Effect of the delignification of wood fibers on the mechanical properties of wood fiber-polypropylene composites

被引：0
|
作者：
Karimi, Alinaghi [1 ]
Nazari, Saleh [1 ]
Ghasemi, Ismaeil [2 ]
Tajvidi, Mehdi [1 ]
Ebrahimi, Ghanbar [1 ]
机构：
[1] Department of Wood and Paper Science and Technology, College of Natural Resources, University of Tehran, Iran
[2] Iran Polymer and Petrochemical Research Institute, Iran
来源：
Journal of Applied Polymer Science | 2006年 / 102卷 / 05期
关键词：
The effect of the delignification of hornbeam fibers on the mechanical properties of wood fiber-polypropylene (PP) composites was studied. Original fibers and delignified fibers at three levels of delignification were mixed with PP at a weight ratio of 40:60 in an internal mixer. Maleic anhydride (0.5 wt %) as the coupling agent and dicumyl peroxide (0.1 wt%) as the initiator were applied. The produced composites were then hot-pressed; and specimens for physical and mechanical testing were prepared. The results of the properties of the composite materials indicate that delignified fibers showed better performance in the enhancement of tensile strength and tensile modulus; whereas the hardness of the composites was unaffected by delignification. Delignified fibers also exhibited better water absorption resistance. Notched impact strength was higher for delignified fiber composites; but it was reduced at higher delignification levels. © 2006 Wiley Periodicals; Inc;
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Journal article (JA)
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页码：4759 / 4763
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