Abstract
This study explores new applications for wood fibres through their incorporation on plastic matrices, developing high performance compounds for the automotive interior. Different automotive grades of polypropylene were reinforced with pine and eucalyptus fibres, in order to compare their properties with the specifications of different vehicle parts. The composites were produced using conventional plastics processing technologies, namely compounding with twin-screw extruder and injection molding. Mechanical properties, density, heat deflection temperature and Vicat softening point were determined. Other specific tests were carried to understand the feasibility of these composites use in automotive parts, namely fogging and flammability and also the determination of the tensile properties after climatic aging tests. The fibres morphology and its distribution and dispersion in the polymer matrices were evaluated by optical and scanning electron microscopy. The results show that it is possible to reinforce the raw-materials using wood and achieve the high standards of the automotive industry, producing environmentally friendlier materials, through the effective reduction of the use of plastic. This work enabled important conclusions regarding the incorporation of wood into PP matrices without compromising the specifications of certain dashboard parts and it also allowed evaluating the processability of these composites.
References
Al-Oqla, F. M., Sapuan, S. M., “Natural Fiber Reinforced Polymer Composites in Industrial Applications: Feasibility of Date Palm Fibers for Sustainable Automotive Industry”, J. Cleaner Prod., 66, 347–354 (2014) 10.1016/j.jclepro.2013.10.050Search in Google Scholar
Ashori, A., Nourbakhs, A., “Reinforced Polypropylene Composites: Effects of Chemical Compositions and Particle Size”, Bioresour. Technol., 101, 2515–2519 (2010) 10.1016/j.biortech.2009.11.022Search in Google Scholar PubMed
Bouafif, H., Koubaa, A., Perré, P. and Cloutier, A., “Effects of Fiber Characteristics on the Physical and Mechanical Properties of Wood Plastic Composites”, Composites Part A, 40, 1975–1981 (2009) 10.1016/j.compositesa.2009.06.003Search in Google Scholar
Bengtsson, M., Le Baillif, M. and Oksman, K., “Extrusion and Mechanical Properties of Highly Filled Cellulose Fibre-Polypropylene Composites”, Composites Part A, 38, 1922–1931 (2007) 10.1016/j.compositesa.2007.03.004Search in Google Scholar
Craig, C., “Wood-Plastic Composites in the United States – The Interfacing of Two Industries”, Forest Products Journal, 52, 10–18 (2002)Search in Google Scholar
El-Sabbagh, A., “Effect of Coupling Agent on Natural Fibre in Natural Fibre/Polypropylene Composites on Mechanical and Thermal Behaviour”, Composites Part B, 57, 126–135 (2014) 10.1016/j.compositesb.2013.09.047Search in Google Scholar
Faruk, O., Bledzki, A. K., Fink, H. and Sain, M., “Biocomposites Reinforced with Natural Fibers: 2000–2010”, Prog. Polym. Sci., 37, 1552–1596 (2012) 10.1016/j.progpolymsci.2012.04.003Search in Google Scholar
Franco-Marquès, E., Méndez, J. A., Pèlach, M. A., Vilaseca, F., Bayer, J. and Mutjé, P., “Influence of Coupling Agents in the Preparation of Polypropylene Composites Reinforced with Recycled Fibers”, Chem. Eng. J., 166, 1170–1178 (2011) 10.1016/j.cej.2010.12.031Search in Google Scholar
Kuo, P.-Y., Wang, S.-Y., Chen, J.-H., Hsueh, H.-C. and Tsai, M.-J., “Effects of Material Compositions on the Mechanical Properties of Wood-Plastic Composites Manufactured by Injection Molding“, Mater. Des., 30, 3489–3496 (2009) 10.1016/j.matdes.2009.03.012Search in Google Scholar
Leu, S., YangT., Lo, S. and Yang, T., “Optimized Material Composition to Improve the Physical and Mechanical Properties of Extruded Wood-Plastic Composites (WPCS)”, Constr. Build. Mater., 29, 120–127 (2012) 10.1016/j.conbuildmat.2011.09.013Search in Google Scholar
Lu, J. Z., Wu, Q. and Negulescu, I. “Wood-Fiber/High-Density-Polyethylene Composites: Coupling Agent Performance”, J. Appl. Poly. Sci., 96, 93–102 (2005) 10.1002/app.21410Search in Google Scholar
Gamon, G., Evon, Ph. and Rigal, L., “Twin-Screw Extrusion Impact on Natural Fibre Morphology and Material Properties in Poly(lactic acid) Based Biocomposites”, Ind. Crops Prod., 46, 173–185 (2013) 10.1016/j.indcrop.2013.01.026Search in Google Scholar
George, J., Sreekala, M. S. and Thomas, S., “A Review on Interface Modification and Characterization of Natural Fiber Reinforced Plastic Composites“, Polym. Eng. Sci., 41, 1471–1485 (2001) 10.1002/pen.10846Search in Google Scholar
Migneault, S., Koubaa, A., Erchiqui, F., Chaala, A., Englund, K. and Wolcott, M. P., “Effects of Processing Method and Fiber Size on the Structure and Properties of Wood-Plastic Composites”, Composites Part A, 40, 80–85 (2009) 10.1016/j.compositesa.2008.10.004Search in Google Scholar
Nygård, P., Tanem, B. S., Karlsen, T., Brachet, P. and Leinsvang, B., “Extrusion-Based Wood Fibre-PP Composites: Wood Powder and Pelletized Wood Fibres – A Comparative Study”, Compos. Sci. Technol., 68, 3418–3424 (2008) 10.1016/j.compscitech.2008.09.029Search in Google Scholar
Salleh, F. Md., Hassan, A., Yahya, R. and Azzahari, A. D., “Effects of Extrusion Temperature on the Rheological, Dynamic Mechanical and Tensile Properties of Kenaf Fiber/HDPE Composites”, Composites Part B, 58, 259–266 (2014) 10.1016/j.compositesb.2013.10.068Search in Google Scholar
Selke, S. E., Wichman, I., “Wood Fiber/Polyolefin Composites”, Composites Part A, 35, 321–326 (2004) 10.1016/j.compositesa.2003.09.010Search in Google Scholar
Sobczak, L., Lang, R. W. and Haider, A., “Polypropylene Composites with Natural Fibers and Wood – General Mechanical Property Profiles”, Compos. Sci. Technol., 72, 550–557 (2012) 10.1016/j.compscitech.2011.12.013Search in Google Scholar
Soccalingame, L., Bourmaud, A., Perrin, D., Bénézet, J.-C. and Bergeret, A., “Reprocessing of Wood Flour Reinforced Polypropylene Composites: Impact of Particle Size and Coupling Agent on Composite and Particle Properties”, Polym. Degrad. Stab., 113, 72–85 (2015) 10.1016/j.polymdegradstab.2015.01.020Search in Google Scholar
Stark, N., “Influence of Moisture Absorption on Mechanical Properties of Wood Flour-Polypropylene Composites”, J. Thermoplast. Compos. Mater., 14, 421–432 (2001) 10.1106/UDKY-0403-626E-1H4PSearch in Google Scholar
Stark, N. M., Rowlands, R. E., “Effects of Wood Fiber Characteristics on Mechanical Properties of Wood/Polypropylene Composites”, Wood Fiber Sci., 35, 167–174 (2003)Search in Google Scholar
Xu, X., Jayaraman, K., Morin, C. and Pecqueux, N., “Life Cycle Assessment of Wood-Fibre-Reinforced Polypropylene Composites”, J. Mater. Process. Technol., 198, 168–177 (2008) 10.1016/j.jmatprotec.2007.06.087Search in Google Scholar
Yeh, S., Gupta, R. K., “Improved Wood-Plastic Composites through Better Processing”, Composites Part A, 39, 1694–1699 (2008) 10.1016/j.compositesa.2008.07.013Search in Google Scholar
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