Static Shear Strength of Single-Lap Joint Using EggshellToughened Epoxy as Adhesive Agent

Collin Fong, Collin Fong and Desmond Daniel Chin, Desmond Daniel Chin and Hilton Ahmad, Hilton Ahmad (2023) Static Shear Strength of Single-Lap Joint Using EggshellToughened Epoxy as Adhesive Agent. INTERNATIONAL JOURNAL OF INTEGRATED ENGINEERING, 15 (2). pp. 104-112. ISSN 2600-7916

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Abstract

Eggshells are daily food waste disposed of in landfills, producing environmental issues and an unpleasant odour. Eggshells were crushed to form eggshell powder and may be suitably applied as a filler in epoxy resins to improve their mechanical properties. The shear strength of toughened epoxy with eggshell powder (TEEP) was studied. Single-lap joint (SLJ) shear tests were conducted to investigate the shear strength of the SLJ bonded with different volume fractions of TEEP. For this purpose, the eggshells were dried and crushed into particles of size 150μm. The volume fraction of eggshell powder in the epoxy resin is 0%, 2.5%, 5%, and 10% by epoxy weight. The epoxy resin system was made of EPIKOTE Resin 828 and Hardener 651 with a mixing ratio of 5:2 by weight. The results show that the shear strength greatly depended upon overlap length and filler volume fractions. The improvement was up to 72.7% and 39.9%, with the longest overlap length and 5% TEEP fraction. Hence, an overlap length of 38.1 mm and a 5% eggshell volume fraction gave the optimum shear strength of 5.045 kN.

Item Type:	Article
Uncontrolled Keywords:	Eggshell powder, filler, shear strength, single-lap joint, toughened epoxy
Subjects:	T Technology > T Technology (General)
Divisions:	Faculty of Civil Engineering and Built Environment > Department of Architecture
Depositing User:	Mr. Mohamad Zulkhibri Rahmad
Date Deposited:	03 Jan 2024 01:37
Last Modified:	03 Jan 2024 01:37
URI:	http://eprints.uthm.edu.my/id/eprint/10571

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