title: Epoxy/Glass Fiber Laminated Composites Integrated with Amino Functionalized ZrO2 for Advanced Structural Applications.
abstract: This work demonstrates the successful silanization of ZrO2 nanoparticles (ZN) and their incorporation in glass fiber/epoxy composites. Microscopic investigation under transmission electron microscope elucidates antiaggregation and size enhancement of silanized ZrO2 nanoparticles (SZNs). FTIR spectroscopy has been used to demonstrate the chemical nature of the SZNs prepared. EDX results reveal the presence of Si onto SZNs. Incorporation of SZNs shows a strong influence on tensile and flexural properties of hybrid multiscale glass fiber composite (SZGFRP) compared to that of the neat epoxy glass fiber composite (GFRP). A significant variation of tensile strength, stiffness, and toughness of ∼27%, 62%, and 110% is observed with respect to GFRP. Strength and modulus under bending are also enhanced to ∼22% and ∼38%, respectively. Failure mechanisms obtained from macroscopic and microscopic investigation demonstrate reduced interfacial delamination for SZGFRP. Additionally, increased roughness of the fiber surface in SZGFRP laminates produces better interfacial bonding arising from SZN incorporation in laminates. This symptomatic behavior exposes the espousal of organically modified ZrO2 to enhance the interfacial bonding for their use in next generation hybrid laminates.
authors.affiliation: Department of Mechanical Engineering, National Institute of Technology Silchar , Silchar 788010, Assam, India.
authors.forename: Sudipta
authors.initials: S
authors.lastname: Halder
authors.affiliation: Department of Mechanical Engineering, National Institute of Technology Silchar , Silchar 788010, Assam, India.
authors.forename: Soyeb
authors.initials: S
authors.lastname: Ahemad
authors.affiliation: Department of Mechanical Engineering, National Institute of Technology Silchar , Silchar 788010, Assam, India.
authors.forename: Subhankar
authors.initials: S
authors.lastname: Das
authors.affiliation: Department of Civil, Construction and Environmental Engineering, College of Engineering, The University of Alabama , Tuscaloosa, Alabama 35401, United States.
authors.forename: Jialai
authors.initials: J
authors.lastname: Wang
keywords: ZrO2 nanoparticles; fracture mechanisms; glass fiber; hybrid laminates; mechanical properties; molecular architecture; morphological analysis; surface silanization