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Fabrication of PVDF films has been making using Hot Roll Press.Preparation of samples carried out for nine different temperatures. Thiscondition is carried out to see the effect of temperature fabrication onelectrical properties and crystallitesize of PVDF films. The electrical properties like as surface resistivity arediscussion focus in this paper. Surface resistivity properties of PVDF can beimproved by mechanical treatment on the varying film thickness and the temperature. To obtain the diffractionpattern of sample characterization is performed using X-Ray Diffraction.Crystallite size of PVDF films calculate from broadening pattern of X-RayDiffraction. Furthermore, from the diffraction pattern calculated β fraction and crystallite size, forcalculation to determine the crystallite size of the sample by using theScherrer equation. Has been obtained an increase piezoelectric properties ofPVDF films that characterized by increasing β fraction. Have been obtained β fraction increased from 25.4% up to44% for temperatures of 130°C up to 170°C, respectively. Resistivity value hasbeen obtained at temperature 130°C up to 170°C, decreased from 1.23 × 104 Wm up to 0.21 × 104 Wm respectively. From theexperimental results and the calculation of crystallite sizes obtained for thesamples with temperature 130°C up to 170°C respectively are increased from 7.2nm up to 20.54 nm. These results indicate that mechanical treatment causedincrease β fraction and decrease surfaceresistivity. Increasing temperatures will also increase the size of thecrystallite of the sample. This happens because with the increasing temperaturecauses the higher the degree of crystallization of PVDF film sample is formed,so that the crystallite size also increases.

KEYWORDS

Crystallite Size; PVDF; Roll Hot Press; Scherrer Equation; Surface Resistivity; Temperature Different; XRD

Cite this paper

A. Hartono, S. Satira, M. Djamal, R. Ramli, H. Bahar and E. Sanjaya -Effect of Mechanical Treatment Temperature on Electrical Properties and Crystallite Size of PVDF Film,- Advances in Materials Physics and Chemistry, Vol. 3 No. 1, 2013, pp. 71-76. doi: 10.4236-ampc.2013.31011.





Autor: Ambran Hartono, Suparno Satira, Mitra Djamal, Ramli Ramli, Herman Bahar, Edi Sanjaya

Fuente: http://www.scirp.org/



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