The pull-out behavior of chemically treated lignocellulosic fibers/polymeric matrix interface (LF/PM): A review

摘要

The increase of global concerns about environment and sustainability issues related to the preservation of nonrenewable natural resources has attracted a remarkable interest of the scientific community hoping to develop new eco-friendly materials and products based on natural resources. Indeed, many achievements in biotechnology in the field of materials science and composites have been reported in the literature in the last two decades. One of most studied natural resources is lignocellulosic fibers (LFs). Indeed, LFs present interesting advantages: they are biodegradable, abundant and have many high technical qualities; their important mechanical properties and their low density make them candidates to be used to replace the synthetic fibers. However, they are known to be less compatible with polymeric matrices (PMs) because of their hydrophilic nature and the presence of non-cellulosic materials on their surface preventing the formation of strong covalent bonds in LF/PM interface. The aim of this paper is to present a general review on the effect of the most studied chemical treatments on lignocellulosic fibers (LFs). The structural aspects and properties of lignocellulosic fibers (LFs), the effect of chemical treatment on the LF/PM interface using the pull-out testing method and the mechanical properties of final LF-PM biocomposites are discussed in this review article.