Knowde Enhanced TDS
Identification & Functionality
- Chemical Family
- Polymer Name
- Composite Materials Functions
- Technologies
- Product Families
- Product Type
177°C (350°F) Curing Toughened
Cyanate Ester for RTM Applicationss
Features & Benefits
- Materials Features
- Product Highlights
- High radiation resistanc
- Low microcracking even under severe thermocycling
- Low moisture absorption
- Low dielectric constant and dissipation factors
- Low stress-free cure temperature with high level of cure
- Outstanding mechanical properties
- Compatible adhesive is EX-1516
Applications & Uses
- Markets
- Composites Processing Methods
- Recommended Applications
- High Temperature
- Space & Satellite
- Aerostructures
- Reflectors
- Radomes and antennae
- Low observables
- Space structures
- Missile structures
- Higher performance and high heat commercial Applicationss
Properties
- Thermal Properties
- Typical Properties
| Value | Units | Test Method / Conditions | |
| Coefficient of Thermal Expansion (CTE) | 64 | ppm/°C (°F) | — |
| Dry Tg 177°C (350°F) | 193 (380) | °C (°F) | — |
| Wet Tg 177°C (350°F) | 149 (300) | °C (°F) | — |
| Value | Units | Test Method / Conditions | |
| Dielectric Constant at 1 MHz | 2.85 | — | — |
| Loss Tangent at 1 MHz | 0.005 | — | — |
| Moisture Absorption | 1.4 | — | — |
| Outgassing (CVCM) | 0.01 | % | — |
| Outgassing (TML) | 0.82 | % | — |
| Outgassing (WVR) | 0.64 | % | — |
| Viscosity at 25°C (77°F) | 150 | cps | — |
| Viscosity at 77°C (170°F) | 20 | cps | — |
Technical Details & Test Data
- Crystallization
Part A has the potential to crystallize during storage depending on storage conditions. If this occurs, Part A should be heated, at 66°C (150°F) maximum, until the material becomes de-crystallized. Multiple de-crystallization cycles, at 66°C (150°F), have not shown any decreasein the room temperature shelf life of Part A. The de-crystallization temperature 66°C (150°F) is well below the temperature required to trimerize (cure) the uncatalyzed cyanate ester resin.
- Mixing And Pot Life
The mix ratio of EX-1510 is 100 Part A to 3 Part B by weight. Put the correct amount of Part A in the mix vessel first. Add Part B and mix using a high-speed dispersion mixer. Mix for 5 minutes, stop and spatula the walls and bottom of mix vessel, then mix an additional 5 minutes.
The mixed resin shall have a pot life of 4 hours minimum at 25°C (77°F). The pot life is the length of time a 150 gram mass of resin can be stored at a given temperature before doubling in viscosity. Any mass over 150 grams should have the temperature monitored after mixing and should have the appropriate safety procedures followed if the resin temperature increases by 17°C (30°F) over room temperature.
Storage & Handling
- Shelf Life
SHELF LIFE:
- Pot Life:4 hours at 25°C (77°F)
- Storage Life in Unopen Containers: Part A - 6 months at 25°C (77°F), Part B - 6 months at 25°C (77°F), Part A - 12 months at -18°C (< 0°F), Part B - 12 months at -18°C (< 0°F)