Abstract
Screw Withdrawal Resistance and Surface Soundness of Three-Layer Fiberboard Having Coarse Fibers in Core Layer
Highlights
The results showed that the face Screw withdrawal resistance (SWR) and edge SWR of Medium density fiberboard (MDF) panels improved as the fiber length increased from 4.3 to 11.5 mm in the core layer
SWR and surface soundness of three-layer MDF was found better than single-layer MDF as the surface layers of the panels were made from softwood fine fibers and the core layer was made from hardwood coarse fibers
The surface SWR increased as the fiber length increased from 4.3 to 11.5 mm and the edge SWR increased as the fiber length increased from 4.3 to 17.8 mm
Summary
Medium density fiberboard (MDF) is a woodbased panel made from fine wood fibers with resin under heat and pressure. It is one of the most commonly used wood-based panels in the furniture industry due to its favorable properties such as good mechanical properties and surface quality, and good machinability. The core layer of the particleboard is mostly made from coarse wood particles, while the surface layers are made from fine wood particles. This technology can be applied to MDF production process. Due to a shortage in the supply of wood material and transportation costs, MDF manufacturers are forced to decrease panel density having acceptable technological properties
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