Influence of Calcination and Cation Exchange (APTES) of Bentonite-Modified Reinforced Basalt/Epoxy Multiscale Composites' Mechanical and Wear Performance: A Comparative Study

In this study, bentonite clay was modified through silane treatment and calcination to enhance its compatibility with basalt fiber (BF) and epoxy in multiscale composites. The as-received bentonite (ARB) was subjected to silane treatment using APTES, producing silane-modified bentonite (STB), while...

Full description

Saved in:
Bibliographic Details
Published in:Materials 2024-09, Vol.17 (19), p.4760
Main Authors: Khandelwal, Saurabh, Dhand, Vivek, Bae, Jaehoon, Kim, Taeho, Kim, Sanghoon
Format: Article
Language:English
Subjects:
Basalt
Bentonite
Cation exchanging
Clay
Comparative studies
Composite materials
Diffraction
Epoxy resins
Ethanol
Fiber composites
Fiber reinforced polymers
Fourier transforms
Friction
Infrared analysis
Interfacial bonding
Mechanical properties
Nanocomposites
Nanoparticles
Polymers
Roasting
Set-top boxes
Silane
Silanes
Spectrum analysis
Surface area
Tensile strength
Tensile tests
Thermal stability
Thermogravimetric analysis
Tribology
Wear
X-rays
Citations: Items that this one cites
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:In this study, bentonite clay was modified through silane treatment and calcination to enhance its compatibility with basalt fiber (BF) and epoxy in multiscale composites. The as-received bentonite (ARB) was subjected to silane treatment using APTES, producing silane-modified bentonite (STB), while calcination yielded calcined bentonite (CB). The modified clays were incorporated into basalt fiber-reinforced epoxy (BFRP) composites, which were fabricated using the vacuum-assisted resin transfer method (VARTM). Analytical techniques, including X-ray diffraction (XRD) and Fourier-transform infrared (FTIR) spectroscopy, confirmed the structural changes in the clays. BET surface area analysis revealed a 314% increase in the surface area of STB and a 176% increase for CB. The modified clays also demonstrated reduced hydrophilicity and swelling behavior. Thermogravimetric analysis (TGA) indicated a minimal improvement in thermal stability, with the degradation onset temperatures increasing by less than 3 °C. However, tensile tests showed significant gains, with CB- and STB-reinforced composites achieving 48% and 21% higher tensile strength than ARB-reinforced composites. Tribological tests revealed substantial reductions in wear, with CB- and STB-reinforced composites showing 90% and 84% decreases in the wear volume, respectively. These findings highlight the potential of modified bentonite clays to improve the mechanical and wear properties of basalt fiber-epoxy composites.
ISSN:1996-1944
1996-1944
DOI:10.3390/ma17194760