Volume 33 Issue 01
Jan.  2007
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Yang Yang, Chen Gong. Analysis of the properties for epoxy curing agents with reactivity and toughening[J]. Journal of Beijing University of Aeronautics and Astronautics, 2007, 33(01): 119-122. (in Chinese)
Citation: Yang Yang, Chen Gong. Analysis of the properties for epoxy curing agents with reactivity and toughening[J]. Journal of Beijing University of Aeronautics and Astronautics, 2007, 33(01): 119-122. (in Chinese)

Analysis of the properties for epoxy curing agents with reactivity and toughening

  • Received Date: 19 Jan 2006
  • Publish Date: 31 Jan 2007
  • A type of novel epoxy curing agent, Bis(2-hydroxy-3-amidoethylaminemethyl-5 -nonylphenyl) methane(BA) was synthesized from dimer which was obtained from n onylphenyl and formaldehyde. The structure of this curing agent was attributed b y IR and 1HNMR. The reactivity of the curing agent was investigated by using the differential scanning calorimetry(DSC), and the optimum content of BA used in c uring process was definited at 43.19% in weight. From the results of dynamic mec hanical analysis(DMA), the β- relaxation contributed by the nonyl of BA was con firmed, which increased the toughness of the cured resins. The results of mechan ical performance test demonstrates that the impact strength of the resins cured by BA was 36.91% higher than that of the resins cured by normal aromatic amine. In conc lusion, BA is a elasticizer and active curing agent for epoxy resins.

     

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