Effects of Adhesive Type and Surface Preparation on the Mechanical Strength of Thermoplastic and CFRP Structures
Küçük Resim Yok
Tarih
2025
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Erişim Hakkı
info:eu-repo/semantics/openAccess
Özet
Composite materials are widely used in industries for their lightweight, durability, and flexibility. Carbon fiber-reinforced composites are particularly demanded and used in aerospace, automotive, and space industries due to their high strength and low weight. They are also critical in manufacturing high-pressure hydrogen storage tanks, where the interfacial strength between thermoplastic and thermoset materials is crucial. This study investigates the effects of adhesive type and surface preparation on the mechanical strength of carbon fiber-reinforced composites bonded with high-density polyethylene (HDPE). Tensile tests were performed according to ASTM D5868, and scanning electron microscope (SEM) analyses were conducted to evaluate damage mechanisms. The results show that, DP 190-120 demonstrated the highest performance, providing a 108% higher shear stress (25 MPa) compared to other adhesives. In epoxy-bonded joints, the maximum shear stress (12 MPa) was observed in sample E-240. This value corresponds to only 48% of the performance of DP 190-240. Among the joints made with DP 460, DP 460- 180 showed the best performance. However, with only 2.1 MPa shear stress, it reached just 8.4% of the performance of DP 190-180. These findings contribute to enhancing the safety of Type-IV hydrogen tanks and developing more reliable bonding methods for industrial applications.
Açıklama
Anahtar Kelimeler
Mechanical strength, Composite, thermoset, adhesive type, thermoplastic, surface preparation
Kaynak
Gazi Üniversitesi Fen Bilimleri Dergisi Part C: Tasarım ve Teknoloji
WoS Q Değeri
Scopus Q Değeri
Cilt
13
Sayı
2
