PRUNEANU M., MAIER S. S. , MAIER V., DESELNICU V., Mutlu M. M. , Gulumser G. , ...Daha Fazla

3rd International Conference on Advanced Materials and Systems, Bucharest, Romanya, 16 - 18 Eylül 2010, ss.113-118 identifier identifier

  • Basıldığı Şehir: Bucharest
  • Basıldığı Ülke: Romanya
  • Sayfa Sayıları: ss.113-118


This paper presents a novel procedure for the chemical synthesis of a melamine-formaldehyde resin, modified by sulfonation with sulfanilic acid. The product was characterized by chemical analysis, FTIR spectroscopy and gel-permeation chromatography (GPC). Experimental data confirmed the obtaining of three oligomeric fractions of the melamine-formaldehyde polycondensate class, with potential uses as pretanning agent in the manufacture of bovine wet-white leather. The tanning potential of the obtained resin was assessed through the shrinking temperature of the tanned bovine pelt. An increase of the shrinking temperature by 8-10 degrees C was recorded on the pretanned leather, compared with the pelt, when the resin was used alone, while when used along with resorcine, an increase by 30 degrees C of the shrinking temperature was recorded.