Effect of Plasticizers on Tapioca Starch-Based Biofilms via Blown Film Extrusion Process

Abstract:

In this study, a series of tapioca starch-based low density polyethylene (LDPE) biofilms were prepared via extrusion process and further using blown film extrusion with various contents of starch. Various contents of glycerol and palm oil based olein as plasticizers, both ranging from 5 wt% to 20 wt% were added to blends. The starch-based LDPE blends were undergo the melt flow index analysis to study its processability before further process by film blowing extrusion. Both film blowing ability and melt indexes displayed the effect of both plasticizers in starch-based LDPE blends. Starch based LDPE biofilms with addition of 5 wt% palm oil based glycerin show large influence on the shear viscous properties of starch polymer melts compared to glycerol. Palm oil based glycerin would decrease the viscosity of starch polymer melt since it can decrease the polymer entanglement density and increase the ease of disentanglement.

• Periodical: Advanced Materials Research (Volume 1113)
• Pages: 539-544
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.1113.539
• Online since: July 2015
• Authors: R.R. Ali, W.A.W.A. Rahman, H. Hasbullah, R.M. Kasmani, N. Ibrahim, A.N. Sadikin, U.A. Asli
• Keywords: Blown Film Extrusion Process, Glycerol, Palm Oil-Based Olein, Tapioca Starch-Based Biofilm

References

[1] A. A. Shah, F. Hasan, A. Hameed, A. and S. Ahmed, Biological Degradation of Plastics: A Comprehensive Review, Bio. Advances, 26 (2008)246-265.

DOI: 10.1016/j.biotechadv.2007.12.005

[2] D. Bikiaris and C. Panayiotou, LDPE/starch Blends Compatibilized with PE-g-MA Copolymers, J Appl Pol Sci, 70 (1998)1503-1521.

DOI: 10.1002/(sici)1097-4628(19981121)70:8<1503::aid-app9>3.0.co;2-#

[3] J. L. Willett, Mechanical Properties of LDPE/Granular Starch Composites, J Appl Pol Sci. 54 (1994)1685-1695.

DOI: 10.1002/app.1994.070541112

[4] F. Rodriguez-Gonzalez, B. Ramsy, and B. Favis, Rheological and Thermal Properties of thermoplastic Starch with High Glycerol Content, Carb Pol, 58 (2004)139-147.

DOI: 10.1016/j.carbpol.2004.06.002

[5] H. Liu, F. Xie, L. Yu, L. Chen and L. Li, Thermal Processing of Starch-based Polymers, Prog Pol Sci, 34 (2009)1348-1368.

[6] S. Mali, L. S. Sakanaka, F. Yamashita and M. V. E. Grossman, Water Sorption and Mechanical Properties of Cassava Starch Films and Their Relation to Plastisizing Effect, Carb Polymer. 60 (2005)283-289.

DOI: 10.1016/j.carbpol.2005.01.003

[7] A. Altskär, R. Andersson, A. Boldizar, K. Koch, M. Stading, M. Righdal and M. Thunwall, Some Effects of Processing on the Molecular Structure and Morphology of Thermoplastic Starch, Carb Pol, 71 (2008)591-597.

DOI: 10.1016/j.carbpol.2007.07.003

[8] R. P. H. Brandelero, M. V. E. Gorsmannand F. Yamashita, Effect of the Method of Production of the Blends on Mechanical and Structural Properties of Biodegradable Starch Films Produced by Blown Extrusion, Carb Pol, 86 (2011)1344-1350.

DOI: 10.1016/j.carbpol.2011.06.045

[9] F. Xie, P. Halleyand L. Avérous, Rheology to Understand and Optimize Processability, Structures and Properties of Starch Polymeric Materials, Prog Pol Sci, 37 (2012)595-623.

DOI: 10.1016/j.progpolymsci.2011.07.002

[10] M. Thunwall, V. Kuthanova, A. Boldizarand M. Rigdahl, Film Blowing of Thermoplastic Starch, Carb Pol, 71 (2008)583-590.

DOI: 10.1016/j.carbpol.2007.07.001

[11] J. L. Guimarăes, F. Wypych, C. K. Saul, L. P. Ramos and K. G. Satyanarayana, Studies of the Processing and Characterization of Corn Starch and its Composites with Banana and Sugarcane Fibers from Brazil, Carb Pol, 80 (2010)130-138.

DOI: 10.1016/j.carbpol.2009.11.002

[12] W. H. Ferreira, R. R. Khalili, J. M. Mario, F. Junior and C. T. Andrade, Effect of Organoclay on Blends of Individually Plasticized Thermoplastic Starch and Polypropylene, Ind Crops & Prod, 52 (2014)38-45.

DOI: 10.1016/j.indcrop.2013.10.016