The study of fibre/matrix bond strength in short hemp polypropylene composites from dynamic mechanical analysis
Article
Article Title | The study of fibre/matrix bond strength in short hemp polypropylene composites from dynamic mechanical analysis |
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ERA Journal ID | 4883 |
Article Category | Article |
Authors | Etaati, Amir (Author), Pather, Selvan (Author), Fang, Zhengping (Author) and Wang, Hao (Author) |
Journal Title | Composites Part B: Engineering |
Journal Citation | 62, pp. 19-28 |
Number of Pages | 10 |
Year | 2014 |
Publisher | Elsevier |
Place of Publication | Kidlington, OX. United Kingdom |
ISSN | 1359-8368 |
Digital Object Identifier (DOI) | https://doi.org/10.1016/j.compositesb.2014.02.011 |
Web Address (URL) | http://www.sciencedirect.com/science/article/pii/S1359836814000882 |
Abstract | This paper presents results from an experimental study on the static and dynamic mechanical and viscoelastic properties of short hemp fibre polypropylene composites. Composites containing 10–60 wt.% short noil hemp fibre were injection moulded. The maleic anhydride grafted polypropylene (MAPP) and maleic anhydride grafted Poly(ethylene octane) (MAPOE) were used as coupling agents for modifying the matrices. Dynamic mechanical thermal analysis (DMTA) of the composites were performed over a temperature range of 25–150°C under frequency of 1 Hz. DMTA revealed no noticeable changes in α-transition temperature when the fibre content was increased or coupling agents were added. The composites revealed better temperature resistance at higher fibre content. However, the increase in storage modulus was negligible in composites reinforced with more than 40 wt.% hemp fibres; due to the agglomeration of the fibres. The results of the damping ratio analysis revealed that higher interfacial bonding was achieved by addition of MAPP coupling agent in comparison with addition of MAPOE coupling agent. This was also confirmed by tensile strength experiments and scanning electron microscope (SEM) observations. |
Keywords | polymer–matrix composites (PMCs); fibre/matrix bond; internal friction/damping; injection moulding; hemp fibre |
ANZSRC Field of Research 2020 | 401602. Composite and hybrid materials |
401413. Textile technology | |
401706. Numerical modelling and mechanical characterisation | |
Public Notes | Files associated with this item cannot be displayed due to copyright restrictions. |
Byline Affiliations | Centre of Excellence in Engineered Fibre Composites |
Zhejiang University, China | |
Institution of Origin | University of Southern Queensland |
https://research.usq.edu.au/item/q254x/the-study-of-fibre-matrix-bond-strength-in-short-hemp-polypropylene-composites-from-dynamic-mechanical-analysis
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