COMPOSITES SCIENCE AND ENGINEERING ›› 2013, Vol. 0 ›› Issue (6): 44-47.

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EVALUATION OF A HIGH TEMPERATURE-RESISTANT BISPHENOL A TYPE 2H-CHROMENE RESINS AS THE MATRIX OF COMPOSITES

CHENG Kai, YANG Guang*, GAO Long-fei   

  1. Key Laboratory of Aerospace Materials and Performance,Ministry of Education, School of Mater Sci ence Engineering,Beihang University,Beijing 100191,China
  • Received:2012-11-26 Online:2013-09-28 Published:2022-03-15

Abstract: Bisphenol A type 2H-bichromene resins (BCA resins) were successfully prepared by heating bipropargyl ether bisphenol A (BPA) in infrared-ray oven at 185℃ for 3h. The curing behaviors of BCA resins were studied by differential scanning calorimetry (DSC). It showed the cured enthalpy was decreased to 620J/g for BCA resin. Thermal stability of the cured BCA resin was also investigated by thermal gravimetric analysis (TGA). The results of TGA revealed that the cured BCA resin possessed excellent thermal stability. Based on the BCA resins, the glass fiber reinforced composites were prepared via press molding process. In comparison of Epoxy matrix composites, the composites of BCA resins presented higher mechanical properties. The flexural strength, flexural modulus and shear strength reached to 580MPa, 24. 7GPa and 40MPa respectively. In additional, the result of dynamic mechanical thermal analysis (DMTA) indicated composite had excellent thermal stability.

Key words: 2H-chromene, propargyl, composites, infrared heating

CLC Number: