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ACTA AERONAUTICAET ASTRONAUTICA SINICA ›› 2000, Vol. 21 ›› Issue (S1): 112-115.

• 论文 • Previous Articles     Next Articles

STUDY OF AGING OF ADVANCED POLYMER MATRIX COMPOSITES Ⅰ. THERMOOXIDIZING AGING

GUO Mei-li1, ZHAO Yan1, XU Feng-he2, CHEN Xin-wen2, LI Xiao-jun2   

  1. 1. Department of Materials Science and Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100083, China)(2. Beijing Institute of Aeronautical Materials, Beijing 100095, China)
  • Received:1999-06-03 Revised:1999-09-15 Online:2000-11-25 Published:2000-11-25

Abstract: The changes with aging time and aging temperature in weight loss, mechanical properties and glass transition temperature of two types of advanced composites, T300/5405 and T300/ HD03, during thermooxidizing aging were studied. It was found that the aging mechanisms involved may include moisture desorption, evaporation of residual low molecular weight components and post curing, decomposition and physical aging of resin matrix. The effect of each mechanim depends on the aging temperature.

Key words: advanced composites, thermooxidizing aging, aging mechanisms