Volume 47, No 2, 2025, Pages 355-369
Download full text in PDFTribological Advancements in Glass Fabric Epoxy: Effects of Halloysite Nanotubes Additives
Authors:
R. Shivashankar 
Shivaraj R. Dharennavar ,
Meenakshi ,
Balachandra Paramashwaraiah 
,
Geetanjali S. Guggari ,
H.S. Vasanth Kumar ,
T.P. Jeevan
DOI: 10.24874/ti.1820.12.24.03
Received: 12 December 2024
Revised: 18 February 2025
Accepted: 17 March 2025
Published: 15 June 2025
Abstract:
In this study, the effects of halloysite nanotubes (Hnts) on the dry sliding wear behavior and coefficient friction (CoF) of E-glass fabric-reinforced epoxy (G/E) composites will be examined. It aims to identify the ideal Hnts weight percentage for improving the wear performance of G/E composites for demanding applications. In the study, G/E composites with varying Hnts weight percentages (2, 4, and 6) were produced and their tribological characteristics were assessed. Under various load and speed conditions (25 N, 3 m/s to 75 N, 5 m/s), the specific wear rate (SWR) and CoF respectively were measured. To identify wear mechanisms, worn surface micrographs were examined by scanning electron microscopy. In line with the study, adding Hnts to G/E composites greatly increases their resistance to wear and lowers their CoF. The composite with 6 wt % Hnts had the lowest SWR (27.45 × 10-6 mm³/N m), which was 26.4 % lower than the unfilled G/E composite. With CoF values of 0.31 at 25 N, 3 m/s and 0.48 at 75 N, 5 m/s, the 6 wt % Hnts composite had the lowest values. Wear mechanisms for unfilled and Hnts-filled composites are different; unfilled G/E exhibits significant matrix damage, whereas Hnts-filled composites exhibit enhanced transfer film formation, fiber thinning, and matrix protection. This study is unique in that it investigates the use of Hnts as filler in G/E composites. By highlighting the promising properties of Hnts for enhancing the friction performance and wear resistance of epoxy-based composites reinforced with E-glass fabric, it offers fresh perspectives on the possible uses of Hnts in high-performance composite materials.
Keywords:
Glass fabric reinforced epoxy, Hnts, SWR, CoF, Scanning electron microscopy
