Document Type : Research Paper
Authors
- Amir Nourbakhsh 1
- Bohuslav V.Kokta 2
- Abdolrahman Hosseinzadeh 3
- Ahmad Jahan latibari 4
- Abolfazl Kargarfard 5
1 Wood and forest products division, Research Institute of Forests and Rangelands, Agricultural Research Education and Extension Organization (AREEO), Tehran, Iran
2 Ph.D, Professor, Center de recherche an Pates et Papiers, University du Quebec a Trios-Rivieres, C.P. 500 Canada
3 Wood and forest products division, Research Institute of Forests and Rangelands, Agricultural Resear
4 Prof. Islamic Azad University, Karaj, Iran
5 Wood and Forest Products Science Research Division, Research Institute of Forests and Rangelands, Tehran, Iran,
Abstract
This study investigates the effect of maleic anhydride polypropylene (MAPP) addition as a coupling agent at four levels and also the type of cellulosic materials as a reinforcing component on processing and mechanical properties of modified Populus deltoides fiber and flour/ polypropylene composites.
The results indicate that the interfacial bond between reinforcing-fiber/ flour and the matrix show great influence on the mechanical properties of composites. Furthermore it has been demonstrated that the addition of coupling agent during processing significantly improves the mechanical properties of fiber/ flour polypropylene composites. The results of this investigation indicates that the highest the mechanical properties of composites are as follow; The mechanical properties of the poplar fiber with 2% MAPP is higher than poplar flour without MAPP, which proves that the addition of functional group C=O acts as a good bonding agent.
The notched Impact Izod strength value of poplar fiber with 2% MAPP is less than pure PP. But it is higher than other treatments. The results indicate that the interfacial bond between reinforcing fibers and flour with polymer matrix modified MAPP play a significant role in improving the measured mechanical properties of the composites.
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