Evaluation of elevated temperature influence on mechanical properties of a commercial unrefined bagasse fiber-polypropylene composite

Document Type : Research Paper

Authors

Abstract

An experimental investigation was conducted to evaluate the effect of elevated temperatures, ranging from room temperature to 80oC, on mechanical characteristics of a commercial bagasse fiber/polypropylene composite. The test results were used to determine the temperature dependencies of the mechanical properties of the studied composite material at temperatures up to 80°C in order to develop temperature adjustment factors for the use in structural applications. The results have shown that as temperature increases, the material become more ductile due to increased plastic deformation gets lower stiffness and fails at higher strains. The resulted adjustment factors were different for each loading mode and the results also have indicated that the influence of elevated temperatures on values of modulus was higher than that on strengths.

Keywords

References

[1]     Clemons, C., 2002. Wood-plastic composites in the United States; The interfacing of two industries. Forest Product Journal, 52(6):10-18.
[2]     Cai, Zh., and Ross, R.J., 2011. Mechanical properties of wood-based composite materials. In: Wood handbook, Forest Products Laboratory, 12.1-12.12 p.
[3]     Odell, J., 2008. Wood plastic composite sill plate for continuous anchorage of shear walls in light frame wood structures. MSc thesis, Washington State University.
[4]     Dolan, J.D., DuChateau, K.A., O'Dell, J., Wolcott, M.P. and Johnson, S., 2010. Effect of form change in sill plates on shear wall performance, 11th World Conference on Timber Engineering 2010, WCTE 2010.  2:1160-1168.
[5]     Haiar, K.J., 2000. Performanceand design of prototype wood-plastic composite sections. MSc thesis, Washington State University.
[6]     Slaughter, A.E., 2004. Design and fatigue of a structural wood plastic composite, MSc Thesis, Washington State University.
[7]     Kobbe, R.G., 2005. Creep behavior of a Wood-Polypropylene Composite, MSc Thesis, Washington State University.
[8]     Zabihzade, S.M., Dastoorian, F. and Ebrahimi, Gh., 2010. Effect of wood species and coupling agent on mechanical properties of wood flour/HDPE composites. Journal of Reinforced Plastic Composite, 29(12):1814-1819.
[9]     Monteiro, S.N., Rodriquez, R.J.S., De Souza, M.V. and D'Almeida, J.R.M., 1998. Sugar cane bagasse waste as reinforcement in low cost composites. Advanced performance Materials, 5(3): 183-191.
[10]  Cerqueira, E.F., Baptista, C.A.R.P. and Mulinari, D.R., 2011. Mechanical behavior of polypropylene reinforced sugarcane bagasse fibers composites, Procedia Engineering, 10: 2046–2051.
[11]  Rodrigues, E.F., Maia, T.F., and Mulinari, D.R., 2011. Tensile strength of polyester resin reinforced sugarcane bagasse fibers modified by estherification. Procedia Engineering, 10:2348–2352.
[12]  Luz, S.M., Goncalves, A.R. and Del’Arco, A.P., 2007. Mechanical behavior and microstructural analysis of sugarcane bagasse fibers reinforced polypropylene composites. Composite: Part A, 38:1455–1461.
[13]  Luz, S.M., Del Tio, J., Rocha, G.J.M., Goncalves, A.R. and Del’Arco, A.P., 2008. Cellulose and cellulignin from sugarcane bagasse reinforced polypropylene composites: Effect of acetylation on mechanical and thermal properties. Composite: Part A, 39: 1362–1369.
[14]  Muzzy, J.D., 2000. Thermoplastics-properties. In: Kelly A and Zweben C (eds) Comprehensive composite materials, Oxford: Elsevier Science, pp. 57-76.
[15]  Schildmeyer, A.J., Wolcott, M.P., and Bender, D.A., 2009. Investigation of the temperature-dependent mechanical behavior of a polypropylene-pine composite. Journal of Materials in Civil Engineering, 21(9): 460–466.
[16]  Tajvidi, M., Feizmand, M., Falk, R.H. and Felton, C., 2009. Effect of cellulose fiber reinforcement on the temperature dependent mechanical performance of nylon 6. Journal of Reinforced Plastic Composite, 28(22): 2781-2790.
[17]  Tajvidi, M., Motie, N., Rassam, G.H., Falk, R.H. and Felton, C., 2010. Mechanical performance of hemp fiber polypropylene composites at different operating temperatures. Journal of Reinforced Plastic Composite, 29(5): 664-674.
[18]  Standard Practice for Conditioning Plastics for Testing, Annual book of ASTM standard, D618-00, 2000.
[19]  Standard Guide for Evaluating Mechanical and Physical Properties of Wood-Plastic Composite Products, Annual book of ASTM standard, D7031-04, 2004.
[20]  Standard Test Method for Tensile Properties of Plastics, American society for testing materials, Annual book of ASTM standard, D638-03, 2003.
[21]  Standard test method for compressive Properties of rigid plastics, Annual book of ASTM standard, D695-02a, 2002.
[22]  Standard test method for flexural properties of unreinforced and reinforced plastics and electrical insulating materials, D790-90, 1990.
[23]  Fleck, N.A. 1997. Compressive failure of fiber composite, Advances in Applied Mechanics, Volume 33, San Diego, Academic Press Inc., 230p.
[24]  Wisnom, M.R., 1992. The relationship between tensile and flexural strength of unidirectional composites. Journal of Composite Materials, 26(8): 1173-1180.
[25]  Roylance, D. 2001. Stress strain curves, MSc Thesis, Massachusetts Institute of Technology.
[26]  National Design Specification for Wood Construction- ASD/LRFD, 2005 edition, American Forest and Paper Association.
[27]  Stark, N.M. and Rowlands, R.E. 2003. Effects of wood fiber characteristics on mechanical properties of wood/polypropylene composites. Wood and Fiber Science, 35(2):167-174.
Iranian Journal of Wood and Paper Industries
Volume 5, Issue 2 - Serial Number 2
November 2014
Pages 119-130

Files

Share

How to cite

Statistics