Insect damaged wood as a source of reinforcing filler for thermoplastic composites
Keywords:Compression moulding, electron microscopy, mechanical properties, polymer, thermal analysis.
AbstractIn this study, wood polymer composites were manufactured using insect damaged Eastern Black Sea Fir (A. Nordmanniana) wood as filler. The effects of wood type (sound vs insect damaged) and presence of coupling agent (0% vs 3%) on the flexural, tensile, impact, thermal and morphological properties of the wood polymer composites were investigated. The mechanical property values of the wood polymer composites specimens decreased when insect damaged wood was used as filler than sound wood, except for the impact strength values. Flexural, tensile and impact strength values, insect damaged wood filled with coupling agent composites provided higher values compared to sound wood filled without coupling agent composites. However, addition of maleic anhydride-graftedpolyethylene coupling agent into polymeric matrix improved both sound and insect damaged filled composite properties. Thermogravimetric analysis analysis showed two main decomposition peaks for polymer composites. Compared to unfilled high-density polyethylene, addition of both sound and insect damaged wood reduced decomposition peak but increased the residue due to the charring of the wood. The results of differential scanning calorimeter analysis showed that addition of sound or insect damaged wood in polymer matrix increase the crystallinity compared the unfilled high-density polyethylene due to the nucleating effect of the filler. Among the composite maleic anhydride-graftedpolyethylene modified composites provided higher crystallinity than unmodified ones.
Adhikary, K.B., 2008. Development ofwood flour recycled polymer composite panels as building materials. Ph.D. Thesis, University of Canterbury, Christchurch, New Zeland, 229p.
Ashori, A. 2008. Wood-plastic composites as promising green-composites for automotive industries. Bioresources Technology 99:4661-4667.
ASTM D 256. 2002. Determining the Izod Pendulum Impact Resistance of Plastics. American society for Testing and Materials. West Conshohocken (PA).
ASTM D 638. 2004. Standard Test Method for Tensile Properties of Plastics., American society for Testing and Materials. West Conshohocken (PA). 08 (01).
ASTM D 790 2004. Flexural Properties of Unreinforced and Reinforced Plastics and Electrical Insulating Materials. American society for Testing and Materials.West Conshohocken (PA).08 (01).
ASTM D3418. 2008. ASTM International, Standard test method for transition temperatures and enthalpies of fusion and crystallization of polymers by differential scanning calorimetry. American society for Testing and Materials. West Conshohocken (PA).
Ateşoğlu, A.; Tunay, M.; Kaygın, T.A.; Yıldız, Y.; Kavaklı, Z. 2014. Analysis and query of the damages resulted from fir bark beetle in gıs environment within forests of Zonguldak-Ulus forestry department. 2nd Symp of Turkey Forest Ent and Path Symp Proceed 157-164.
Ayrilmis, N., Buyuksari, U., Dundar, T. 2010. Waste pine cones as a source of reinforcing fillers for thermoplastic composites. J Appl Polym Sci 117:2324-2330.
Bledzki, A.K.; Gassan, K. 1999. Composites reinforced with cellulose based fibres. Progress in Polymer Science 24:221-274.
Chen, R.S.; Ghani, M.H.A.; Ahmad, S.; Salleh, M.N.; Tarawneh, M.A. 2015. Rice husk flour biocomposites based on recycled high-density polyethylene/polyethylene terephthalate blend:effect of high filler loading on physical, mechanical and thermal properties. Journal of Composites Materials 49(10):1241-1253.
Clemons, C. 2002. Wood-plastic composites in the United States: the interfacing of two industries. Forest Products Journal 52:10-18.
Deka, B.K.; Maji, T.K. 2010. Effect of coupling agent and nanoclay on properties of HDPE, LDPE, PP, PVC blend and Phargamites karka nanocomposite. Composites Science and Technology 70: 1755-1761.
Jeske, H.; Schirp, A.; Cornelius, F. 2012. Development of a thermogravimetric analysis (TGA) method for quantitative analysis of wood flour and polypropylene in wood plastic composites (WPC). Thermochimica Acta 543:165-171.
Kaymakci, A.; Ayrilmis, N. 2014. Investigation of correlation between Brinell hardness and tensile strength of wood plastic composites. Composites: Part B 58:582-585.
Klyosov, A.A. 2007. Wood-Plastic Composites. John Wiley & Sons, Hoboken, NJ, 702p. Kordkheili, H.Y.; Farsi, M.; Rezazadeh, Z. 2013. Physical, mechanical and morphological properties of polymer composites manufactured from carbon nanotubes and wood flour. Composites: Part B 44:750-755.
Lee, H.; Kim, S.D. 2009. Preparation and Physical Properties of Wood/Polypropylene/Clay Nanocomposites. Journal of Applied Polymer Science, Vol. 111:2769-2776.
Li, Y. 2012. Effect of Coupling Agent Concentration, Fiber Content, and Size on Mechanical Properties of Wood/HDPE Composites. International Journal of Polymeric Materials and Polymeric Biomaterials 61(11):882-890.
Maldas, D.; Kokta, B.V.; Deneault, C. 1989. Influence of coupling agents and treatments on the mechanical properties of cellulose fiber-polystyrene composites. Journal of Applied Polymer Sciences 38:413-439.
Mathewi, A.P.; Oksman, K.; Sain, M. 2006. The effect of morphology and chemical characteristics of cellulose reinforcements on the crystallinity of polylactic acid. Journal of Applied Polymers Science 101(1):300-310.
Mengeloglu, F.; Kabakci, A. 2008. Determination of thermal properties and morphology of eucalyptus wood residue filled high density polyethylene composites. International Journal of Molecular Sciences 9(2):107-119.
Mengeloglu, F.; Karakuş, K. 2008. Some properties of eucalyptus wood flour filler recycled high density polyethylene polymer-composites. Turkish Journal of Agriculture and Forestry 32:537-546.
Mengeloglu, F.; Matuana, L.M. 2003. Mechanical properties of extrusion foamed rigid pvc/ wood-flour composites. Journal of Vinyl and Additive Technology 9:26-31.
Moreno, P.; Rodrigue, D.; Giroux, Y.; Ballerini, A.; Gacitua, W. 2013. Morphological and mechanical caracterization of recyceled thermoplastic foams reinforced with wood sub-products. Maderas-Ciencia y Tecnologia 15(1):3-16.
Ndiaye, D.; Tidjani, A. 2012. Effects of coupling agents on thermal behavior and mechanical properties of wood flour/polypropylene composites. Journal of Composites Materials 46(24):3067-3075.
Nitin, S.; Singh, V.K. 2013. Mechanical behavior of walnut reinforced composite. Journal of Material Science and Environmental Science 4(2):233-238.
Panthapulakkal, S.; Zereshkian, A.; Sain, M. 2006. Preparation and characterization of wheat straw fibers for reinforcing application in ınjection molded thermoplastic composites. Bioresources Technology 97:265-272.
Pilla, S.; Gong, S.; O’Neill, E.; Rowell, R.M.; Krzysik, A.M. 2008. Polylactide-pine wood flour composites. Polymer Engineering and Science 48(3):578-587.
Quillin, D.; Caulfield, D.F.; Koutsky, J.A. 1993. Crystallinity in the polypropylene/cellulose system: I. Nucleation and crystalline morphology. Journal of Applied Polymers Science 50(7):1187-1194.
Serin, O.Z.; Güleç, T. 2014. Effects of pityokteines curvidens on the chemical composition of abies nordmanniana ssp. Nordmanniana. 2nd Symp of Turkey Forest Ent and Path Symp Proceed 268-271.
Shebani, A.N.; Reenen, V.; Meincken, M. 2009. The effect of wood species on the mechanical and thermal properties of wood-LDPE composites. Journal of Composites Materials 43(11):1305-1318.
Tascioglu, C.; Tufan, M.; Yalcin, M.; Sen, S. 2014. Determination of biological performance, dimensional stability, mechanical and thermal properties of wood–plastic composites produced from recycled chromated copper arsenate-treated wood. Journal of Thermoplast Composites Materials 1-19. DOI: 10.1177/0892705714565704.
Tufan, M.; Akbaş, S.; Güleç, T.; Taşçıoğlu, C.; Alma, M.H. 2015. Mechanıcal, Thermal, Morpologıcal Propertıes And Decay Resıstance Of Fılled Hazelnut Husk Polymer Composıtes. Maderas-Ciencia y Tecnologia 17(4):865-874.
Wang, Y.C.; Wong, P.M.H.; Kodur, V. 2007. An experimental study of the mechanical properties of fibre reinforced polymer (FRP) and steel reinforcing bars at elevated temperatures. Composite Structures 80:131-140.
Wechsler, A.; Hiziroglu, S. 2006. Some of the properties of wood-plastic composites. Journal of Building and Environment 42:2637-2644.