Mechanical and thermal behaviour of biodegradable composites based on polycaprolactone with pine cone particle
Polycaprolactone (PCL) was reinforced with natural fibres as they not only permit a substantial reduction of the material costs, but also play a role as reinforcement in mechanical properties. This work was focused on the estimation of mechanical and thermal behaviour based on PCL and Pine Cone particles (PCP) filler at different weight percentages (0, 5, 10, 15, 30 and 45 wt%). Tests results indicated considerable improvement in mechanical properties, corresponding to a gain in impact strength and % elongation of 6 and 9.2% at 15 wt% particle loading, respectively. Some decrease in thermal stability was observed for composites with increasing filler content where as composite at 15% PCP was not significantly affected. Lower melting and crystallization enthalpies and higher crystallinity values were obtained for bio-composites compared with neat PCL. Some decrease in thermal stability and increase in oxygen and water vapour barrier properties were also observed for composites with increasing filler content.
KeywordsImpact strength pine cone polycaprolactone scanning electron microscope
The Authors are grateful to the Director of Institute Instrumentation Centre, India Institute of Technlogy, Roorkee, Uttarakhand and CIPET, Govt. of India, Amritsar, Punjab for their support in the characterization of the green composites. Also, for DIT University for partial funding of the research.
- 1.Bogoeva-Gaceva G 2013 Biocomposites based on poly (lactic acid) and kenaf fibers: effect of microfibrillated cellulose. Maced. J. Chem. Chem. Eng. 32(2): 331–335Google Scholar
- 2.Hung S J and Edelman P G 1995 An overview of biodegradable polymers and biodegradation of polymers. In: Degradable Polymers: Principles and Application, eds. G Scott and D Gilead, 8–24. London: Chapman & HallGoogle Scholar
- 8.Bisanda E T N and Ansell M P 1999 The effect of silane treatment on the mechanical and physical properties of sisal-epoxy composites. Compos. Sci. Technol. 141: 165–178Google Scholar
- 12.Kabir M M, Wang H, Aravinthan T, Cardona F and Lau K T 2011 Effects of natural fiber surface on composite properties: a review. In: eddBE Proceedings, pp. 94–99Google Scholar
- 14.Shakoor A, Muhammad R, Thomas N L and Silber Schmidt V V 2013 Mechanical and thermal characterisation of poly (l-lactide) composites reinforced with hemp fibers. J. Phys. Conf. Ser. 451: 012010Google Scholar
- 15.R Khandanlou, MB Ahmad, K Shameli, MZ Hussein, N Zainuddin and K Kalantari 2014 Mechanical and thermal stability properties of modified rice straw fiber blend with polycaprolactone composite. J. Nanomater. 675258: 9Google Scholar
- 18.Turker Dundar, Nadir Aryrilmis and Umit Buyuksari 2010 Utilization of waste pine cone in manufacture of wood/plastic composite. In: 2nd International Conference on Sustainable Contruction Material and Technologies 28th–30th June. Universita politecnica Delle Marche, Ancona, ItalyGoogle Scholar
- 28.Sergio N M, Veronica Calado, Ruben Jesus S Rodriguez and Frederico M Margem 2012 Thermogravimetric behavior of natural fibers reinforced polymer composites—an overview. Mater. Sci. Eng. A557: 17–28Google Scholar