Effect and mechanism of nanosize copper oxide on some physical and mechanical properties of flakeboards

Authors

  • Wei Gao Beijing Forestry University
  • Jinzhen Cao Beijing Forestry University
  • D. Pascal Kamdem Michigan State University

Keywords:

nanosize copper oxide, basic copper carbonate, flakeboard, physical and mechanical properties, differential scanning calorimetry (DSC)

Abstract

The effects of nanosize copper oxide and basic copper carbonate on the physical and mechanical properties of flakeboards were investigated according to ASTM Standard D-1037, and the curing process of phenol formaldehyde (PF) resin containing copper compounds was further investigated using dynamic differential scanning calorimetry (DSC). The results showed that nanosize copper oxide had no or slightly beneficial effects on the mechanical properties and dimensional stability of the flakeboards. While basic copper carbonate increased thickness swelling and water absorption to some extent, the difference was not statistically significant. The DSC results indicated that the comparable activation energy and reaction enthalpy, obtained from nanosize copper oxide treated samples, contributed to the higher degree of conversion of PF resin and undiminished bonding strength of flakeboards, which is probably related to the acceleration of the addition reactions taking place among small molecules in PF resin and the enhancement of heat transfer of composite mat caused by nanosize copper oxide.

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Author Biographies

Wei Gao, Beijing Forestry University

College of Material Science & Technology, Beijing Forestry University, Qinghua Eastroad 35, Haidian, Beijing, China. Faculty of Material Engineering, Southwest Forestry University, Kunming City, Yunnan Province, P. R. China.

Jinzhen Cao, Beijing Forestry University

1College of Material Science & Technology, Beijing Forestry University, Qinghua Eastroad 35, Haidian, Beijing, China.

D. Pascal Kamdem, Michigan State University

Department of Forestry, Michigan State University, East Lansing, MI 48824, USA.

How to Cite

Gao, W., Cao, J., & Pascal Kamdem, D. (2014). Effect and mechanism of nanosize copper oxide on some physical and mechanical properties of flakeboards. Maderas-Cienc Tecnol, 13(2), 203–210. Retrieved from https://revistas.ubiobio.cl/index.php/MCT/article/view/1323

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