Impact of nitrogen oxides on the changes of selected properties of pulp

Abstract

The aim of this study was to evaluate the effect of the atmosphere of nitrogen oxides on the selected properties of various cellulose and lignocellulose materials. Selected samples were hand-made paper from Velke Losiny and wood sulphite wrapping paper from Větřní. In cooperation with the National Archive in Prague, selected samples were subjected to three cycles of exposure to nitrogen oxides (120, 240, and 360 hours.). After each exposure were measured hypermolecular selected properties. Measurements have shown that the influence of nitrogen oxides changes occur in structural and surface-molecular properties of lignocellulose materials.