Solvay CYCOM® 381 Epoxy Prepreg with AS4 Graphite Fabric and 195FAW Epoxy

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Solvay CYCOM® 381 Epoxy Prepreg with AS4 Graphite Fabric and 195FAW Epoxy
Categories:	Polymer; Thermoset; Carbon Fiber/Thermoset Composite; Epoxy; Epoxy/Carbon Fiber Composite
Material Notes:	CYCOM® 381 epoxy prepreg is an epoxy prepreg that offers a 250°F (121°C) curing system with high 180°F (82°C)/wet mechanical properties yet has the excellent fatigue and durability necessary for primary structure applications. Features & Benefits: Excellent 180°F (82°C)/wet properties Service temperature to 220°F (104°C) Three- to four-fold increases in fatigue life compared to perhaps all conventional 250°F (121°C) curing epoxy prepregs. This increase is the result of a 10 – 15% higher strain endurance limit. Inherent toughness provides good durability and compression after impact performance Low moisture absorption Excellent for vacuum pressure/oven processing Applications: Primary and secondary structural aircraft parts requiring 180°F (82°C)/wet retention of properties and/or excellent fatigue behavior Components that require good durability and/or low processing temperatures Helicopter rotor blades Rotating or cycled components Co-cured aluminum assemblies/parts Doublers Propellers Composite repair Information provided by Cytec, subsequently acquired by Solvay.
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Mechanical Properties	Original Value	Comments

Tensile Strength	110000 psi	Warp; SACMA SRM-4
Elongation at Break	1.02 %	Warp; SACMA SRM-4
Tensile Modulus	74.0 GPa	Warp; SACMA SRM-4
Flexural Strength	124000 psi	3-point
Flexural Modulus	70.0 GPa	3-point; ASTM D790
Compressive Strength	676 MPa	Warp; SACMA SRM-1
Shear Strength	11600 psi	Warp short beam; SACMA SRM-8

Thermal Properties	Original Value	Comments
Maximum Service Temperature, Air	220 °F

Processing Properties	Original Value	Comments
Gel Time	5.00 - 8.00 min @Temperature 121 °C

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PCYTED078_3 / 192656

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