Evaluation of Adhesion Strength of Coatings and Face Layers Properties of Foam Core Lightweight Panels

Document Type : Original Article

Authors

1 Wood Science and Technology Department, Faculty of Natural Resources, Tarbiat Modares University, Noor, Iran

2 Wood and Civil Engineering Department, Bern University of Applied Science, Biel, Switzerland

Abstract

The aim of this study was the evaluation of adhesion strength of surface coatings in lightweight foam core panels. Lightweight foam core panels were manufactured with 3, 4, and 5 mm face layers thicknesses and two press temperature of 130 °C and 160 °C. Face layers properties and also adhesion strength of acrylic and polyurethane coating on lightweight panels was investigated. The results showed that the surface soundness, surface roughness, and surface wettability were significantly increased in panels produced by 130 °C whilst the face layers thicknesses increased from 3 to 5 mm. Conversely, the surface soundness, surface roughness, and surface wettability were significantly decreased in panels produced by 160 °C whilst the face layers thicknesses increased from 3 to 5 mm. The results also showed that the adhesion strength of polyurethane coating was drastically higher than that of water-based acrylic coating. The highest adhesion strength was obtained in panels manufactured with press temperature of 130°C, face layers thickness of 5 mm and polyurethane coating.

Keywords

Main Subjects

References

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Journal of Color Science and Technology
Volume 14, Issue 1
June 2020
Pages 1-11

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