Paper Information

Journal:   IRANIAN JOURNAL OF WOOD AND PAPER SCIENCE RESEARCH   2016 , Volume 31 , Number 1; Page(s) 105 To 117.
 
Paper: 

INVESTIGATION ON THE INFLUENCE OF BEECH WOOD ACETYLATION ON ADHESION STRENGTH OF TRANSPARENT COLORS (NITROCELLULOSE LACQUER, ACID CATALYZED LACQUER AND HALF-POLYESTER)

 
 
Author(s):  TAHMASEBI S., BAZYAR B.*, KHADEMI ESLAM H., GHOFRANI M.
 
* DEPARTMENT OF WOOD AND PAPER SCIENCE AND TECHNOLOGY, SCIENCE AND RESEARCH BRANCH OF ISLAMIC AZAD UNIVERSITY, TEHRAN, IRAN
 
Abstract: 

In this study, the effect of beech wood acetylation on the adhesion strength of transparent paints including nitrocellulose lacquer, acid catalyzed lacquer and Half-polyester was investigated. For this purpose, some boards from heart wood of beech (Fagus Orientalis) with a relative humidity of 12%, and dimension of 12×110×110 mm was prepared and were treated with acetic anhydride in two concentrations. Acetylation intensity was 12.5% and 15.5%. Then, the specimens were coated individually by transparent paints. FT-IR spectroscopy method was used to investigate the influence of acetylation process on painting performance. Results showed that adhesion strength reduction of radial surface was more than of tangential surface. The samples which were treated to 15.5% acetylation intensity had the lowest percentage of adhesion strength reduction. The results also showed that the coating by nitrocellulose lacquer and Half Polyester had more adhesion strength than of nitrocellulose lacquer and acid catalyzed lacquer.

 
Keyword(s): ACETYLATION, NITROCELLULOSE LACQUER, ACID CATALYZED LACQUER AND HALF-POLYESTER, BEECH, BOND RESISTANCE
 
References: 
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