Influence of Bleaching Chemicals on The Some Varnishing Properties of Coated Fir Wood

Bozdoğan Balçık Ö., Özdemir T.

THE INTERNATIONAL FOREST PRODUCTS CONGRESS, cilt.1, sa.1, ss.1020-1027, 2018 (Hakemli Dergi)

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 1 Sayı: 1
  • Basım Tarihi: 2018
  • Dergi Adı: THE INTERNATIONAL FOREST PRODUCTS CONGRESS
  • Sayfa Sayıları: ss.1020-1027
  • Karadeniz Teknik Üniversitesi Adresli: Evet

Özet

The paper presents the aim and objectives of a research project concerned with the effect of bleaching chemicals on surface adhesion strength and surface roughness in Fir wood. This purpose five different bleach chemicals which sodium hydroxide-hydrogen peroxide, oxalic acid, peracetic acid, peracedic acid diluted 1/3, ,peracedic acid diluted 1/6 and fire wood (Abies normanniana) were used. The project deal with effect of heartwood, sapwood ratio and flat, edge grained cross section surface roughness and adhesion strength on fir wood were determined. All specimens were varnished with cellulosic varnish. Surface roughness of coated samples were also measured using a stylus method. Adhesion strength was determined according to related standarts for bleaching and control samples. The results indicated that, all bleaching chemicals were increased the surface roughness. While the lowest adhesion strength was determined for the samples treated with oxalic acid bleaching, the highest adhesion strength was determined for the samples treated with perasetic acid bleaching.

KEYWORDS: Fir, Bleaching, Surface roughness, Adhesion strength