MANUFACTURE OF PLASTICS FILM CONTAINING OF POLYSTIRENE, POLYCAPROLACTONE, POLY(3-HIDROKSIBUTYRATE-CO-3- HIDROXYVALERATE) AND BIODEGRADATION STUDY IN OCEAN WATER

• Main Authors: Asiska Permata Dewi, Erizal Zaini, Akmal Djamaan
• Format: Article
• Language: Indonesian
• Published: Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Andalas 2014-03-01
• Series: Jurnal Riset Kimia
• Online Access: http://jrk.fmipa.unand.ac.id/index.php/jrk/article/view/167

ABSTRACT The manufacture of a biodegradable plastics film containing of polymer synthetic polystyrene (PS) and biopolymer of polycaprolactone (PCL), poly(3-hydroxybutyrate-co-3-hydroxyvalerate) [P(3HB-ko-3HV)] and biodegradation study in ocean water has been carried out. Plastics film containing of PS/PCL/P(3HB-ko-3HV) produced by blending techniques followed by solvent casting with ratios were of 100/0/0, 95/5/0, 95/0/5, 90/5/5, 85/10/5, 85/5/10. This testing was conducted based on immersion test method recommend by American Society for Testing and Materials. Poly blend plastics film PS/PCL/P(3HB-ko-3HV) were characterized by tensile strength, thermal properties and SEM analysis. The profiles of the rate biodegradation view by weight reduction of the tested plastic film for 1-7 weeks period. Tensile strength analysis showed the decreasing of tensile strength with the addition of P(3HB-ko-3HV). Thermal analysis showed a decreasing in the melting point with the addition of PCL and P(3HB-co- 3HV). SEM micrograph showed the destruction occurred and erosion at surface of plastic film during observation time. The rate of biodegradation showed that increasing of PCL and P (3HBco- 3HV) in a mixture of plastic film, so biodegradation increased. Keywords: polystyrene, polycaprolactone, poly(3-hidroxybutyrate-co-3-hydroxyvalerate), biodegradation, film plastic.