TITLE:
Effect of Mechanical Treatment Temperature on Electrical Properties and Crystallite Size of PVDF Film
AUTHORS:
Ambran Hartono, Suparno Satira, Mitra Djamal, Ramli Ramli, Herman Bahar, Edi Sanjaya
KEYWORDS:
Crystallite Size; PVDF; Roll Hot Press; Scherrer Equation; Surface Resistivity; Temperature Different; XRD
JOURNAL NAME:
Advances in Materials Physics and Chemistry,
Vol.3 No.1,
March
29,
2013
ABSTRACT: Fabrication of PVDF films has been making using Hot Roll Press.
Preparation of samples carried out for nine different temperatures. This
condition is carried out to see the effect of temperature fabrication on
electrical properties and crystallite
size of PVDF films. The electrical properties like as surface resistivity are
discussion focus in this paper. Surface resistivity properties of PVDF can be
improved by mechanical treatment on the varying film thickness and the temperature. To obtain the diffraction
pattern of sample characterization is performed using X-Ray Diffraction.
Crystallite size of PVDF films calculate from broadening pattern of X-Ray
Diffraction. Furthermore, from the diffraction pattern calculated β fraction and crystallite size, for
calculation to determine the crystallite size of the sample by using the
Scherrer equation. Has been obtained an increase piezoelectric properties of
PVDF films that characterized by increasing β fraction. Have been obtained β fraction increased from 25.4% up to
44% for temperatures of 130°C up to 170°C, respectively. Resistivity value has
been obtained at temperature 130°C up to 170°C, decreased from 1.23 × 104 Wm up to 0.21 × 104 Wm respectively. From the
experimental results and the calculation of crystallite sizes obtained for the
samples with temperature 130°C up to 170°C respectively are increased from 7.2
nm up to 20.54 nm. These results indicate that mechanical treatment caused
increase β fraction and decrease surface
resistivity. Increasing temperatures will also increase the size of the
crystallite of the sample. This happens because with the increasing temperature
causes the higher the degree of crystallization of PVDF film sample is formed,
so that the crystallite size also increases.