Effect of thermal condition on isothermal-pressing joined strength of silanized Al alloy/carbon fiber-reinforced polyamide-6

Li, Weihao; Geng, Peihao; Wang, Qian; Ma, Ninshu; Zhao, Shuaijie; Chen, Chuantong

doi:10.1016/j.jmrt.2023.05.043

Cited by 5 publications

(1 citation statement)

References 33 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This modification facilitates a stronger bond at the fiber-matrix interface, leading to improved load transfer and resistance to interlaminar shear stresses. Studies have demonstrated prominent developments in mechanical properties following silane treatment, including increased TS, flexural strength, and impact resistance [21,22].…”

Section: Introductionmentioning

confidence: 99%

Enhancing the mechanical properties of CF-reinforced epoxy composites through chemically surface modification of carbon fibers via novel two-step approach by addition of epichlorohydrin

Tutunchi,

Ghodrati,

Taghizadeh Tabrizi

et al. 2024

Funct. Compos. Struct.

View full text Add to dashboard Cite

The chemical surface modification was carried out in this study to improve the interface connection between carbon fiber and epoxy matrix to study the mechanical and fracture behavior of CF-reinforced epoxy composites. Finite element analysis was carried out by using ABAQUS software to simulate the variation of the tensile strength (TS), interfacial shear strength (IFSS), and interlaminar shear strength (ILSS). The chemical surface modification was carried out by the chemical oxidation by nitric acid and subsequently, addition of monomer resin of epichlorohydrin in a solution at 80 °C. The Raman Spectroscopy, Fourier Transform Infrared Spectroscopy (FT-IR), and Scanning Electron microscopy (SEM) were carried out to ensure the successful surface modification of CFs. Subsequently, surface-modified CF-reinforced epoxy composites were prepared through the hand lay-up method with the volume fraction of 20 wt.%, and curing was carried out at 80 °C for 4 h. The TS, IFSS, and ILSS values equaled 462.82 MPa, 156 MPa, and 4.1 MPa for modified CF/epoxy composites were achieved, respectively, which are improved remarkably compared to unmodified ones (380, 81, and 2.9 MPa). These improvements are attributed to the successful surface modification of CFs by epichlorohydrin. The surface modification causes the increase in wettability of CFs and the formation of mechanical interlocking and interaction between CFs and epoxy matrix was achieved through uniform and homogenous distribution of epichlorohydrin on the surface of CFs. Fractography was carried out, which indicated the sound and uniform adhesion between CF and epoxy matrix. Achieved results are consistent with simulated results.

show abstract

Section: Introductionmentioning

confidence: 99%