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A series of polymer blends were prepared from 1,3-bis(3,4-dicyanophenoxy)benzene(3 BOCN) and epoxy resin with methyl tetrahydrophthalic anhydride as curing agent. The curing behavior and curing kinetics of the blends were studied by differential scanning calorimetry. The apparent activation energy of the blends with various contents of 3 BOCN was higher than that of the blends without 3 BOCN. A model experiment suggested that there is no obvious reaction between phthalonitrile and epoxy. The thermal and mechanical properties of the polymer blends were evaluated. The polymer blends exhibit high storage modulus and char yield compared with the neat epoxy. The polymer blends show ductile fracture morphology by scanning electron microscopy(SEM) images.
A series of polymer blends were prepared from 1,3-bis (3,4-dicyanophenoxy) benzene (3 BOCN) and epoxy resin with methyl tetrahydrophthalic anhydride as curing agent. The curing behavior and curing kinetics of the blends were studied by differential scanning The apparent activation energy of the blends with various contents of 3 BOCN was higher than that of the blends without 3 BOCN. A model experiment suggested that there is no obvious reaction between phthalonitrile and epoxy. The thermal and mechanical properties of the polymer blends The evaluated polymer blends exhibit high storage modulus and char yield compared with the neat epoxy. The polymer blends exhibit ductile fracture morphology by scanning electron microscopy (SEM) images.