Influence of carbon nanotubes on physical and mechanical properties of polypropylene/reed flour hybrid nano WPC

Authors : Seyyed Khalil Hosseinihashemi, Maryam Jamshidi, Behzad Kord, Eshmaiel Ganjian, Ahmad Ehsani, Nadir Ayrilmis

Pages : 236-248

Doi:10.33725/mamad.1746707

View : 89 | Download : 155

Publication Date : 2025-12-16

Article Type : Research Paper

Abstract :This study investigated the effect of incorporating multi-walled carbon nanotubes (MWCNTs) into polypropylene/reed flour (PP/RF) composites, aiming to enhance their mechanical and physical performance. Composites were prepared using various MWCNT concentrations (0, 1, 2, 3, and 5 phr) and characterized through mechanical testing, water absorption analysis, and scanning electron microscopy (SEM). The addition of MWCNTs significantly improved flexural and tensile properties, with peak tensile strength observed at 2 phr (approximately 15% higher than the control) and maximum flexural strength at 3 phr (approximately 15% higher). Impact resistance was also highest at 2 phr (around 10% increase compared to control). Although mechanical performance declined at 5 phr due to MWCNT agglomeration, this formulation exhibited the lowest water absorption (approximately 12% reduction) and thickness swelling, indicating improved hydrophobicity. SEM micrographs confirmed better filler dispersion at lower concentrations and agglomerate formation at higher loadings. The results highlight the reinforcing potential of MWCNTs, particularly at 2-3 phr, in improving both structural strength and moisture resistance.
Keywords : Polipropilen/kamış unu (PP/KU) kompozitleri, çok katmanlı karbon nanotüpler, çekme ve eğilme dayanımı, darbe direnci, nem emilimi, kalınlık şişmesi

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