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Park Aerospace E-752-LT HTS45E23

Park’s E-752-LT is a toughened; 350°F (177°C) cure epoxy resin system with 315°F (157°C) wet Tg for primary and secondary structural applications. E-752-LT is formulated for efficient processing in high volume Automated Fiber Placement (AFP) applications manufacturing. The resin system offers a combination of toughness, low moisture uptake and good mechanical properties. E-752-LT is formulated to laminate In Autoclave (AC), Out of Autoclave (OOA) and Press cure conditions.

Polymer Name: Epoxy Resins & Compounds

Functions: Prepreg

Processing Methods: Out of Autoclave Prepreg, Prepreg Processing

End Uses: Ducts, Fairings, Nacelles, Wing Box, Wing Ribs, Wing Skins

Technical Data Sheet

Enhanced TDS

Knowde-enriched technical product data sheet

Identification & Functionality

Chemical Family
Epoxy & Epoxy Derivatives
Polymer Name
Epoxy Resins & Compounds
Composite Materials Functions
Prepreg
Technologies
Composite Materials
Product Families
Composite Materials — Prepregs & Molding Compounds
Thermoset Prepregs

Features & Benefits

Materials Features
Reduces Moisture Uptake
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

Markets
Automotive & Transportation,
Industrial
Applications
Automotive & Transportation — Automotive
Interior
Industrial — Power, Water & Utilities
Renewable Energy
Automotive & Transportation — Transportation
Aerospace & Aviation
Composites End Use
Ducts,
Fairings,
Nacelles,
Wing Box,
Wing Ribs,
Wing Skins
Composites Processing Methods
Out of Autoclave Prepreg,
Prepreg Processing
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
ValueUnitsTest Method / Conditions
Fabric Area Weight 145±5gsm-
Prepreg Resin Content35±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 FAW
Property 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 Park Aerospace E-752-LT HTS45E23 - Prepreg Storage Life

Prepreg Storage Life
  • Tack Life: Contact Park Engineering
  • Out Life: Contact Park Engineering
  • Shelf Life: 12 months @ 0°F (-18°C)