TY - JOUR
T1 - Compressive, dynamic and thermo-mechanical properties of cellulosic pineapple leaf fibre/polyester composites
T2 - Influence of alkali treatment on adhesion
AU - Senthilkumar, K.
AU - Saba, N.
AU - Chandrasekar, M.
AU - Jawaid, M.
AU - Rajini, N.
AU - Siengchin, Suchart
AU - Ayrilmis, Nadir
AU - Mohammad, Faruq
AU - Al-Lohedan, Hamad A.
N1 - Publisher Copyright:
© 2021 Elsevier Ltd
PY - 2021/4
Y1 - 2021/4
N2 - This study presents the influence of fibre treatment and fibre loading on the mechanical, physical, crystalline, and thermal properties of pineapple leaf fibre (PALF) reinforced polyester (PE) composites. Fibre treatment with NaOH modified the fibre surface from smooth to rough and KOH treatment induced fibrillation, as evident from micrographs of the elementary fibres. Fibre surface modification with NaOH helped in improving the fibre-matrix adhesion while it resulted in inferior damping characteristics for the composite. Composites with the KOH treated fibres were found to have superior damping characteristics and poor fibre-matrix adhesion. The compressive strength of composites produced with treated fibres was lower than the composite with untreated fibre and could only be improved with the addition of more fibres. Maximum compressive strength was observed for NaOH and KOH PALF/PE composites with 45 wt% fibre loading. Thermo-mechanical analysis indicated that PALF/PE composite with 45 wt% fibre loading displayed the least dimensional change indicating better dimensional stability. Superior vibration damping, dynamic mechanical and thermomechanical characteristics of the treated PALF/PE make them a promising candidate for applications requiring vibration damping characteristics and dimensional stability.
AB - This study presents the influence of fibre treatment and fibre loading on the mechanical, physical, crystalline, and thermal properties of pineapple leaf fibre (PALF) reinforced polyester (PE) composites. Fibre treatment with NaOH modified the fibre surface from smooth to rough and KOH treatment induced fibrillation, as evident from micrographs of the elementary fibres. Fibre surface modification with NaOH helped in improving the fibre-matrix adhesion while it resulted in inferior damping characteristics for the composite. Composites with the KOH treated fibres were found to have superior damping characteristics and poor fibre-matrix adhesion. The compressive strength of composites produced with treated fibres was lower than the composite with untreated fibre and could only be improved with the addition of more fibres. Maximum compressive strength was observed for NaOH and KOH PALF/PE composites with 45 wt% fibre loading. Thermo-mechanical analysis indicated that PALF/PE composite with 45 wt% fibre loading displayed the least dimensional change indicating better dimensional stability. Superior vibration damping, dynamic mechanical and thermomechanical characteristics of the treated PALF/PE make them a promising candidate for applications requiring vibration damping characteristics and dimensional stability.
KW - Alkali treatment
KW - Coefficient of thermal expansion
KW - Compression strength
KW - Fibre composites
KW - Natural frequency
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U2 - 10.1016/j.ijadhadh.2021.102823
DO - 10.1016/j.ijadhadh.2021.102823
M3 - Article
AN - SCOPUS:85100872582
SN - 0143-7496
VL - 106
JO - International Journal of Adhesion and Adhesives
JF - International Journal of Adhesion and Adhesives
M1 - 102823
ER -