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DSC spectra of 1st cooling (a) and 2nd heating (b) of the PVDF matrix incorporated with 3 wt% SiO2, SiO2-vinyl, and F-SiO2 nanoparticles, respectively. DSC spectra of first cooling (c) and second heating (d) of the PVDF matrix incorporated with 3 wt%, 5 wt%, 20 wt%, and 35 wt% F-SiO2 nanoparticles, respectively.
