International Journal of
Physical Sciences

  • Abbreviation: Int. J. Phys. Sci.
  • Language: English
  • ISSN: 1992-1950
  • DOI: 10.5897/IJPS
  • Start Year: 2006
  • Published Articles: 2568

Full Length Research Paper

The effects of adding the aluminum sulfate to the urea formaldehyde adhesive applied on plywood

Murat Ozalp1, Hasan Kabak2, Abdi Atilgan3 and Hüseyin Peker4*
1Department of Furniture and Decoration Education, Dumlupinar University, 43500 Simav-Kutahya, Turkey. 2Department of Furniture and Decoration, Giresun University, Giresun Vocational School,28048, Giresun-Turkey. 3Department of Furniture and Decoration, Artvin Coruh University, Artvin Vocational School, 08000, Artvin-Turkey. 4Department of Forest Industrial Engineering, Artvin Coruh University, 08000, Artvin-Turkey.
Email: [email protected]

  •  Accepted: 08 April 2013
  •  Published: 23 May 2013

Abstract

In the present study, the effects of adding the aluminum sulfate to the urea-formaldehyde (UF) adhesive, on the bonding characteristics and free formaldehyde content, have been studied. Experiments were conducted on the three layered plywood of ekaba (Tetraberlinia bifoliolata) and poplar (Populus x eureamericana), prepared by adding aluminum sulfate to the adhesive mixtures of these tree species in certain amounts. Further, in the produced plywoods, the bending strength for BS EN 310, the withdrawal shear strength for BS EN 314-2, and free formaldehyde content for ENV 717-2 were analyzed, and the obtained results were compared. It was seen that the addition of aluminum sulfate to the adhesive mixture used on the plywood increased its bending strength and withdrawal shear strength, but reduced the free formaldehyde content significantly.

 

Key words: Bending strength, aluminum sulfate, free formaldehyde content, plywood.

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