Compatibility of Natural Fiber and Hydrophobic Matrix in Composite Modification
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Compatibility of natural fiber with hydrophobic matrix is a herculean task in literature works. Part of the concerns may have necessitated the need for modification of natural fiber with chemical treatment in order to evolve composite materials devoid of fiber pull-out, delamination, intralaminar matrix cracking, and other side effects of matrix-fiber interaction. The concept of this chapter is to x-tray the critical reasons behind the fiber disintegration in composite formation which may have allowed matrix susceptible to load-bearing and ultimate failure. Part of the identifiable lapses in the composite formation is generally noticed in the region of fiber absence within the matrix environment which often initiate fiber pull-out mechanism and followed by intense pressure along the fiber environment. In order to reinforce the compatibility of natural fiber and matrix, different approaches have been employed in the literatures. While substantial progress has been made on one part, there appears to be unbroken deficit in the adaptation of natural fiber in some selected applications. The principle of initiation of pull-out which may have occurred as a result of unequal distribution of fiber across the matrix is discussed in details in this work. This chapter provides an in-depth understanding of natural fiber classifications and some of the processing techniques which may have influenced some of these differences. It is expected that this chapter will capture the underlying processing factors which ultimately lead to incompatibility of fiber and the hydrophobic resin.
KeywordsNatural fiber Modifications Compatibility Matrix Reinforcement
The financial assistance of the National Research Foundation(NRF) toward this research is hereby acknowleged. Oppinion expressed and conclusions arrived at, are those of the authors and not necessarily to be attributed to the NRF. Appreciation also goes to the School of Chemical and Metallurgical Engineering, Faculty of Engineering and Built Environment, University of the Witwatersrand, Johannesburg, for providing the platform to conduct this research.
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