Thermal Properties of Anionic Polyurethane Composition for Leather Finishing

  • Olga KOVTUNENKO
  • Tatyana TRAVINSKAYA
  • Olena MOKROUSOVA Kiev National University of Technologies and Design Kiev National University of Trade and Economics
Keywords: anionic polyurethane, composition, collagen products, montmorillonite, thermal stability, leather, finishing

Abstract

Thermal properties of anionic polyurethane composition mixed with collagen product and hydrophilic sodium form of montmorillonite for use in the finishing of leather were studied by thermogravimetric method. The thermal indices of processes of thermal and thermo-oxidative destruction depending on the polyurethane composition were determined. The influence of anionic polyurethane composition on thermal behavior of chromium tanned gelatin films that imitate the leather were studied. APU composition with natural compounds increases their thermal stability both in air and in nitrogen atmosphere due to the formation of additional bonds between active groups of APU, protein and chrome tanning agent as the result of chemical reactions between organic and inorganic parts with the new structure formation.

DOI: http://dx.doi.org/10.5755/j01.ms.22.3.10043

Author Biography

Olena MOKROUSOVA, Kiev National University of Technologies and Design Kiev National University of Trade and Economics
Departament  of leather and fur technologies and biotechnologies, Dr. Sc., Prof.
Published
2016-09-01
Section
POLYMERS AND COMPOSITES, WOOD