Journal
MATERIALS
Volume 15, Issue 16, Pages -Publisher
MDPI
DOI: 10.3390/ma15165587
Keywords
hemp fibre; natural fibre composites; high fibre content; mechanical properties
Categories
Funding
- University of Waikato
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The main goal of this study was to improve the mechanical performance of polypropylene (PP) matrix composites through high hemp fiber content. Decreasing the overall thickness of fiber mats within the stacking arrangements improved the fiber wetting and therefore enhanced the tensile properties. The strongest composite had a fiber content of about 60 wt% and showed significantly higher tensile strength and Young's modulus compared to the control samples.
The main goal of this study was to improve the mechanical performance of polypropylene (PP) matrix composites through high hemp fibre content. In order to achieve high fibre content, the possibilities of different polymer sheet thicknesses and stacking arrangements were investigated. It was found that decreasing the overall thickness of fibre mats between two polymer sheets within the stacking arrangements of composites and so decreasing the distance the polymer needs to travel improved the fibre wetting and therefore improved the tensile properties. The strongest composite produced had a fibre content of about 60 wt%. At this fibre content, tensile strength and Young's modulus of the composites were found to be 3.0 and 6.9 times, respectively, higher than the control samples (polymer only samples), while figures for flexural strength and flexural modulus were 3.4 and 3.6, respectively.
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