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Title: Tensile properties of wood flour/kenaf fiber polypropylene hybrid composites

Source: Journal of Applied Polymer Science, Vol. 105, 3054-3059 (2007)

Author(s)Mirbagheri, Tajvidi, Hermanson, Ghasemi

Publication Year: 2007  View PDF »

Category: Journal Articles

Abstract: Hybrid composites of wood flour/kenaf fiber and polypropylene were prepared at a fixed fiber to plastic ratio of 40 : 60 and variable ratios of the two reinforcements namely 40 : 0, 30 : 10, 20 : 20, 10 : 30, and 0 : 40 by weight. Polypropylene was used as the polymer matrix, and 40-80 mesh kenaf fiber and 60-100 mesh wood flour were used as the fiber and the particulate reinforcement, respectively. Maleic anhydride and dicumyl peroxide were also used as the coupling agent and initiator, respectively. Mixing process was carried out in an internal mixer at 1808Cat 60 rpm. ASTM D 638 Type I tensile specimens of the composites were produced by injection molding. Static tensile tests were performed to study the mechanical behavior of the hybrid composites. The hybrid effect on the elastic modulus of the composites was also investigated using the rule of hybrid mixtures and Halpin-Tsai equations. The relationship between experimental and predicted values was evaluated and accuracy estimation of the models was performed. The results indicated that while nonhybrid composites of kenaf fiber and wood flour exhibited the highest and lowest modulus values respectively, the moduli of hybrid composites were closely related to the fiber to particle ratio of the reinforcements. Rule of hybrid mixtures equation was able to predict the elastic modulus of the composites better than Halpin-Tsai equation. - 2007 Wiley Periodicals, Inc. J Appl Polym Sci 105: 3054 -3059, 2007

Keywords: Thermoplastic composites; mechanical properties; flexure; kenaf; composite materials; modulus of elasticity; elasticity; fiber-reinforced plastics; wood plastic composites; maleic anhydride; equations; injection molding of plastics; dicumyl peroxide; wood-plastic materials; tensile strength; hybrid composites; kenaf fiber; wood flour; polypropylene; rule of hybrid mixtures; Halpin-Tsai equation; elastic modulus

File size: 503 kb(s)

Date posted: 06/18/2009

This publication is also viewable on Treesearch:  view
RITS Product ID: 27935
Current FPL Scientist associated with this product
Hermanson, John C.
Research General Engineer

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