Effect of hexane treatment and uniaxial stretching on bending electricity of polyvinylidene fluoride (PVDF)
The effect of hexane treatment and uniaxial stretching in polyvinylidene fluoride (PVDF) film was studied. The quantity, β31, defined as the bending piezoelectric stress constant, was calculated. After hexane treatment and uniaxial stretching of the PVDF film, the value of β31 was 5.75 mV/m and 8.00 mV/m for draw ratio of 1.5 and 2.5 was recorded. Fourier transform Infra-red (FTIR) spectrophotometry was used for structural investigations.
Key words: Polyvinylidene fluoride (PVDF), bending piezoelectric stress constant β31, Fourier Transform infra-red (FTIR) spectrophotometry, iodine doping, hexane treatment, uniaxial stretching.
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