Kabir, M. M. and Wang, H. and Lau, K. T. and Cardona, F. and Aravinthan, T. (2012) Mechanical properties of chemically-treated hemp fibre reinforced sandwich composites. Composites Part B: Engineering, 43 (2). pp. 159-169. ISSN 1359-8368
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Official URL: http://www.sciencedirect.com/science/article/pii/S1359836811002642
Identification Number or DOI: doi:10.1016/j.compositesb.2011.06.003
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.
| Item Type: | Article (Commonwealth Reporting Category C) |
|---|---|
| Additional Information: | Permanent restricted access to published version due to publisher copyright policy. |
| Uncontrolled Keywords: | sandwich; fibre/matrix bond; surface treatments; thermal properties; mechanical properties |
| Fields of Research (FOR2008): | 01 Mathematical Sciences > 0101 Pure Mathematics > 010106 Lie Groups, Harmonic and Fourier Analysis 09 Engineering > 0912 Materials Engineering > 091209 Polymers and Plastics 09 Engineering > 0913 Mechanical Engineering > 091307 Numerical Modelling and Mechanical Characterisation |
| Subjects: | UNSPECIFIED |
| Socio-Economic Objective (SEO2008): | D Environment > 96 Environment > 9606 Environmental and Natural Resource Evaluation > 960699 Environmental and Natural Resource Evaluation not elsewhere classified |
| ID Code: | 20446 |
| Deposited By: | |
| Deposited On: | 06 Aug 2012 19:02 |
| Last Modified: | 12 Sep 2012 15:04 |
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