A study of structural and physical properties of polyvinil alcohol (PVA) thin film

Abstract

The purpose of this research was to study the structural and physical properties of polyvinyl alcohol (PV A) thin film. The thin films morphology was characterized by scanning electron microscope (SEM) and Fourier Transform Infrared (FTIR) spectroscopy. For SEM, the morphology of PV A powders and thin film has being measured. After that, we were also being evaluated powder for comparison to the thin film. FTIR is most useful for identifying chemicals. FTIR spectra of the thin film indicated complete esterification of the free carboxylic groups of distilled water. The PV A powder was also measured by using FTIR as comparison to the thin film. The mechanical properties of the thin films were characterized by tensile tests and hardness test. The comparison of tensile test and hardness is indicated with commercial plastic. The comparison of the width of thin film, the tensile give different reading. When width increases, the tensile strength also increases. The hardness is increase when width increase and we have found that the thin film is smooth than commercial plastic. PV A structural and physical properties suggested being test by various instruments like XRD, XRD, hemocompatibility test, and viscosity measurement, DSC thermogram characterization to get more accurate result and to know more application of it. The experimental results indicated that the PV A thin film could be tried for various applications.