Structural Performance of Three-Layer Particleboards with Waste Fiber Reinforcement: A Review-Paper

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This review assesses the use of agricultural, food-industry, and wood-based waste fibers in three-layer particleboards as a sustainable alternative to conventional wood panels. It examines fiber chemistry, layer properties, and board performance, focusing on water absorption, thickness swelling, modulus of rupture (MOR), and modulus of elasticity (MOE), and compares reported results with international standards.<br /><br />The reviewed evidence indicates that waste fibers—including crop residues, food-processing byproducts, sawdust, and wood shavings—can produce panels suitable for some general-purpose and structural applications. Many reported boards meet or exceed relevant standards, although performance varies substantially by raw material, resin, density, and manufacturing conditions. Face layers generally have greater density and elastic and shear properties than the core, contributing to panel stiffness and strength. Some boards also show high water absorption or swelling, so not all formulations are appropriate for moisture-sensitive uses.<br /><br />Using waste fibers could reduce reliance on timber, divert waste from disposal, and support more resource-efficient construction. However, many reviewed studies use urea-formaldehyde resin, which raises concerns about formaldehyde emissions; the review does not establish that waste-fiber reinforcement itself reliably prevents these emissions.<br /><br />The authors recommend optimizing binders and investigating safer alternatives, conducting lifecycle assessments, and studying market adoption. Further research should also improve production methods and evaluate how agricultural waste availability may vary across rural and urban settings. Overall, waste-based three-layer particleboards show promise, but their suitability depends on the specific formulation and intended application.

Keywords

three-layer particleboard

waste fibers

agricultural waste

food-industry byproducts

wood-based waste

water absorption

thickness swelling

MOR

MOE

formaldehyde emissions