Knowde Enhanced TDS
Identification & Functionality
- Chemical Family
- Polymer Name
- Reinforcement Form
- Reinforcement Material
- Composite Materials Functions
- Technologies
Features & Benefits
- Materials Features
- Key Features & Benefits
• Initial cure from 50°C
• Post cure: 170°C
• Autoclave processing
• Excellent surface finish
Applications & Uses
- Applications
- Composites Processing Methods
- Applications
Composite tooling
Properties
- Physical Form
- Mechanical Properties
- Typical Properties
| Value | Units | Test Method / Conditions | |
| Thermogravimetry (DSC) | 190 | °C | - |
| Value | Units | Test Method / Conditions | |
| Cure Temperature | 50 –180 | °C | - |
Technical Details & Test Data
- Material Types
Fiber Type Weave Style Weight Thickness/Ply Width Carbon Twill 2/2 200 g/m2 0.23 mm 1250 mm Carbon Twill 2/2 645 g/m2 0.72 mm 1250 mm Glass 8HS 300 g/m2 0.25 mm 1250 mm Glass Twill 2/2 800 g/m2 0.70 mm 1250 mm - Cure Cyle
Heat ramp up rate: 1.0 - 2.0°C/minute up to temperature, under 6-7 bar pressure and >0.9 bar vacuum.
Preferred initial cure can be either of the following:
50°C for 8 hours
60°C for 4 hours
Ensure even heat in the autoclave and make sure that temperature does not exceed over 5°C of the component initial cure temperature.
When the entire component has reached the initial curing temperature, hold for the specified time.
Cool the laminate under pressure to room temperature (or <30°C) at 3°C per minute (max).
Tooling can be demoulded from the master after this cure.
For post cure, the tool must rest on a level surface to prevent possible deformation. The recommended post cure cycle is as follows:
• From initial cure temperature, ramp up at 1°C per minute up to 170°C and cure for >2.5 hours, then cool naturally. This will provide a Tg >170°C (DSC).
• Post cure > 4h @ 170°C provides a Tg of 190°C (DSC).
The maximum heat ramp up rate at each stage is 1°C/minute.
Storage & Handling
- Shelf Life
Storage Temperature Shelf life -18°C 12 months 20°C Tack life: 4 days
Out life: 5 days