#TITLE_ALTERNATIVE#

• Main Author: PRATIWI (NIM 10204035), TETA
• Format: Final Project
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/11507
• Institution: Institut Teknologi Bandung

Poly(vinylidene fluoride) has a crystal part and an amorf part, and is known as semi-crystalin polymers. Poly(vinylidene fluoride) has piezoelectric property because it has molecule orientation that fulfill the standard of piezo-electric material. In general there are three phase of those material, that is a-phase, b-phase, and g-phase. Great orientation of molecule that is a piezo-electric stipulation fulfilled by b-phase.<p>At this experiment, a thin film is made from poly(vinylidene fluoride) polymers, to prove how big an influence from a polling (given a high electric field) to yield beta-phase, which causes big piezo-electric property incidence. Poly(vinylidene fluoride) which is in the form of pellet is thinned to be turned into thin film by milled it using two cylinders that include a heater filament.<p>Polling and un-polling samples are analysed by fourier transform infra red(FTIR). Hence, conclusion is obtained: increasing the electric field when applied at pooling time can increase poly(vinylidene fluoride) molecule orientation, marked with many maximum and also minimum top, that is useful for comparison between samples. In PVDF film characterization, infrared with wave number 4000-750 cm-1 is applied. The increasing of molecule orientation can increase the transformation between alpha-phase to beta-phase, and also an improvement of poly(vinylidene fluoride) film piezo-electric effect.