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Dergiler / Black Sea Journal of Engineering and Science / 2026 / Cilt: 9 Sayı: 4

Basalt Fiber-Reinforced Recycled Polypropylene Composites: Adhesive Joints and Aging Performance

Emine Feyza Şükür(SAMSUN ÜNİVERSİTESİ)0000-0003-2644-880X
Muhammet Kızıltaş(SAMSUN ÜNİVERSİTESİ)0009-0000-3102-4118
Beyza Gizem Duman(Poelsan Plastic Industry and Trade Inc.)0009-0004-9045-8142
Murat Kuru(Poelsan Plastic Industry and Trade Inc.)0009-0005-3283-3458
Hülya Alaca(Poelsan Plastic Industry and Trade Inc.)0009-0004-0588-1633
Yavuz Turan(Poelsan Plastic Industry and Trade Inc.)0000-0001-8537-3989
Sayfa
1613–1621
Yayın Tarihi
2026-07-15
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⚡ TL;DR(1 Cümlede Hızlı Çıkarım)

Although limited ductile deformation features were observed within the adhesive layer, they did not contribute to an improvement in the macroscopic deformation capacity, as premature interfacial failure governed the global response.

📌 3 Maddede Bu Makale

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Amaç & Hipotez:This study investigates the aging-induced interfacial degradation mechanisms in adhesively bonded single-lap joints (SLJs) fabricated from basalt fiber-reinforced recycled polypropylene (BF/rPP) composites derived from waste materials, with particular emphasis on linking microstructural damage evolution to macroscopic mechanical response.
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Temel Bulgular & Veri:The novelty of the work lies in combining a sustainable BF/rPP system with a systematic correlation among environmental aging, failure morphology, and mechanical performance.
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Sonuç & Katkı:Although limited ductile deformation features were observed within the adhesive layer, they did not contribute to an improvement in the macroscopic deformation capacity, as premature interfacial failure governed the global response.
🔬Tür:Araştırma Makalesi
📍Kapsam:Genişletilmiş Akademik Örneklem
⚙️Değişkenler:Basalt fiber · Recycled polypropylene · Adhesive bonding

Özet

This study investigates the aging-induced interfacial degradation mechanisms in adhesively bonded single-lap joints (SLJs) fabricated from basalt fiber-reinforced recycled polypropylene (BF/rPP) composites derived from waste materials, with particular emphasis on linking microstructural damage evolution to macroscopic mechanical response. The novelty of the work lies in combining a sustainable BF/rPP system with a systematic correlation among environmental aging, failure morphology, and mechanical performance. Epoxy-bonded joints were subjected to unaged, UV-aged, and hydrothermally aged conditions to simulate accelerated environmental exposure. Tensile testing was used to evaluate mechanical behavior, while scanning electron microscopy (SEM) was employed to identify failure mechanisms. The unaged joints exhibited the highest load-bearing capacity (5732 N) and deformation capability (3.8 mm), governed by cohesive failure, indicating efficient stress transfer across a well-integrated adhesive interface. UV exposure caused only limited reductions in strength (~3%) and displacement (~8%), whereas SEM observations revealed the onset of interfacial degradation accompanied by mixed failure features, including cohesive regions and localized interfacial separation, reflecting early-stage weakening of the adhesive–adherend interface. In contrast, hydrothermal aging resulted in a more pronounced reduction in strength (~16%), governed by moisture- and temperature-induced interfacial degradation. This condition promoted unstable crack propagation through weakened interfacial regions, accompanied by fiber–matrix debonding and localized matrix softening. Although limited ductile deformation features were observed within the adhesive layer, they did not contribute to an improvement in the macroscopic deformation capacity, as premature interfacial failure governed the global response.

Abstract

This study investigates the aging-induced interfacial degradation mechanisms in adhesively bonded single-lap joints (SLJs) fabricated from basalt fiber-reinforced recycled polypropylene (BF/rPP) composites derived from waste materials, with particular emphasis on linking microstructural damage evolution to macroscopic mechanical response. The novelty of the work lies in combining a sustainable BF/rPP system with a systematic correlation among environmental aging, failure morphology, and mechanical performance. Epoxy-bonded joints were subjected to unaged, UV-aged, and hydrothermally aged conditions to simulate accelerated environmental exposure. Tensile testing was used to evaluate mechanical behavior, while scanning electron microscopy (SEM) was employed to identify failure mechanisms. The unaged joints exhibited the highest load-bearing capacity (5732 N) and deformation capability (3.8 mm), governed by cohesive failure, indicating efficient stress transfer across a well-integrated adhesive interface. UV exposure caused only limited reductions in strength (~3%) and displacement (~8%), whereas SEM observations revealed the onset of interfacial degradation accompanied by mixed failure features, including cohesive regions and localized interfacial separation, reflecting early-stage weakening of the adhesive–adherend interface. In contrast, hydrothermal aging resulted in a more pronounced reduction in strength (~16%), governed by moisture- and temperature-induced interfacial degradation. This condition promoted unstable crack propagation through weakened interfacial regions, accompanied by fiber–matrix debonding and localized matrix softening. Although limited ductile deformation features were observed within the adhesive layer, they did not contribute to an improvement in the macroscopic deformation capacity, as premature interfacial failure governed the global response.

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Bu Makaleye Atıf Yap

Şükür, E. F., Kızıltaş, M., Duman, B. G., Kuru, M., Alaca, H., Turan, Y. (2026). Basalt Fiber-Reinforced Recycled Polypropylene Composites: Adhesive Joints and Aging Performance. Black Sea Journal of Engineering and Science, Cilt: 9 Sayı: 4, 1613–1621. https://doi.org/10.34248/bsengineering.1773409

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