Table of Contents
ISRN Materials Science
Volume 2011, Article ID 863083, 7 pages
http://dx.doi.org/10.5402/2011/863083
Research Article

Effects of Different Artificial Agings on Structure and Properties of Whatman Paper Samples

1Istituto di Chimica e Tecnologia dei Polimeri del CNR Via Campi Flegrei, 34-80078 Pozzuoli (NA), Italy
2Dipartimento di Ingegneria Chimica e Alimentare, Università di Salerno, Via Ponte don Melillo, 84087 Fisciano (SA), Italy

Received 20 April 2011; Accepted 20 May 2011

Academic Editors: X. Colom, J. Greener, M. Lebyodkin, and N. Uekawa

Copyright © 2011 M. Cocca et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

With the aim at controlling cellulose degradation phenomena, the natural aging of Whatman paper samples was simulated through different artificial aging processes: thermal oxidation in air at constant temperature, photo-oxidation under Xenon arc lamp, accelerating ageing in climatic chamber, and chemical oxidation with sodium methaperiodate. The cellulose degradation was studied by means of viscosimetric, Fourier transform infrared spectroscopy (FTIR), and wide angle X-ray scattering (WAXS) techniques together with thermogravimetric (TGA), mechanical, and optical analyses. All the treatments carried out were found to significantly modify paper structure and properties, the extent of the deterioration effects depending upon the aging kind. Direct correlations were, nevertheless, assessed among level of cellulose molecular degradation, formation of carboxyl, and/or carbonyl groups and paper strain at break.