ABSTRACT Nowadays, utilization of biodegradable materials has become necessary in order to maintain global environmental and ecological balance. ‘Green’ composites offered the possible solution to waste disposal problems associated with traditional petroleum derived plastics. The use of plastics based on removable resources is enormous now a day for the development of true bio-composites. Fully biodegradable ‘Green’ textile composites have been prepared from Ecoflex and ramie fabric. Textile composites were fabricated from the Ecoflex polymer and the ramie fabric by hot compression molding technique. Interactions at the fiber–matrix interface and the compatibility between ramie fabric and Ecoflex polymer will affect the properties of the system. The mechanical property and barrier property of the composites were investigated. Static mechanical properties such as tensile strength, tensile modulus, and elongation at break of the textile bio-composites were analyzed. Sorption characteristics of water, oil and diesel in the textile composites were analyzed in order to determine its outdoor applications and the influence of macro fibers on the transport phenomena was investigated. The kinetics of sorption-diffusion process were investigated. Kinetic parameters such as n, k, diffusion coefficient, permeability, solubility parameter, % swelling index, etc., were analyzed. The water sorption mechanism in the textile composites was found to exhibit slight deviation from Fickian mode.
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K. A. Ajith Kumar, M. S. Sreekala and S. Arun, "Studies on Properties of Bio-Composites from Ecoflex/Ramie Fabric-Mechanical and Barrier Properties," Journal of Biomaterials and Nanobiotechnology, Vol. 3 No. 3, 2012, pp. 396-404. doi: 10.4236/jbnb.2012.33039.
 C. L. McCormick, “Agricultural Applications,” In: H. F. Mark, Ed., Encyclopedia of Polymer Science and Engineering, 2nd edition, John Wiley & Sons, New York, 1984, p. 611.
 K. Fukuda, “An Overview of the Activities of the Biodegradable Plastic Society,” In: M. Vert, et al., Eds., Biodegradable Polymers and Plastics, Royal Society of Chemistry, Cambridge, 1992, p. 169.
 D. Briassoulis, “An Overview on the Mechanical Behaviour of Biodegradable Agricultural Films,” Journal of Polymers and the Environment, Vol. 12, No. 2, 2004, pp. 65-81. doi:10.1023/B:JOOE.0000010052.86786.ef
 A. S. Herrmann, J. Nickel and U. Riedel, “Construction Materials Based upon Biologically Renewable Resources —From Components to Finished Parts,” Polymer Degradation and Stability, Vol. 59, No. 1-3, 1998, pp. 251- 261. doi:10.1016/S0141-3910(97)00169-9
 A. K. Mohanty, M. Misra and G. Hinrichsen, “Biofibers, Biodegradable Polymers and Biocomposites: An Over-view,” Ma-cromolecular Materials and Engineering, Vol. 276-277, No. 1, 2000, pp. 1-24.
 V. A. Alvarez, R. A. Ru-seckaite and A. Vazquez, “Degradation of sisal fiber/Mater Bi-Y biocomposites buried in soil,” Polymer Degradation and Stability, Vol. 91, No. 12, 2006, pp. 3156-3162.
 J. K. Pandey, et al., “An overview on the Degradability of Polymer Nanocomposites,” Polymer Degradation and Stability, Vol. 88, No. 2, 2005, pp. 234-250.
 G. B. Kiran, K. N. S. Suman, N. M. Rao, R. Uma and M. Rao, “A Study on the Influence of Hot Press Forming Process Parameters on Mechanical Properties of Green Composites Using Taguchi Experimental Design,” International Journal of Engineering, Science and Technology, Vol. 3, No. 4, 2011, pp. 253-263.
 M. M. Abd El-Latif, A. M. Ibrahim and M. F. El-Kady, “Adsorption Equilibrium, Kinetics and Thermodynamics of Methylene Blue from Aqueous Solutions Using Bio-polymer Oak Sawdust Composite,” Journal of American Science, Vol. 6, No. 6, 2010, pp. 267-283.
 A. Krzan, S. Hemjinda, S. Miertus, A. Corti and E. Chiellini, “Standardization and Certi-fication in the Area of Environmentally Degradable Plastics,” Polymer Degradation and Stability, Vol. 91, No. 12, 2006, pp. 2819-2833.
 S. N. Swain, S. M. Biswal, P. K. Nanda and P. L. Nayak, “Bio-degradable Soy-Based Plastics: Opportunities and Challenges,” Journal of Polymers and the Environment, Vol. 12, 2004, p. 35.
 R. Jayasekara, et al., “Biodegradation by Composting of Surface Modified Starch and PVA Blended Films,” Journal of Polymers and the Environment, Vol. 11, No. 2, 2003, pp. 49-56. doi:10.1023/A:1024219821633
 Y. X. Xu, et al., “Chitosan-Starch Composite Film: Preparation and Characterization,” Industrial Crops and Products, Vol. 21, No. 2, 2005, pp. 185-192.
 S. S. Joshi and A. M. Mebel, “Computational Modeling of Biodegradable Blends of Starch Amylase and Poly- Propylene Carbonate,” Polymer, Vol. 48, No. 13, 2007, pp. 3893-3901. doi:10.1016/j.polymer.2007.04.059
 H. Takagi and Y. Ichihara, “Effect of Fiber Length on Mechanical Properties of Green Composites Using a Starch-Based Resin and Short Bamboo Fibers,” JSME International Journal, Vol. 47, No. 4, 2004, pp. 551-555.
 H. Takagi, “Biodegradation Behavior of Starch-Based ‘Green’ Composites Rein-forced by Manila Hemp Fibers,” Proceedings of 3rd International Conference on Eco-Composites, Stockholm, 20-21 June 2005, p. 14.
 L. Jiang and G. Hinrichsen, “Flax and Cotton Fiber Reinforced Biodegradable Po-lyester Amide Composites, 2 Characterization of Biodegradation,” Die Angewandte Ma-kromolekulare Chemie, Vol. 268, No. 1, 1998, pp. 18-21.
 G. Bogoeva-Gaceva, M. Avella, M. Malinconico, A. Buzarovska, A. Grozdanov, G. Gentile and M. E. Errico, “Natural Fiber Eco-Composites,” Polymer Composites, Vol. 28, No. 1, 2007, pp. 98-107. doi:10.1002/pc.20270
 W. Wang, M. Sain and P. A. Cooper, “Study of Moisture Absorption in Natural Fiber Plastic Composites,” Composites Science and Technology, Vol. 66, No. 3-4, 2006, pp. 379-386. doi:10.1016/j.compscitech.2005.07.027
 W. J. Liu, L. T. Drzal, A. K. Mohanty and M. Misra, “Influence of Processing Methods and Fiber Length on Physical Prop-erties of Kenaf Fiber Reinforced Soy Based Biocompo-sites,” Composites Part B: Engineering, Vol. 38, No. 3, 2007, pp. 352-359.
 F. G. Torres, O. H. Arroyo and C. Gomez, “Processing and Mechanical Properties of Natural Fiber Reinforced Thermoplastic Starch Biocomposites,” Journal of Thermoplastic Com-posite Materials, Vol. 20, No. 2, 2007, pp. 207-223. doi:10.1177/0892705707073945
 A. Sorrentino, G. Gorrasi and V. Vittoria, “Potential Perspectives of Bio-Nanocomposites for Food Packaging Applications,” Trends in Food Science & Technology, Vol. 18, No. 2, 2007, pp. 84-95.
 K. Goda, M. S. Sreekala, A. Gomes, T. Kaji and J. Ohgi, “Improvement of Plant Based Natural Fibers for Toughening Green Composites—Effect of Load Application During Merce-rization of Ramie Fibers,” Composites Part A: Applied Science and Manufacturing, Vol. 37, No. 12, 2006, pp. 2213-2220.
 M. Jacob, K. T. Varughese and S. Thomas, “A Study on the Moisture Sorption Characteristics in Woven Sisal Fabric Reinforced Natural Rubber Biocomposites,” Jour- nal of Applied Polymer Science, Vol. 102, No. 1, 2006, pp. 416-423. doi:10.1002/app.24061
 M. Jacob, K. T. Varughese and S. Thomas, “Water Sorption Studies of Hybrid Biofiber-Reinforced Natural Rubber Biocomposites,” Biomacromolecules, Vol. 6, No. 6, 2005, pp. 2969-2979. doi:10.1021/bm050278p
 C. Z. Paiva Jr, L. H. de Carvalho, V. M. Fonseca, S. N. Monteiro and J. R. M. D’Almeida, “Analysis of the Tensile Strength of Polyester/Hybrid Ramie-Cotton Fabric Composites,” Po-lymer Testing, Vol. 23, 2004, pp. 131- 135.
 V. G. Geethamama and S. Thomas, “Diffusion of Water and Artificial Seawater through Coir Fiber Reinforced Natural Rubber Composites,” Polymer Composites, Vol. 26, No. 2, 2005, pp. 136-143. doi:10.1002/pc.20086
 L. Mathew, K. U. Joseph and R. Joseph, “Swelling Behaviour of Isora/Natural Rubber Composites in Oils Used in Automobiles,” Chemistry and Materials Science, Vol. 29, No. 1, 2006, pp. 91-99. doi:10.1007/BF02709362