Accession Number : ADA260794


Title :   Characterization of Aerospace Grade Resins and Composites Through Pressurized Volumetric Dilatometry


Descriptive Note : Final rept. Dec 1990-Jul 1992


Corporate Author : WRIGHT LAB WRIGHT-PATTERSON AFB OH


Personal Author(s) : Russell, J D ; Curliss, D B


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/a260794.pdf


Report Date : Jul 1992


Pagination or Media Count : 93


Abstract : The technique of Pressurized Volumetric Dilatometry has been used to characterize the specific volume changes over pressure and temperature of several state-of-the-art aerospace thermoplastic and thermoset resins and composites and several pitch precursors for carbon-carbon composites. The materials studied were poly(etheretherketone) PEEK; HTA; HTX; PBO/PEEK; 3501-6 epoxy; AS4/3501-6 prepreg; IM7/8551-7A prepreg; IM7/5250-2 prepreg; Ashland Oil pitches A-240, A-60, A-70, and A-80; Reilly Coal Tar; and Mitsubishi's AR synthetic Mesophase Pitch. Accurate and reproducible Pressure-Volume-Temperature (PVT) data have been yielded by this technique. Important processing information such as Tg(P), CTE(TP), T-(P), Tc(P), cure shrinkage, and other phase changes which give rise to volume changes can be extracted from the PVT data.


Descriptors :   *TEMPERATURE , *VOLUME , *COMPOSITE MATERIALS , *AEROSPACE CRAFT , *PRESSURE , *DILATOMETERS , *PLASTICS , *CARBON CARBON COMPOSITES , SPACECRAFT , THERMOPLASTIC RESINS , PREPREGS , SPECIFIC VOLUME , PITCH(MATERIAL) , SHRINKAGE , TAR , COAL TAR , THERMOSETTING PLASTICS , OILS , CURING , ETHERS , THERMAL EXPANSION , PHASE , POLYMERS , PRECURSORS , PROCESSING


Subject Categories : Polymer Chemistry
      Laminates and Composite Materials
      Plastics
      Fluid Mechanics


Distribution Statement : APPROVED FOR PUBLIC RELEASE