Effect of Short Carbon Fiber Content on the Mechanical and Tribological Behaviors of Polyurethane Foam-Based Composites

Authors : Harun Çuğ, Wasim Amhemed Gliza Khalıfa, Yasin Akgül, Andinet Kumella Eticha

Pages : 89-99

Doi:10.52795/mateca.1585307

View : 63 | Download : 149

Publication Date : 2025-04-30

Article Type : Research Paper

Abstract :This study aims to investigate the effect of different weight fractions (0.5, 1.0, and 1.5%) of short carbon fibers (SCFs) on the mechanical and tribological properties of polyurethane (PU) foam composites. The samples were fabricated using the hand lay-up method. To examine the mechanical properties of neat PU foam and composites (PU-SCF), 3-point bending tests were conducted. Moreover, a 5 N load was applied to assess the wear resistance properties of samples. The result of this study revealed that the flexural strength of PU0.5SCF composite was higher than PU1.5SCF nearly by 9.46%. Whereas, the addition of 1.5% mass fractions of SCFs onto neat PU have improved the wear resistance property by 78.95%. Moreover, the study showed that incorporating higher contents of SCFs into neat PU resulted in a direct increment in the flexural modulus of the composite. Therefore, the study confirmed that as the addition of SCFs into PU increases, the flexural strength of PU-SCF composites decreases. This was explained by the poor dispersion of SCFs into the PU matrix. However, it was also revealed that the flexural modulus and tribological properties of the composites enhanced significantly along with the increment of SCFs content.
Keywords : Eğilme modülü, Eğilme mukavemeti, Poliüretan, Kısa karbon fiber, Aşınma

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