Evaluate the effect of oil-heat treatment of Fir species on contact angle and adhesion strength of water based clear and acid catalyzed transparent coat

Hosseini Fard, Mohammad Saleh; Khojasteh Khosro, Saeed; Mohebby, Behbod

doi:10.22092/ijwpr.2015.11897

Document Type : Research Paper

Authors

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

² Wood Science and Technology Department, The Faculty of Civil Engineering, Shahid Rajaee Teacher Training University

https://doi.org/10.22092/ijwpr.2015.11897

Abstract

In this research the effect of oil-heat treatment of Fir species (Abies spp) on contact angle and adhesion strength of organic solvent based and water based coating (acid catalyzed and acrylic water based coating) were investigated. Soy oil was used for the heat treatment modification. Modification process of samples were done at two time, 12 and 15 hours with temperature of 180°C. Control and modified samples were covered with acid catalyzed and acrylic water based coating. Contact angle of water was measured before and after treatment. Adhesion strength of coating was determined according to ASTM 4541 standard. Obtained results of contact angle and adhesion strength were compared with the control samples. The results showed that modification process of oil-heat treatment increased contact angle. This increase continued by increasing treatment time. Increasing contact angle reduced wettability of samples’ surface. On the other hand oil-heat treatment of wood, decreased adhesion strength of coating. The lowest value of adhesion strength was observed in the modification process of 15 hours. Results of comparing coating revealed that acid catalyzed coating had higher adhesion strength than acrylic water based coating but generally no significant differences was observed between these coating.

Keywords

Main Subjects

Biology and Wood Protection

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Iranian Journal of Wood and Paper Science Research

Evaluate the effect of oil-heat treatment of Fir species on contact angle and adhesion strength of water based clear and acid catalyzed transparent coat

References

References

Volume 30, SPRING 1 - Serial Number 50
May 2015
Pages 173-181

Evaluate the effect of oil-heat treatment of Fir species on contact angle and adhesion strength of water based clear and acid catalyzed transparent coat

References

References

Volume 30, SPRING 1 - Serial Number 50May 2015Pages 173-181

Volume 30, SPRING 1 - Serial Number 50
May 2015
Pages 173-181