Toggle Main Menu Toggle Search

Open Access padlockePrints

Thermal behaviour and dynamic mechanical analysis of Pennisetum purpureum/glass-reinforced epoxy hybrid composites

Lookup NU author(s): Professor Geoff Gibson


Full text for this publication is not currently held within this repository. Alternative links are provided below where available.


The thermal behaviour and dynamic mechanical analysis of Pennisetum purpureum/glass-reinforced hybrid composites were investigated. Hybrid composite laminates were fabricated using untreated, 5%, or 10% alkali-treated P. purpureum fibres with woven E-glass fibres and epoxy resin. The composites were manufactured using a vacuum infusion process; the volume fractions of the P. purpureum, glass fibre, and epoxy resin were 24%, 6%, and 70%, respectively. Thermogravimetric analysis (TGA) demonstrated that the amount of residue of the hybrid composites decreased as the concentration of the alkali used to treat the P. purpureum fibres increased. The glass transition temperature values of the neat epoxy, and hybrid composites with the untreated, 5%, and 10% alkali-treated P. purpureum fibres were 64, 64, 67, and 63 degrees C, respectively as determined by dynamic mechanical analysis (DMA). When tested at room temperature (RT), the maximum tensile and flexural strengths were recorded for the hybrid composites with the 5% alkali-treated P. purpureum fibres. At > 60 degrees C, as the temperature approached T-g, debonding of the fibre and matrix occurred, which resulted in a reduction of the tensile and flexural strengths. The fractured surface morphologies of the samples indicated that improved fibre-matrix interfacial bonding was achieved for the 5% alkali-treated P. purpureum/glass hybrid composites. (C) 2016 Elsevier Ltd. All rights reserved.

Publication metadata

Author(s): Ridzuan MJM, Majid MSA, Afendi M, Mazlee MN, Gibson AG

Publication type: Article

Publication status: Published

Journal: Composite Structures

Year: 2016

Volume: 152

Pages: 850-859

Print publication date: 15/09/2016

Online publication date: 14/06/2016

Acceptance date: 13/06/2016

ISSN (print): 0263-8223

ISSN (electronic): 1879-1085

Publisher: Elsevier Science Ltd.


DOI: 10.1016/j.compstruct.2016.06.026


Altmetrics provided by Altmetric


Funder referenceFunder name
Universiti Malaysia Perlis
9003-00515Ministry of Education, Malaysia (FRGS)