Moisture Absorption and Thermal Properties of Unidirectional Pineapple Leaf Fibre/Polylactic Acid Composites under Hygrothermal Ageing Conditions

Authors

  • Zaleha Mustafa Fakulti Kejuruteraan Pembuatan, Universiti Teknikal Malaysia Melaka, Hang Tuah Jaya, 76100 Durian Tunggal, Melaka, Malaysia
  • Anira Shahidah Razali Fakulti Kejuruteraan Pembuatan, Universiti Teknikal Malaysia Melaka, Hang Tuah Jaya, 76100 Durian Tunggal, Melaka, Malaysia
  • Thavinnesh Kumar Rajendran Fakulti Kejuruteraan Pembuatan, Universiti Teknikal Malaysia Melaka, Hang Tuah Jaya, 76100 Durian Tunggal, Melaka, Malaysia
  • Siti Hajar Sheikh Md Fadzullah Fakulti Kejuruteraan Mekanikal, Universiti Teknikal Malaysia Melaka, Hang Tuah Jaya, 76100 Durian Tunggal, Melaka, Malaysia
  • Sivakumar Dhar Malingam Fakulti Kejuruteraan Mekanikal, Universiti Teknikal Malaysia Melaka, Hang Tuah Jaya, 76100 Durian Tunggal, Melaka, Malaysia
  • Toibah Abd Rahim Fakulti Kejuruteraan Pembuatan, Universiti Teknikal Malaysia Melaka, Hang Tuah Jaya, 76100 Durian Tunggal, Melaka, Malaysia
  • Thanate Ratanawilai Department of Industrial and Manufacturing Engineering, Faculty of Engineering, Prince of Songkla University, Hat Yai, 90112 Songkhla, Thailand

DOI:

https://doi.org/10.37934/arfmts.96.2.6573

Keywords:

Polylactic acid, pineapple leaf fibre, hygrothermal ageing, hydrolytic degradation, natural fibre, polymer composite

Abstract

In this study, the effect of fibre content on moisture absorption and thermal properties of pineapple leaf fibre (PALF) reinforced polylactic acid (PLA) at elevated temperature and humidity was assessed. The unidirectional PALF/PLA composites were fabricated by using pre-pregging technique and compressed moulded to produce composites with two fibre loadings (40 and 60 wt. %). The composite was saturated in a humidity chamber that contains 90% relative humidity at 50°C for 30 days. The effect of different fibre loading on moisture absorption was measured through moisture uptake. Their thermal stability and thermal characteristic were evaluated by using thermal gravimetric analysis (TGA) and differential scanning analysis (DSC). The result showed that moisture absorption increases with the increase of fibre content and follows Fickian Law. The presence of PALF reduces the initial thermal degradation of the neat PLA as well as promoted the crystallization of the PLA.  Upon exposure to the high temperature and humidity, the value glass transition temperature (Tg) and melting temperature (Tm) of the neat PLA and PALF/PLA composites shifted to the lower temperature possibly due to hydrolytic degradation in the composite structure.

Author Biographies

Zaleha Mustafa, Fakulti Kejuruteraan Pembuatan, Universiti Teknikal Malaysia Melaka, Hang Tuah Jaya, 76100 Durian Tunggal, Melaka, Malaysia

zaleha@utem.edu.my

Anira Shahidah Razali, Fakulti Kejuruteraan Pembuatan, Universiti Teknikal Malaysia Melaka, Hang Tuah Jaya, 76100 Durian Tunggal, Melaka, Malaysia

shahidahanira@gmail.com

Thavinnesh Kumar Rajendran, Fakulti Kejuruteraan Pembuatan, Universiti Teknikal Malaysia Melaka, Hang Tuah Jaya, 76100 Durian Tunggal, Melaka, Malaysia

kumarthavinnesh@gmail.com

Siti Hajar Sheikh Md Fadzullah, Fakulti Kejuruteraan Mekanikal, Universiti Teknikal Malaysia Melaka, Hang Tuah Jaya, 76100 Durian Tunggal, Melaka, Malaysia

hajar@utem.edu.my

Sivakumar Dhar Malingam, Fakulti Kejuruteraan Mekanikal, Universiti Teknikal Malaysia Melaka, Hang Tuah Jaya, 76100 Durian Tunggal, Melaka, Malaysia

sivakumard@utem.edu.my

Toibah Abd Rahim, Fakulti Kejuruteraan Pembuatan, Universiti Teknikal Malaysia Melaka, Hang Tuah Jaya, 76100 Durian Tunggal, Melaka, Malaysia

toibah@utem.edu.my

Thanate Ratanawilai, Department of Industrial and Manufacturing Engineering, Faculty of Engineering, Prince of Songkla University, Hat Yai, 90112 Songkhla, Thailand

thanate.r@psu.ac.th

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Published

2022-06-17

How to Cite

Zaleha Mustafa, Anira Shahidah Razali, Thavinnesh Kumar Rajendran, Sheikh Md Fadzullah, S. H., Sivakumar Dhar Malingam, Toibah Abd Rahim, & Thanate Ratanawilai. (2022). Moisture Absorption and Thermal Properties of Unidirectional Pineapple Leaf Fibre/Polylactic Acid Composites under Hygrothermal Ageing Conditions. Journal of Advanced Research in Fluid Mechanics and Thermal Sciences, 96(2), 65–73. https://doi.org/10.37934/arfmts.96.2.6573

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