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Shi Jianli, Zhao Shixi, Chen Changqi. STUDY ON THE DESIGNING OF EPOXY NETWORK STRUCTURE AND THE TOUGHENING OF COMPOSITE LAMINATES[J]. Acta Materiae Compositae Sinica, 1996, 13(1): 14-18.
Citation: Shi Jianli, Zhao Shixi, Chen Changqi. STUDY ON THE DESIGNING OF EPOXY NETWORK STRUCTURE AND THE TOUGHENING OF COMPOSITE LAMINATES[J]. Acta Materiae Compositae Sinica, 1996, 13(1): 14-18.
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STUDY ON THE DESIGNING OF EPOXY NETWORK STRUCTURE AND THE TOUGHENING OF COMPOSITE LAMINATES

  • Beijing University of Aeronautics and Astronautics Beijing, P. R. China, 100083

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  • Received Date: July 24, 1994
    Abstract
  • Based on the free volume theory and the experimental results,the contributions of the components to Tg of the network were analysed.To determine the effect of curing agent,the fracture toughness of epoxy network,cured by DDS was investigated.The experimental results showed that KIc of epoxy network cured by DDS was much tougher than the corresponding network cured by BF3MEA.According to the above analysis,the network of matrix was deliberately designed,in order to improve the interlaminar toughness of composite without the degradation of its high temperature performance,and the feasibility of this method was confirmed by the experimental data.
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