Characterization of Laminated Composite derived from transversely compressed poplar

MANIHOZA, Student Joseph Olivier Abidine (2026) Characterization of Laminated Composite derived from transversely compressed poplar. MA/MSc, Faipari Mérnöki és Kreatívipari Kar (2013-tól 2021.06.30-ig: Simonyi Károly Műszaki, Faanyagtudományi és Művészeti Kar).

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Absztrakt (kivonat)

This study investigates the mechanical and bonding performance of laboratory-produced Laminated Veneer Lumber (LVL) panels bonded with Melamine Urea Formaldehyde (MUF) and Phenol Formaldehyde (PF) adhesives. The panels, with thickness ranging from 16 to 21 mm and configurations of 6 to 9 layers, were evaluated in both horizontal and vertical directions, The experimental program included the determination of density (EN 323), bending strength and modulus of elasticity (EN 310), and shear strength (EN 314-1/2). The results showed that density increases with pressing pressure and number of layers. Bending strength values ranged from 62 MPa to 115 MPa, significantly exceeding typical values reported for commercial LVL products (30–60 MPa). The modulus of elasticity ranged from approximately 6,600 MPa to 12,400 MPa, showing comparable performance to industrial references such as Kerto LVL. Bonding performance evaluation confirmed that all samples met the requirements of EN 314-2, with shear strength values above 1.0 MPa and high fiber breakage percentages, indicating strong adhesive bonding. PF adhesive demonstrated superior mechanical performance and durability, particularly at higher layer configurations and under severe conditions, while MUF adhesive showed satisfactory performance under moderate conditions. Due to time limitations, additional tests such as thickness swelling and hardness were not conducted as it was supposed to be, which may provide further insight into the physical and surface properties of the panels. Overall, the study demonstrates that the produced LVL panels exhibit high to very high mechanical performance and meet relevant European standards. The results confirm their suitability for structural applications, with PF-bonded panels recommended for exterior and load-bearing uses, and MUF-bonded panels suitable for interior applications.

Magyar cím

Keresztirányban préselt nyárfából származó laminált kompozit jellemzése

Angol cím

Characterization of Laminated Composite derived from transversely compressed poplar

Intézmény

Soproni Egyetem

Kar

Faipari Mérnöki és Kreatívipari Kar (2013-tól 2021.06.30-ig: Simonyi Károly Műszaki, Faanyagtudományi és Művészeti Kar)

Tanszékcsoport/intézet

FMK - Alaptudományi Intézet
FMK - Alkalmazott Tudományi Intézet
FMK - Kreatívipari Intézet

Szak

NEM RÉSZLETEZETT

Témavezető(k)

Helyi kari azonosító

FMK-1-2026-D

Mű típusa:	Diplomadolgozat (MA/MSc)
Felhasználói azonosító szám (ID):	Student Joseph Olivier Abidine MANIHOZA
Dátum:	16 Máj 2026 12:43
Utolsó módosítás:	16 Máj 2026 12:43
URI:	http://diploma.uni-sopron.hu/id/eprint/17457

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