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Laminated veneer lumber from spindleless rotary-peeled veneers produced from short rotation, small Hevea plantation logs: effects of lamination pressure


Citation

Khoo, Pui San and Chin, Kit Ling and Hng, Paik San and Lee, Chuan Li and Bakar, Edi Suhaimi and Ashaari, Zaidon and Abdullah, Luqman Chuah and Gandaseca, Seca (2020) Laminated veneer lumber from spindleless rotary-peeled veneers produced from short rotation, small Hevea plantation logs: effects of lamination pressure. BioResources, 15 (3). 6735 - 6751. ISSN 1930-2126

Abstract

The invention of spindleless lathe technology has enabled veneers to be produced from small logs, such as logs from short rotation Hevea plantations, with low recovery loss. However, for structural laminated products, such as laminated veneer lumber (LVL), manufacturers are highly selective regarding the veneers for their conventional production. During the peeling process of small logs (< 18 cm), deeper and higher frequency of lathe checks were induced on veneer surface compared to the common log size used (> 30 cm). In this study, spindleless rotary-peeled veneers made from small rubber logs were processed into LVL using different lamination pressures: 7, 8, 9, and 10 kgf/cm2. The effects of lamination pressures on the physical and mechanical properties of the produced LVL were evaluated. Based on the findings, the specific gravity increased from 0.73 to 0.83 with increased lamination pressure. In terms of mechanical properties, all the values increased with lamination pressure, but with a sudden drop with 10 kgf/cm2. Understanding the effect of lamination pressure on the physical and mechanical properties can shed light on optimizing the usage of spindleless rotary-peeled veneers from small logs for the production LVL and other lamination products.


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Additional Metadata

Item Type: Article
Divisions: Institute of Tropical Forestry and Forest Products
Faculty of Forestry and Environment
Publisher: College of Natural Resources, North Carolina State University
Keywords: Laminated veneer lumber; Small Hevea log; Spindleless rotary-peeled veneers; Lamination pressure; Physical properties; Mechanical properties
Depositing User: Ms. Nuraida Ibrahim
Date Deposited: 16 Aug 2021 10:18
Last Modified: 16 Aug 2021 10:18
URI: http://psasir.upm.edu.my/id/eprint/89542
Statistic Details: View Download Statistic

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