The study of fibre/matrix bond strength in short hemp polypropylene composites from dynamic mechanical analysis

Amir Etaati; Selvan Pather; Zhengping Fang; Hao Wang

doi:10.1016/j.compositesb.2014.02.011

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The study of fibre/matrix bond strength in short hemp polypropylene composites from dynamic mechanical analysis

Journal article

Open access

Peer reviewed

The study of fibre/matrix bond strength in short hemp polypropylene composites from dynamic mechanical analysis

Amir Etaati, Selvan Pather, Zhengping Fang and Hao Wang

Composites Part B: Engineering, Vol.62, pp.19-28

2014

DOI: https://doi.org/10.1016/j.compositesb.2014.02.011

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Abstract

polymer-matrix composites (PMCs)

fibre/matrix bond

internal friction/damping

injection moulding

hemp fibre

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 to 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 25-150ËšC under frequency of 1Hz. 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.

Details

Title: The study of fibre/matrix bond strength in short hemp polypropylene composites from dynamic mechanical analysis
Authors: Amir Etaati (Author) - University of Southern Queensland
Selvan Pather (Author) - University of the Sunshine Coast - Faculty of Science, Health, Education and Engineering
Zhengping Fang (Author) - Zhejiang University, China
Hao Wang (Author) - University of Southern Queensland
Publication details: Composites Part B: Engineering, Vol.62, pp.19-28
Publisher: Pergamon
Date published: 2014
DOI: 10.1016/j.compositesb.2014.02.011
ISSN: 1359-8368
Organisation Unit: School of Science and Engineering - Legacy; University of the Sunshine Coast, Queensland; School of Science, Technology and Engineering
Language: English
Record Identifier: 99448823102621
Output Type: Journal article

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Collaboration types: Domestic collaboration; International collaboration
Web Of Science research areas: Engineering, Multidisciplinary; Materials Science, Composites