Knowde Enhanced TDS
Identification & Functionality
- Chemical Family
- Polymer Name
- Composite Materials Functions
- Technologies
Features & Benefits
- Materials Features
- Key Features & Benefits
- Toughened epoxy for primary and secondary aerospace structures
- Specifically designed for efficient AFP processing
- Controlled flow rheology specifically designed to facilitate a wide range of processing for AC, OOA and Press cures
- Processes in OOA without the need for extensive bagging and pre-vacuum procedures - Wet DMA Tg of 315°F (157°C)
- Dry DMA Tg of 428°F (220°C)
- Capable of low laminate void content < 1%
- Product Forms
- Available AFP product forms
- 0.125”+/-0.005” (3.18 mm +/-0.13 mm)
- 0.250” +/-0.005”(6.35 mm +/-0.13 mm)
- Unidirectional (UD) Tape up to 48”(1.2 m) width
- Woven fabric prepreg up to 60” (1.5 m) width
Applications & Uses
- Applications
- Composites End Use
- Composites Processing Methods
- Applications / Qualifications
- Primary and Secondary Aerospace Structures fabricated with AFP processes
- Wings / Control Surfaces / Airframes
- Turbofan Engine Components
- Nacelles/ Fan Reversers
- Air Ducting
- Fairings
Properties
- Physical Properties
| Value | Units | Test Method / Conditions | |
| Fabric Area Weight | 145±5 | gsm | — |
| Prepreg Resin Content | 35±2 | % | — |
| Resin Flow (350°F/177°C, 50psi) | 8-20 | % | — |
Technical Details & Test Data
- Mechanical Properties
AFP Laid-up Panels, Autoclave
HTS45E23/E-752-LT @ 35% RC, 145 gsm FAWProperty Layup Condition Test Method Units Avg. 0° Tensile Strength [0°]8 RTA ASTM D3039 ksi Mpa 325 2243 0° Tensile Modulus [0°]8 RTA ASTM D3039 msi Gpa 19.8 136.6 0° Compressive Strength [0°]8 RTA SRM 1R-94 ksi Mpa 242 1668 0° Compressive Modulus [0°]8 RTA SRM 1R-94 msi Gpa 17.1 117.9 90° Compressive Strength [0°]16 RTA SRM 1R-94 ksi Mpa 49.5 341 90° Compressive Modulus [0°]16 RTA SRM 1R-94 msi Gpa 1.4 10.0 ±45° Inplane Shear Strength*[± [±45°]2s RTA ASTM D3518 ksi Mpa 12.6 87 ±45° Inplane Shear Modulus [±45°]2s RTA ASTM D3518 msi Gpa 0.6 4.3 D3518msiGPa0.64.3Open Hole Tensile Strength ([0°/45/90/-45]s)2 RTA ASTM D5766 ksi Mpa 53.5 369 D3518msiGPa0.64.3Open Hole Tensile Modulus ([0°/45/90/-45]s)2 RTA ASTM D5766 msi Gpa 7.5 51.9
Storage & Handling
- Prepreg Storage Life
E-752-LT Cure Scan Rheology0.05% Strain, 1Hz 5°C/minWide Process Controlled Flow Window
- Prepreg Storage Life
- Tack Life: Contact Park Engineering
- Out Life: Contact Park Engineering
- Shelf Life: 12 months @ 0°F (-18°C)