Knowde Enhanced TDS
Identification & Functionality
- Chemical Family
- Polymer Name
- Composite Materials Functions
- Technologies
Features & Benefits
- Materials Features
- Product Highlights
- Very tough matrix
- Excellent adhesive properties
- Tolerant to many production techniques
- High melt viscosity, giving easy processing characteristics
- Suitable for low to medium pressure laminating and molding
- Variable cure cycles
- Long shelf life at -18°C and out life at 23°C
- Excellent surface finish
Applications & Uses
Properties
- Physical Form
- Cured Properties
| Value | Units | Test Method / Conditions | |
| Tensile strength at 125°C | 34.9 | Mpa | ISO R527 type 1 |
| Tensile Modulus at 125°C | 3.76 | GPa | ISO R527 type 1 |
| Tensile Strain at 125°C | 8.41 | % | ISO R527 type 1 |
| Poisson’s ratio at 125°C | 0.39 | — | ISO R527 type 1 |
| Flexural Modulus at 125°C | 3.51 | GPa | ISO 178 |
| Compression strength at 125°C | 290 | Mpa | ISO 604 |
| Compression Strain at 125°C | 7.4 | % | ISO 604 |
| Toughness K1C at 125°C | 1.55 | Mpa | — |
| Toughness G1C at 125°C | 541 | J/m2 | — |
| Glass transition temperature (Tg) at 125°C | 107 | °C | DMTA |
| Cured Density at 125°C | 1.22 | g/cm3 | — |
| Vol. shrinkage at 125°C | 1.59 | % | — |
Technical Details & Test Data
- Curing Conditions
1 hour at 125°C and 300kN/m2 (3 bar) pressure.
Heat up rate 2°C to 10°C
HexPly 920 is very versatile and can cure much quicker at high temperaturesTemperature °C Time (Mins) 140 30 150 15 160 10 170 5
Performance testing should accompany the alternative cure cycles to ensure they are suitable for the particular application. Thick
components require a dwell in the cure cycle of 2-3 hours at 90°C to avoid the risk of an exotherm in the matrix.
Storage & Handling
- Storage Life
- Tack Life @ 23°C 30 days
- Guaranteed Shelf Life @ -18°C 12 months (minimum)
Storage conditions.
HexPly 920 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).