | 56 (8.1) | MPa (ksi) | ISO R527 type 1 |
| Tensile Modulus at 180°C (350°F) | 4.05 (0.59) | GPa (msi) | ISO R527 type 1 |
| Strain at 180°C (350°F) | 1.7 (1.7 ) | % | ISO R527 type 1 |
| Poisson’s ratio at 180°C (350°F) | 0.384 (0.384) | — | ISO R527 type 1 |
| Flexural strength at 180°C (350°F) | 129 (18.7) | MPa (ksi) | ISO 178 |
| Flexural Modulus at 180°C (350°F) | 3.44 (0.48) | GPa (msi) | ISO 178 |
| K1C at 180°C (350°F) | 0.49 (0.45) | MPa (ksi) | — |
| G1C at 180°C (350°F) | 51 (0.29 ) | J/m2 (in-lb/in2) | — |
| Glass transition temperature (Tg) at 180°C (350°F) | 190-220 (374-428) | °C (°F) | DMTA |
Technical Details & Test Data
- Curing Conditions
- The ideal cure cycle is 2 hours at 180 °C (350 °C), at a pressure between 3 and 5 bar.
- Alternative cure cycles can be used:
Cure cycle Glass : Transition
30 min at 165 °C (330 °F) + post curing 3 hours at 180 °C (350 °F) : 221 °C (430 °F)
30 min at 170 °C (340 °F) + post curing 3 hours at 180 °C (350 °F) : 231 °C (450 °F)
30 min at 180 °C (350 °F) + post curing 3 hours at 180 °C (350 °F) : 235 °C (460 °F)Performance testing should accompany the alternative cure cycles to ensure they are suitable for the particular application.
Storage & Handling
- Storage Life
- Out Life @ 23 °C (73 °F) 10 days
- Storage Life @ -18 °C (0 °F) 12 months (maximum from date of manufacture)
Storage conditions
HexPly® 922-1 prepregs should be stored as received in a cool dry place or in a refrigerator. After removal from refrigerator storage, prepreg should be allowed to reach room temperature before opening the polythene bag thus preventing condensation. A full reel in its packaging can take up to 48 hours.