Knowde Enhanced TDS
Identification & Functionality
- Polymer Name
- Composite Materials Functions
- Technologies
- Product Type
177°C (350°F) Cure Cyanate Ester High Temperature Toughened Cyanate Ester Resin System
Features & Benefits
- Materials Features
- Product Highlights
- High temperature stability and resistance to microcracking
- Capable of 260°C (500°F) extended dry service with short-term capability to 316°C (600°F)
- Low void content with OOA/VBO cure
- Utilizes standard 177°C (350°F) cure temperature with optional freestanding post cure at 232–260°C (450–500°F) to develop full high temperature capability
Applications & Uses
- Applications
- Composites End Use
- Composites Processing Methods
- Recommended Applications
- Launch
- Space & Satellite
- Motorsport & Formula 1
- Automotive
- Aerostructures
- Radome
- Industrial
- Heat shields
- Ablative structure
- Missile nose cones/nozzles
- Supersonic aircraft
- Attractive alternative to BMI or polyimides
Properties
- Physical Form
- Mechanical Properties
- Thermal Properties
- Typical Properties
| Value | Units | Test Method / Conditions | |
| Poisson’s Ratio | 0.38 | — | — |
| Shear Modulus | 1.45 (0.21) | Gpa (Msi) | — |
| Tensile Modulus | 3.93 (0.57) | Gpa (Msi) | — |
| Value | Units | Test Method / Conditions | |
| Coefficient of Thermal Expansion (CTE) at (500°F ) Post Cure | 55 | ppm/°C | — |
| Coefficient of Thermal Expansion (CTE) at 177°C (350°F) Cure | 60 | ppm/°C | — |
| Dry Tg 2 hours (177°C/350°F) Cure | 176 (349) | °C (°F) | — |
| Dry Tg After post cure 1 hour (260°C/500°F) | 348 (658) | °C (°F) | — |
| Wet Tg 2 hours (177°C/350°F) Cure | 167 (333) | °C (°F) | — |
| Wet Tg After post cure 1 hour (232°C/450°F) | 289 (552) | °C (°F) | — |
| Value | Units | Test Method / Conditions | |
| Density at 177°C (350°F) Cure | 1.22 | g/cc | — |
| Density at 260°C (500°F ) Post Cure | 1.2 | g/cc | — |
| Outgassing (CVCM) | max. 0.01 | % | ASTM E595 |
| Outgassing (TML) | 0.41 | % | ASTM E595 |
| Outgassing (WVR) | 0.28 | % | ASTM E595 |
Storage & Handling
- Shelf Life
- Out Life: 21 days at 21°C (70°F) or below and 60% RH or lower
- Frozen Storage Life: 6 months at -18°C (< 0°F) or below
Out life is the maximum time allowed at the conditions noted before cure, after a single frozen storage cycle in the original unopened packaging at -18°C (0°F) or below for a period not exceeding the frozen storage life noted above.