COMPARATIVE ANALYSIS OF MOE AND MOR OF PF AND MUF-BONDED EUCALYPTUS PLYWOOD OF VARYING THICKNESS. Short notes

Seidu, Haruna and Bejó, László and Németh, Róbert (2025) COMPARATIVE ANALYSIS OF MOE AND MOR OF PF AND MUF-BONDED EUCALYPTUS PLYWOOD OF VARYING THICKNESS. Short notes. WOOD RESEARCH, 70 (3). pp. 478-486. ISSN 1336-4561

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Abstract

This study assesses the mechanical characteristics of eucalyptus plywood produced in Ghana, particularly focusing on how panel thickness (9–21 mm) and adhesive type (phenol formaldehyde (PF), and melamine urea formaldehyde (MUF) influence the modulus of elasticity (MOE) and modulus of rupture (MOR) of the panels. The panels were tested according to EN 310: 1993. The results indicate that mechanical strength and thickness are inversely correlated, with thinner panels exhibiting superior performance. MOR decreased from 59.85 N/mm² to 39.36 N/mm² for PF-bonded plywood, while longitudinal MOE declined from 7096 N/mm² (9 mm) to 4627 N/mm² (21 mm). Although their values were lower (from 6093 N/mm² to 4155 N/mm²), the MUF-bonded panels demonstrated comparable trends. Significant differences based on orientation were confirmed by ANOVA analysis (p < 0.01), showing that longitudinal samples significantly recorded higher values than transverse ones, particularly in thinner panels. Thicker panels exhibited less anisotropy due to stress homogenization, but PF adhesives provided greater mechanical stability compared to MUF.

Tudományterület / tudományág

engineering and technology > agricultural engineering
engineering and technology > material sciences and technologies
engineering and technology > wood industry
engineering and technology > mechanical engineering

Faculty

Not relevant

Institution

Soproni Egyetem

Item Type:	Article
SWORD Depositor:	Teszt Sword
Depositing User:	Csaba Horváth
Identification Number:	MTMT:36329353
Date Deposited:	18 Sep 2025 10:29
Last Modified:	18 Sep 2025 10:29
URI:	http://publicatio.uni-sopron.hu/id/eprint/3735

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