Scopus
YÖKSİS Eşleşti
Coating graphene nanoplatelets onto carbon fabric with controlled thickness for improved mechanical performance and EMI shielding effectiveness of carbon/epoxy composites
Engineering Fracture Mechanics · Mayıs 2023
YÖKSİS Kayıtları
Coating graphene nanoplatelets onto carbon fabric with controlled thickness for improved mechanical performance and EMI shielding effectiveness of carbon/epoxy composites
Engineering Fracture Mechanics · 2023 SCI-Expanded
DOÇENT HASAN ULUS →
Makale Bilgileri
DergiEngineering Fracture Mechanics
Yayın TarihiMayıs 2023
Cilt / Sayfa284
Scopus ID2-s2.0-85153574003
Özet
Coating nanostructures on fiber reinforcement is a facile and scalable technique to manufacture next-generation fiber-reinforced polymer composites with tailored physical properties. Optimizing the nanomaterial coating thickness on fibers is vital in tailoring the multifunctionality of fiber-reinforced composites without sacrificing the mechanical performance since it relies on the fiber–matrix interface, where interlaminar and other physical properties are governed. This paper investigates the impact of graphene nanoparticle (GNP) coating thickness on the mechanical properties, fracture behavior, thermo-mechanical, and electromagnetic interference (EMI) shielding effectiveness (SE) of composite structures. We grafted GNPs on carbon fabrics using a solution coating method with various thicknesses (10, 20, and 30 µm), and GNPs grafted fabrics were impregnated with an epoxy resin. The 20 µm GNPs coating thickness exhibited the highest mechanical performance, increasing the tensile and interlaminar shear strength by 32% and 26%, respectively, compared to pristine samples. Storage modulus and transition (Tg) temperature values increased by 18.6% and 13.6% for 20 µm coating thickness, respectively. Besides, the unstable crack growth at the fiber–matrix interface was stabilized when the GNPs coating thickness reached 20 µm according to delamination toughness tests. While mode-I fracture toughness increased up to 22%, an improvement of 13.5% was obtained in mode-II fracture toughness. The underlying toughening mechanisms at the interfacial region were identified using scanning electron microscopy. The EMI-SE was slightly increased by the GNPs grafting, whereas thinner GNPs coatings exhibited higher shielding efficiency.
Yazarlar (4)
1
Gökhan Mutlu
2
Ferhat Yıldırım
3
Hasan Ulus
ORCID: 0000-0001-8591-8993
4
Volkan Eskizeybek
Anahtar Kelimeler
Composites
EMI-SE
Fracture toughness
Graphene
Mechanical properties
Nanoparticles
Kurumlar
Çanakkale Onsekiz Mart Üniversitesi
Canakkale Turkey
Sabancı Üniversitesi
Tuzla Turkey
Selçuk Üniversitesi
Selçuklu Turkey
Metrikler
11
Atıf
4
Yazar
6
Anahtar Kelime