Effect of pressing pressure on the physical and mechanical properties of hybrid panels from semantan and oil palm trunk

Tew, Zhi Shien (2024) Effect of pressing pressure on the physical and mechanical properties of hybrid panels from semantan and oil palm trunk. [Project Paper] (Submitted)

Text FPAS 2024 39.pdf Download (3MB)

Abstract

The limited availability of wood resources for panel production is currently being confronted with various challenges, including deforestation, climate change, and illegal logging, requiring the exploration of alternative natural materials such as bamboo and oil palm trunks (OPT) as substitutes for wooden resources. In addition, pressing pressure issues with the hybrid laminated panels, such as insufficient bonding, over-compaction, internal stresses, and high energy consumption, also pose concerns. Therefore, this study investigated the effect of pressing pressures on the physical and mechanical properties of 3-ply hybrid laminated panels made from Semantan (Gigantochloa scortechinii) and different parts of OPTs (inner and outer) as potential for the manufacturing of interior applications. Physical properties studied included density, moisture content (MC), water absorption (WA), and thickness swelling (TS); mechanical properties examined included modulus of elasticity (MOE), modulus of rupture (MOR), compressive strength, and shear strength. Six types of panels were fabricated using both 20-ton force and 28-ton force: panel BBB (100% made of crushed bamboo mats), which also acted as control panels; panel BOB (outer OPT veneer as a core layer and crushed bamboo mats as face and bottom layers); and panel BIB (inner OPT veneer as a core layer and crushed bamboo mats as face and bottom layers). The 3-ply laminated panel was arranged in a perpendicular direction, which was then cold pressed (5 kg/cm2; 15 minutes) and hot pressed (25 kg/cm3; 15 minutes; 110 °C). The adhesive, urea-formaldehyde (UF), and the hardener, Ammonium chloride (NH4Cl), were used with a spread rate of 250 g/m2. The ANOVA revealed that only density, WA, TS, and shear strength showed a significant interaction between pressing pressure and material. However, all examined physical and mechanical properties were influenced by material but not affected by pressing pressure, except density and TS. This study concludes that the effect of pressing pressure only showed a significant impact on the physical properties of hybrid laminated panels made of crushed bamboo mats and different parts of OPT veneer, but not on mechanical properties.

Item Type:	Project Paper
Faculty:	Fakulti Perhutanan dan Alam Sekitar
Depositing User:	Ms. ROHANA ALIAS
Date Deposited:	14 May 2024 07:23
Last Modified:	05 Aug 2024 04:22
URI:	http://psaspb.upm.edu.my/id/eprint/1803

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