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Licensed Unlicensed Requires Authentication Published by De Gruyter July 21, 2016

Effect of Coupling Agent and Ground Tire Rubber Content on the Properties of Natural Fiber Polymer Composites

  • N. Nikpour and D. Rodrigue


In this work, high density polyethylene (HDPE)/hemp fiber composites were produced by extrusion compounding followed by injection molding. In particular, the effect of ground tire rubber (GTR) and coupling agent (maleated polyethylene, MAPE) content was studied to modify the mechanical properties of these natural fiber composites (NFC). From the samples produced, a complete characterization was performed including morphology, density, hardness, as well as mechanical properties in tension, flexion, and impact. The results indicate that substantial improvement in NFC impact strength occurred after GTR addition, while tensile and flexural moduli/strengths decreased. On the other hand, the addition of a coupling agent was able to improve adhesion between each phase resulting in better composite properties. Overall, the final properties of the composites represent a balance between elasticity/toughness from GTR and rigidity/strength from hemp and MAPE. From the data obtained, a regression model for different properties is presented to design/control the final properties of these composites.

*Correspondence address, Mail address: Denis Rodrigue, Department of Chemical Engineering, Université Laval, Quebec City, G1V 0A6, Canada. E-mail:


Anuar, H., Zuraida, A., “Improvement in Mechanical Properties of Reinforced Thermoplastic Elastomer Composite with Kenaf Bast Fibre”, Composites: Part B, 42, 462465 (2011) 10.1016/j.compositesb.2010.12.013Search in Google Scholar

Araujo, J. R., Waldman, W. R. and De Paoli, M. A., “Thermal Properties of High Density Polyethylene Composites with Natural Fibres: Coupling Agent Effect”, Polym. Degrad. Stabil., 93, 17701775 (2008) 10.1016/j.polymdegradstab.2008.07.021Search in Google Scholar

Beckermann, G. W., Kim, L. P., “Engineering and Evaluation of Hemp Fibre Reinforced Polypropylene Composites: Fibre Treatment and Matrix Modification”, Composites Part: A, 39, 979988 (2008) 10.1016/j.compositesa.2008.03.010Search in Google Scholar

Biagiotti, J., López-Manchado, M. A., Arroyo, M. and Kenny, J. M., “Ternary Composites Based on PP-EPDM Blends Reinforced with Flax Fibers. Part II: Mechanical Properties/Morphology RelationshipPolym. Eng. Sci., 43, 10311043 (2003) 10.1002/pen.10087Search in Google Scholar

Book, S. A., Broder, M. A. and Feldman, D. I., “Statistical Foundations of Adaptive Cost-Estimating Relationships”, J. Cost Anal. Param., 4, 6390 (2011) 10.1080/1941658X.2011.585333Search in Google Scholar

Brahmakumar, M., Pavithran, C. and Pillai, R. M., “Coconut Fibre Reinforced Polyethylene Composites: Effect of Natural Waxy Surface Layer of the Fibre on Fibre/matrix Interfacial Bonding and Strength of Composites”, Comp. Sci. Tech., 65, 563569 (2005) 10.106/j.compscitech.2004.09.020Search in Google Scholar

Cheung, H., Ho, M., Lau, K., Cardona, F. and Hui, D., “Natural Fibre-Reinforced Composites for Bioengineering and Environmental Engineering Applications”, Composites: Part B, 40, 655663 (2009) 10.1016/j.compositesb.2009.04.014Search in Google Scholar

Clemons, C., “Elastomer Modified Polypropylene-Polyethylene Blends as Matrices for Wood Flour-Plastic Composites”, Composites: Part A, 41, 15591569 (2010) 10.1016/j.compositesa.2010.07.002Search in Google Scholar

Facca, A., Kortschot, M. T. and Yan, N., “Predicting the Elastic Modulus of Natural Fibre Reinforced Thermoplastics”, Composites: Part A, 37, 16601671 (2006) 10.1016/j.compositesa.2005.10.006Search in Google Scholar

Herrera-Franco, P. J., Valadez-Gonzalez, A., “A Study of the Mechanical Properties of Short Natural-Fiber Reinforced Composites”, Composites: Part B, 36, 597608 (2005) 10.1016/j.compositesb.2005.04.001Search in Google Scholar

Kakroodi, A. R., Bainier, J. and Rodrigue, D., “Mechanical and Morphological Properties of Flax Fiber Reinforced High Density Polyethylene/Recycled Rubber Composites”, Int. Polym. Proc., 27, 196204 (2012) 10.3139/217.2473Search in Google Scholar

Kakroodi, A. R., Rodrigue, D., “Highly Filled Thermoplastic Elastomers from Ground Tire Rubber, Maleated Polyethylene and High Density Polyethylene”, Plast., Rub. Comp.: Macromol. Eng., 42, 115122 (2013) 10.1179/1743289812Y.0000000042Search in Google Scholar

Kakroodi, A. R., Kazemi, Y. and Rodrigue, D., “Mechanical, Rheological, Morphological and Water Absorption Properties of Maleated Polyethylene/Hemp Composites: Effect of Ground Tire Rubber Addition”, Composites: Part B, 51, 337434 (2013) 10.1016/j.compositesb.2013.03.032Search in Google Scholar

Kim, S., Moon, J. B., Kim, G. H. and Ha, C. S., “Mechanical Properties of Polypropylene/Natural Fiber Composites: Comparison of Wood Fiber and Cotton Fiber”, Polym. Test., 27, 801806 (2008) 10.1016/j.polymertesting.2008.06.002Search in Google Scholar

Ku, H., Wang, H., Pattarachaiyakoop, N. and Trada, M., “A Review on the Tensile Properties of Natural Fiber Reinforced Polymer CompositesComposites: Part B, 42, 856873 (2011) 10.1016/j.compositesb.2011.01.010Search in Google Scholar

Kuboki, T., Lee, Y. H., Park, C. B. and Sain, M., “Effects of Styrene-Ethylene-Butylene-Styrene Based Additives on the Mechanical Properties of Rice Hull/polypropylene Composites”, Polym. Eng. Sci., 47, 11481155 (2007) 10.1002/pen.20695Search in Google Scholar

Lei, Y., Wu, Q., Yao, F. and Xu, Y., “Preparation and Properties of Recycled HDPE/natural Fiber Composites”, Composites: Part A, 38, 16641674 (2007) 10.1016/j.compositesa.2007.02.001Search in Google Scholar

Lundstedt, T., Seifert, E., Abramo, L., Thelin, B., Nyström, Å., Pettersen, J. and Bergman, R., “Experimental Design and Optimization”, Chemo. Intel. Lab. Syst., 42, 340 (1998) 10.1016/S0169-7439(98)00065-3Search in Google Scholar

Macsiniuc, A., Rochette, A. and Rodrigue, D., “Understanding the Regeneration of EPDM Rubber Crumbs from Used Tyres”, Prog. Rub. Plast. Recyc. Tech., 26, 5181 (2010)Search in Google Scholar

Macsiniuc, A., Rochette, A. and Rodrigue, D., “Effect of EPDM Particles Size on its Thermo-Mechanical Regeneration”, Prog. Rub. Plast. Recyc. Tech., 28, 4362 (2012)Search in Google Scholar

Mahallati, P. and Rodrigue, D., “Effect of Feeding Strategy on the Mechanical Properties of PP/Recycled EPDM/PP-G-MA Blends”, Int. Polym. Proc., 29, 280286 (2014) 10.3139/217.2855Search in Google Scholar

Mahallati, P., Rodrigue, D., “Effect of Feeding Strategy on the Properties of PP/Recycled EPDM Blends.” Int. Polym. Proc., 30, 276283 (2015) 10.3139/217.3008Search in Google Scholar

Merlini, C., Soldi, V. and Barra, G. M. O., “Influence of Fiber Surface Treatment and Length on Physico-Chemical Properties of Short Random Banana Fiber-Reinforced Castor Oil Polyurethane Composites”, Polym. Test., 30, 833840 (2011) 10.1016/j.polymertesting.2011.08.008Search in Google Scholar

Nair, M. K. C., Diwan, S. M. and Thomas, S., “Tensile Properties of Short Sisal Fiber Reinforced Polystyrene Composites”, J. Appl. Polym. Sci., 60, 14831497 (1996) 10.1002/(SICI)1097-4628(19960531)60-9<1483::AID-APP23>3.0.CO;2-1Search in Google Scholar

Oksman, K., Mathew, A. P., Långström, R., Nyström, B. and Joseph, K., “The Influence of Fibre Microstructure on Fibre Breakage and Mechanical Properties of Natural Fibre Reinforced Polypropylene”, Comp. Sci. Tech., 69, 18471853 (2009) 10.1016/j.compscitech.2009.03.020Search in Google Scholar

Panthapulakkal, S. and Sain, M., “Injection-Molded Short Hemp Fiber/Glass Fiber-Reinforced Polypropylene Hybrid Composites-Mechanical, Water Absorption and Thermal Properties”, J. Appl. Polym. Sci., 103, 24322441 (2007) 10.1002/app.25486Search in Google Scholar

Ramezani Kakroodi, A., Leduc, S. and Rodrigue, D., “Effect of Hybridization and Compatibilization on the Mechanical Properties of Recycled Polypropylene-Hemp Composites”, J. Appl. Polym. Sci., 124, 24942500 (2012) 10.1002/app.35264Search in Google Scholar

Ramezani Kakroodi, A. and Rodrigue, D., “Reinforcement of Maleated Polyethylene/Ground Tire Rubber Thermoplastic Elastomers Using Talc and Wood Flour”, J. Appl. Polym. Sci., 131, 40195 (2014) 10.1002/app.40195Search in Google Scholar

Rawlings, J. O., Pantula, S. G. and Dickey, D. A., “Chapter 7 Model Development: Variable Selection”, in Applied Regression Analysis: A Research Tool, Springer Science & Business Media, New York, p. 205231 (1998)10.1007/0-387-22753-9_7Search in Google Scholar

Ruksakulpiwat, Y., Sridee, J., Suppakarn, N. and Sutapun, W., “Improvement of Impact Property of Natural Fiber-polypropylene Composite by Using Natural Rubber and EPDM Rubber”, Composites: Part B, 40, 619622 (2009) 10.1016/j.compositesb.2009.04.006Search in Google Scholar

Saheb, D. N., Jog, J. P., “Natural Fiber Polymer Composites: A Review”, Adv. Polym. Tech., 18, 351363 (1999) 10.1002/(SICI)1098-2329(199924)18:4<351::AID-ADV6>3.0.CO;2-XSearch in Google Scholar

Tantayanon, S., Juikham, S., “Enhanced Toughening of Poly(propylene) with Reclaimed-Tire Rubber”, J. Appl. Polym. Sci., 91, 510515 (2004) 10.1002/app.13182Search in Google Scholar

Threepopnatkul, P., Kaerkitcha, N. and Athipongarporn, N., “Effect of Surface Treatment on Performance of Pineapple Leaf Fiber-Polycarbonate Composites”, Composites: Part B, 40, 628632 (2009) 10.1016/j.compositesb.2009.04.008Search in Google Scholar

Viksne, A., Berzina, R., Andersone, I. and Belkova, L., “Study of Plastic Compounds Containing Polypropylene and Wood Derived Fillers from Waste of Different Origin”, J. Appl. Polym. Sci., 117, 368377 (2010) 10.1002/app.31479Search in Google Scholar

Received: 2016-01-05
Accepted: 2016-04-11
Published Online: 2016-07-21
Published in Print: 2016-08-12

© 2016, Carl Hanser Verlag, Munich

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