Abstract
Aluminate-based coupling agent was added as a compatibilizer to make the chemical modification of wood powder. The mechanical properties and morphology of wood powder/polypropylene composites were studied. The results showed that the compatibilizer can increase the impact strength of the wood/polypropylene composites, but it has a slightly negative effect on the tensile and flexural strength. For dynamic mechanical properties and Differential Scanning Calorimetry, Aluminate-based coupling agent can slightly increase the storage modulus and loss modulus, and decrease the melt point and the Calorie of Melt. Scanning electron microscopy showed that Aluminate-based coupling agent had a stronger affinity between the wood and polypropylene surfaces. These results suggested that Aluminate-based coupling agent may play a useful role in improving wood powder/polypropylene composites properties.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
Berger, M.J. and Stark, N.M. 1997. Investigations of species effects in an injection-molding grade, wood-filled polypropylene [C]. The Fourth International Conference on Woodfiber-plastic Composites, p 19–25.
Flex, J.M. and Gatenholm, P. 1991. The nature of adhesion in composites of modifies cellulose fibers and polypropylene [J]. J. Appl. Poly. Sci.,42, 609–620.
Kazayawoko, M., Balatinecz, J.J. and Matuana, L.M. 1999. Surface modification and adhesion mechanisms in woodfiber-polypropylene composites [J]. J. Mater. Sci.,34(24): 6189–6199.
Fujii, T., Lee, S.J., Kuroda, N. and Suzuki, Y. 2001. Conductive function of intervessel pits through a growth ring boundary of Machilus thunbergii [J]. IAWA J.,22: 1–14.
Hill, C.A.S. and Khalil, H.P.S.A. 2000. Effect of fiber treatment on mechanical properties of coir or oil palm fiber reinforced polyester composites [J]. J. Appl. Poly. Sci.,78: 1685–1697.
Maldas, D., Kokta, B.V. and Daneault, C. 1989a. Influence of coupling agents and treatments on the mechanical properties of cellulose fiber-polystyrene composites [J]. J. Appl. Polym. Sci.,37: 751–775.
Matuana, L.M., Balatinecz, J.J., Sodhi, R.N.S. and Park, C.B. 2001. Surface characterization of esterified cellulosic fibers by XPS and FTIR spectroscopy [J]. Wood Sci and Technol,35(3): 191–201.
Mekenzie, A.W. and Yuritta, J.P. 1979. Wood fibre reinforced polymers [J]. Appita,32(6): 460–465.
Myers, G.E., Chahyadi, I.S., Coberly, C.A. and Ermer, D.S. 1991. Wood flour/polypropylene composites: Influence of maleated polypropylene and process and composition variables on mechanical properties [J]. Intern. J. Poly. Mater.,15: 21–44.
Oksman, K. and Lindberg, H. 1995. Interaction between wood and synthetic polymers [J]. Holzforschung,49: 249–205.
Oksman, K. 1996. Improved interaction between wood and synthetic polymers in wood/polymer composites [J]. Wood Sci. Technol.,30: 197–205.
Oksman, K. and Clemons, C. 1998. Mechanical properties and morphology of impact modified polypropylene-wood flour composites [J]. J. Appl. Polym. Sci.,67: 1503–1513.
Raj, R.G., Kokta, B.V., Maldas, D. and Daneault, C. 1989. Use of wood fibers in thermoplastics. VII. The effect of coupling agents in polyethylene-wood fiber composites [J]. J. Appl. Polym. Sci.,37: 1089–1103.
Stark, N.M., Berger, M.J. 1997. Effect of particle size on properties of wood-flour reinforced polypropylene composites [C]. The Fourth International Conference on Woodfiber-plastic Composites, p 134–143.
Takatani, M., Itoh, H., Ohsugi, S., Kitayama, T., Saegusa, M., Kawai, S. and Okamoto, T. 2000. Effect of lignocellulosic material on the properties of thermoplastic polymer/wood composites [J]. Holzforschung,54: 197–200.
Wu, J.D., Chan, C.M., Kim, J. and Mai, Y.W. 2000. Effect of fiber pretreatment condition on the interfacial strength and mechanical properties of wood fiber/PP composites [J]. J. Appl. Poly. Sci.,76: 1000–1010.
Author information
Authors and Affiliations
Corresponding author
Additional information
Foundation item: This study was supported by Introduce Foreign Advanced Technology Project (2001-1).
Biography: Qin Te-fu (1954-), Male, professor, Research Institute of Wood Industry, Chinese Academy of Forestry, Beijing 100091, P. R. China.
Responsible editor: Song Funan
Rights and permissions
About this article
Cite this article
Te-fu, Q., Luo-hua, H. & Gai-yun, L. Effect of chemical modification on the properties of wood/polypropylene composites. Journal of Forestry Research 16, 241–244 (2005). https://doi.org/10.1007/BF02856824
Received:
Accepted:
Issue Date:
DOI: https://doi.org/10.1007/BF02856824