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Effect of nitrogen oxides on aging processes of porous lignocellulosic materials

Authors: Filipi Michaela | Milichovský Miloslav | Mikala Ondřej

Year: 2015

Type of publication: článek v odborném periodiku

Name of source: Wulfenia Journal

Page from-to: 424-434

Titles:

Language	Name	Abstract	Keywords
cze	Vliv oxidů dusíku na process stárnutí lignocelulózových materiálů	Článek popisuje vliv oxidů dusíku na celulózové a lignocelulózové materiály. Věnuje se zejména jejich změnu mechanických, optických a dalších vlastností, které ovlivňují stárnutí materiálů.	oxidy dusíku; stárnutí; lignocelulózové materiály
eng	Effect of nitrogen oxides on aging processes of porous lignocellulosic materials	This article describes some properties and behaviour of lignocellulosic materials aging in atmosphere polluted by nitrogen oxides. Mechanism of depolymerization during nitroxide-mediated oxidation of native cellulose is presented that has been studied under various conditions. Lignocellulosic materials containing poly-anhydroglucuronic acid is of very versatile lifetime. During storage of those materials, decaying of PAGA takes place, which is manifested by colour change and by loss of tensile properties. Further degrading products come up, which initialise a total destruction of the cellulose matter.	nitrogen oxides; aging; lignocellulose materials