Effect of nano zinc oxide on physical and mechanical properties of wood plastic composites

Document Type : Research Paper

Authors

1 Associate Prof ., Department of wood engineering and technology, Gorgan university of agricultural sciences and natural resources, Gorgan, Iran

2 Associate Prof., Department of Wood Engineering and Technology, Gorgan University of Agricultural Sciences and Natural Resources, Gorgan, Iran

3 B.Sc., Graduated in Wood Preservation and Modification, Gorgan University of Agricultural Sciences and Natural Resources, Gorgan, Iran

Abstract

In this study, the effects of nano zinc oxide on the physical and mechanical properties of wood-polyethylene composites were investigated. The composites containing 0, 1, 2 and 4 wt% zinc oxide nanoparticles were manufactured using an internal mixer and a laboratory press and then the flexural and tensile properties, hardness, water absorption and thickness swelling of the samples were evaluated. The obtained results showed that using 2 and 4 percent nano zinc oxide significantly reduced the flexural strength, flexural modulus and tensile strength. The results also revealed that the hardness and tensile modulus of composites were negatively affected by loading 4 percent nano zinc oxide. The evaluation of physical properties showed that incorporating nano zinc oxide (2 and 4 %) increased thickness swelling. In the case of water absorption, just 4 percent nano zinc oxide increased the values.

Keywords

References

[1]  Schut, J., 1999. For compounding, sheet & profile: Wood is good. Plastic Technology, 45(3):  46-60.
[2]  Stark, N.M., 2003. Photodegradation and photostabilization of weathered wood flour filled polyethylene composites. Michigan Technological University.
[3]  San, H., L. Nee. and H. Meng., 2008. Physical and bending properties of injection moulded wood plastic composites boards. ARPN Journal of Engineering and Applied Sciences, 3:13-19.
[4]  Morris, P. and Cooper,p., 1998. Recycled plastic/wood composite lumber attacked by fungi. Forest products journal, 48(1): 86-88.
[5]  Schirp, A.,2008. Biological degradation of wood-plastic composites (WPC) and strategies for improving the resistance of WPC against biological decay., American Chemical Society, Washington, DC. p. 480-507.
[6]  Fabiyi, J.S., 2007.  Chemistry of Wood-Plastic Composites Weathering, in College of Graduate Studies University of Idaho.
[7]  Muasher, M. and M. Sain., 2006. The efficacy of photostabilizers on the color change of wood filled plastic composites. Polymer degradation and stability, 91(5): 1156-1165.
[8]  Rasouli, D., 2013. The effect of nano zinc oxide and zinc borateon weathering of wood-HDPE  composite  and improving its  stability  by  photostabilizers., Ph.D Thesis, in College of Graduate Studies.  Natural Resources Faculty, University of Tehran.(In Persian).
[9]  Farahani, M.R.M. and F, Banikarim., 2013. Effect of Nano-Zinc Oxide on Decay Resistance of Wood-Plastic Composites. BioResources, 8(4): 5715-5720.
[10] Rasouli, D., M. Faezipour. and M.R. Masteri Farahani., 2015. Effects of nano zinc oxide and micro zinc borate on the durability of wood flour/HDPE composite, Journal of Wood & Forest Science and Technology, 21(4): 131-146.
[11] Weichelt, F., 2010. ZnO‐Based UV Nanocomposites for Wood Coatings in Outdoor Applications. Macromolecular Materials and Engineering, 295(2): 130-136.
[12] Li, S.C. and Y.N. Li., 2010. Mechanical and antibacterial properties of modified nano‐ZnO/high‐density polyethylene composite films with a low doped content of nano‐ZnO. Journal of Applied Polymer Science, 116(5): 2965-2969.
[13] Bledzki, A.K. and O. Faruk., 2003. Wood fibre reinforced polypropylene composites: effect of fibre geometry and coupling agent on physico-mechanical properties. Applied Composite Materials, 10(6): 365-379.
[14] Lu, J.Z., Q. Wu. and I.I, Negulescu., 2005. Wood‐fiber/high‐density‐polyethylene composites: Coupling agent performance. Journal of Applied Polymer Science, 96(1): 93-102.
[15] Rong, M., M. Zhang. and W. Ruan., 2006. Surface modification of nanoscale fillers for improving properties of polymer nanocomposites: a review. Materials science and technology, 22(7): 787-796.
[16] Kord, B., A.H. Hemmasi. and I. Ghasemi., 2011. Properties of PP/wood flour/organomodified montmorillonite nanocomposites. Wood science and technology, 45(1): 111-119.
[17] Adhikary, K.B., S. Pang. and M.P, Staiger., 2008. Long-term moisture absorption and thickness swelling behaviour of recycled thermoplastics reinforced with Pinus radiata sawdust. Chemical Engineering Journal, 142(2): 190-198.
[18] Ghasemi, I. and B, Kord., 2009. Long-term water absorption behaviour of polypropylene/wood flour/organoclay hybrid nanocomposite. Iranian Polymer Journal, 18(9): 683-691.(In Persian).
[19] Stokke, D.D. and D.J. Gardner., 2003. Fundamental aspects of wood as a component of thermoplastic composites. Journal of Vinyl and Additive Technology, 9(2): 96-104.
[20] Kord, B., 2012. Effect of nanoparticles loading on properties of polymeric composite based on Hemp Fiber/Polypropylene. Journal of Thermoplastic Composite Materials, 25(7): 793-806.
[21] Pratheep Kumar, A. and R. Pal Singh., 2007. Novel hybrid of clay, cellulose, and thermoplastics. I. Preparation and characterization of composites of ethylene–propylene copolymer. Journal of Applied Polymer Science, 104(4): 2672-2682.
Iranian Journal of Wood and Paper Industries
Volume 8, Issue 1
June 2017
Pages 15-24

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