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High Temperature Degradation of 5250-4 Polymer Resin

by Patrick E. Link
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Current price ₹5,106.00
Original price ₹5,974.00
Original price ₹5,974.00
Original price ₹5,974.00
(-15%)
₹5,106.00
Current price ₹5,106.00

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Book cover type: Paperback
  • ISBN13: 9781286866801
  • Binding: Paperback
  • Subject: N/A
  • Publisher: Biblioscholar
  • Publisher Imprint: Biblioscholar
  • Publication Date:
  • Pages: 102
  • Original Price: GBP 45.95
  • Language: English
  • Edition: N/A
  • Item Weight: 195 grams
  • BISAC Subject(s): General

5250-4 bismaleimide resin is used in high performance polymer matrix composites with high temperature aeronautical applications. This thesis investigated the thermal and oxidative degradation of 5250-4 neat resin powder in argon, air, and oxygen environments. The powder was agedat 163, 177, and 190 ⁰C in all environments for at least 250 hours. Isothermal thermo-gravimetric analysis demonstrated that weight loss was negligible for agingin the argon environment, indicating weight loss isthe result of an oxidative process at these temperatures.The 5250-4 powder exhibited an initial period of weightgain before eventually losing weight inboth air and oxygen. The applicabilityof a closedloop oxidation scheme to 5250-4 gravimetric behavior was investigated. Kinetic parameters for the scheme were determined for the AirForce Research Laboratory's polymermatrix composite lifetime prediction modeling efforts.

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