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Preparation and characterization of chitosan/poly(vinyl alcohol) blended films: Mechanical, thermal and surface investigation

El-Hefian, Esam A. and Mahmoud Nasef, Mohamed and Yahaya, Abdul Hamid (2011) Preparation and characterization of chitosan/poly(vinyl alcohol) blended films: Mechanical, thermal and surface investigation. E-Journal of Chemistry, 8 (1). pp. 91-96. ISSN 0973-4945

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Official URL: http://dx.doi.org/10.1155/2011/969062

Abstract

In this study, blends of chitosan (CS) and polyvinyl alcohol (PVA) (CS/PVA) having various proportions were prepared and characterized by universal mechanical tester, the differential scanning calorimetry (DSC) and contact angle measurements. Studying the mechanical properties of the films showed that blending improved the tensile strength, which increased with increasing PVA content up to 40% while the elongation% at break of the blends was decreased compared to that of the pure components. The obtained results of DSC suggested that some interaction between chitosan and PVA mostly took place. Static water contact angle measurements showed an improvement in the wettability of the obtained films.

Item Type:Article
Uncontrolled Keywords:blended films, chitosan, poly(vinyl alcohol), wettability
Subjects:T Technology > TP Chemical technology
Divisions:Chemical and Natural Resources Engineering
ID Code:29373
Deposited By: Yanti Mohd Shah
Deposited On:13 Mar 2013 02:19
Last Modified:31 Jan 2022 08:41

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