Pre-treatment of Flax Fibers for use in Rotationally Molded Biocomposites
- 1 March 2007
- journal article
- research article
- Published by SAGE Publications in Journal of Reinforced Plastics and Composites
- Vol. 26 (5), 447-463
- https://doi.org/10.1177/0731684406072526
Abstract
The objective of this study was to determine the effects of pre-treated flax fibers on the performance of the fiber-reinforced composites. Lack of good interfacial adhesion and poor resistance to moisture absorption make the use of natural fiber-reinforced composites less attractive. In order to improve fiber/matrix interfacial properties, fibers were subjected to chemical treatments, namely, mercerization, silane treatment, benzoylation, and peroxide treatment. Selective removal of non-cellulosic compounds constitutes the main objective of the chemical treatments of flax fibers to improve the performance of fiber-reinforced composites. Flax fibers were derived from Saskatchewan-grown flax straws. Composites consisting of high-density polyethylene (HDPE) or linear low-density polyethylene (LLDPE) or HDPE/LLDPE mix, chemically treated fibers and additives were prepared by the extrusion process. The test samples were prepared by rotational molding. The fiber surface morphology and the tensile fracture surfaces of the composites were characterized by scanning electron microscopy (SEM). The effects of the different chemical treatments on the mechanical and the physical properties of natural fiber-reinforced composites were investigated. The differential scanning calorimetry (DSC) was used to measure the melting point of the fiber-reinforced composites.Keywords
This publication has 13 references indexed in Scilit:
- The influence of chemical surface modification on the performance of sisal‐polyester biocompositesPolymer Composites, 2002
- Potentiality of Pineapple Leaf Fibre as Reinforcement in PALF-Polyester Composite: Surface Modification and Mechanical PerformanceJournal of Reinforced Plastics and Composites, 2001
- Surface modifications of natural fibers and performance of the resulting biocomposites: An overviewComposite Interfaces, 2001
- Biofibres, biodegradable polymers and biocomposites: An overviewMacromolecular Materials and Engineering, 2000
- Chemical modification of henequén fibers with an organosilane coupling agentComposites Part B: Engineering, 1999
- Applications of an azide sulfonyl silane as elastomer crosslinking and coupling agentJournal of Applied Polymer Science, 1997
- Tensile properties of short sisal fiber reinforced polystyrene compositesJournal of Applied Polymer Science, 1996
- The silane/sizing composite interphasePolymer Composites, 1993
- Dicumyl peroxide‐modified cellulose/LLDPE compositesJournal of Applied Polymer Science, 1990
- The silane interphase of composites: Effects of process conditions on γ‐aminopropyltriethoxysilanePolymer Composites, 1986