Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/55080
Title: Mechanical properties of chemically-treated hemp fibre reinforced sandwich composites
Authors: Kabir, MM
Wang, H
Lau, KT 
Cardona, F
Aravinthan, T
Keywords: Sandwich
Fibre/matrix bond
Surface treatments
Thermal properties
Mechanical properties
Issue Date: 2012
Publisher: Pergamon Press
Source: Composites. Part B, Engineering, 2012, v. 43, no. 2, p. 159-169 How to cite?
Journal: Composites. Part B, Engineering 
Abstract: In this study, hemp fabrics were used as reinforcements with polyester resin to form composite skins while short hemp fibres with polyester as a core for making composite sandwich structures. To improve the fibre matrix adhesion properties, alkalisation, silane and acetylation treatments on the fibres surface were carried out. Examinations through fourier transform infrared (FTIR) spectroscopy, scanning electron microscope (SEM), differential scanning calorimetry (DSC) and thermogravimetric analysis (TGA) were conducted to investigate the physical and thermal properties of the fibres. Mechanical properties such as flexural and compressive strengths of the sandwich structures made by treated and untreated hemp fibres were studied. Based on the results obtained from the experiments, it was found that the fibre treated with alkalic solution and post-soaked by 8% NaOH exhibited better mechanical strength as compared with other treated and untreated fibre composite samples. Besides, DSC and TGA analysis showed that the thermal stability of all treated fibre was enhanced as compared with untreated samples.
URI: http://hdl.handle.net/10397/55080
ISSN: 1359-8368
EISSN: 1879-1069
DOI: 10.1016/j.compositesb.2011.06.003
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