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AMS3914A - Advanced Composites Prepreg - Nominal 250 °F Cure – 12K Tow Carbon Fiber and Epoxy Resin, Plain Weave Fabric

Details
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Document Number: AMS3914A
Project Initiation: 04-15-2013
Project Number:
Revision Number: A
Sponsor Name: Sam Tiam
Title
Advanced Composites Prepreg - Nominal 250 °F Cure – 12K Tow Carbon Fiber and Epoxy Resin, Plain Weave Fabric
Scope
This specification establishes the requirements for a nominal 250 °F cure epoxy preimpregnated carbon fiber plain weave fabric product. The prepreg is a plain weave fabric with 12K tows, a nominal fiber areal weight of 193 gsm, and nominal resin content of 42%. The purpose of this specification is to allow procurement of the material corresponding to the statistically derived material properties published in MIL-HDBK-17.
Rationale
Clarified the scope of specification by removing Toray test procedures in reference section, correcting prepreg requirements and adding prepreg shelf life extension, adding new HPLC (method II) requirements, correcting the cool down temp and cool down rate of cure cycle, and made clear the laminate Tg (Dry) testing of specimens.
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