Wood and Fiber Panel Technology

Wood and Fiber Panel Technology

Antonio Pizzi (Lorraine University, Epinal, France & King Abdulaziz University, Jeddah, Saudi Arabia)
Copyright: © 2014 |Pages: 44
DOI: 10.4018/978-1-4666-4554-7.ch002
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Abstract

The influence on the preparation of wood and fiber panels of adhesives and wood, with concepts such as surface wettability, wood plasticization, glass transition temperature, and models of cell walls buckling are presented and discussed. Parameters of manufacturing at the industrial level are presented, and the relationship between panel properties and a number of manufacturing parameters such as press temperature, type of pressing cycle, maximum pressure, and relative surface/core moisture content are discussed. The scanning electron microscopy showing the appearance of the adhesive/wood interface is briefly presented. The concept of density profile in relation to panel properties and how to influence it is discussed. Different manufacturing equipment is presented, in particular fundamental differences between single daylight, multi-daylight, and continuous panel presses and their effect on panel properties and performance.
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Wood Plasticization

Board manufacturing is based on the densification of a particles mat and its consolidation in the hot press. At a molecular level, wood cells are deformed above their elastic domain and plastic deformation or damage occurs. The two terms plastic deformation and damage are often confused.

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