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Journals / İmalat Teknolojileri ve Uygulamaları / 2026 / Cilt: 6 Sayı: 1

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

Kısa Karbon Elyaf İçeriğinin Poliüretan Köpük Bazlı Kompozitlerin Mekanik ve Tribolojik Davranışları Üzerindeki Etkisi

Harun Çuğ(KARABÜK ÜNİVERSİTESİ)0000-0002-6322-4269
Wasim Amhemed Gliza Khalıfa(Karabük Üniversitesi)0000-0003-0607-6818
Yasin Akgül(Karabük Üniversitesi)0000-0001-5643-5968
Andinet Kumella Eticha(Addis Ababa Institute of Technology)0000-0001-8401-8125
Pages
89–99
Publication Date
2025-04-30
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

However, it was also revealed that the flexural modulus and tribological properties of the composites enhanced significantly along with the increment of SCFs content.

📌 3 Key Takeaways

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Objective & Hypothesis: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.
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Key Findings & Data:To examine the mechanical properties of neat PU foam and composites (PU-SCF), 3-point bending tests were conducted.
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Conclusion & Impact:However, it was also revealed that the flexural modulus and tribological properties of the composites enhanced significantly along with the increment of SCFs content.
🔬Design:Araştırma Makalesi
📍Scope:Comprehensive Sample
⚙️Variables:Eğilme modülü · Eğilme mukavemeti · Poliüretan

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.

Özet

Bu çalışma, kırpılmış karbon elyafların (SCFs) farklı ağırlık oranlarının (%0,5, %1 ve %1,5) poliüretan köpük (PU) kompozitlerin mekanik ve tribolojik özellikleri üzerindeki etkisini araştırmayı amaçlamaktadır. Numuneler kalıba döküm yöntemi kullanılarak üretilmiştir. Saf poliüretan (PU) köpük ve kompozitlerin (SCFs-PU) mekanik özelliklerini araştırmak için 3 nokta eğme testleri yapılmıştır. Ayrıca, numunelerin aşınma direnci özelliklerini değerlendirmek için 5N yük uygulanılmıştır. Bu çalışmanın sonucu, ağırlıkça %0,5 SCFs içeren PU köpük bazlı kompozitin eğilme mukavemetinin, ağırlıkça %1,5 SCF içeren numuneden yaklaşık %9,46 daha yüksek olduğunu ortaya koymaktadır. Bu nedenle, PU matrisine daha yüksek miktarda SCF eklenmesinin, SCFs-PU köpük kompozitlerinin eğilme özelliklerinde azalma ile sonuçlandığı söylenebilmektedir. Bununla birlikte, saf poliüretana ağırlıkça %1,5 SCF eklenmesi, aşınma direnci özelliğini yaklaşık %78,95 oranında iyileştirmiştir. Sonuç olarak, PU köpüğe eklenen SCFs içeriği arttıkça SCF-PU kompozitlerinin mekanik özelliklerinin azaldığı tespit edilmiştir. Bununla birlikte, kompozitlerin tribolojik özellikleri önemli ölçüde artmaktadır.

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Cite This Article

Çuğ, H., Khalıfa, W. A. G., Akgül, Y., Eticha, A. K. (2025). Effect of Short Carbon Fiber Content on the Mechanical and Tribological Behaviors of Polyurethane Foam-Based Composites. İmalat Teknolojileri ve Uygulamaları, Cilt: 6 Sayı: 1, 89–99. https://doi.org/10.52795/mateca.1585307

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