EVALUATION OF CELLULOSE ACETATE AND CHITOSAN USED FOR THE TREATMENT OF HISTORICAL PAPERS
Keywords:
Historical paper, ageing, polymers, tensile strength, elongation, UVspectrophotometer, XRD, SEMAbstract
A lot of papers in museums and libraries suffer from unsuitable environmental conditions that can lead to brittleness and fragility. This study aims to evaluate the efficiency of cellulose acetate and chitosan at different concentrations for the preservation of historical papers. The untreated and treated samples were submitted to different accelerated ageing cycles. Analytical techniques used for the evaluation process were tensile strength and elongation measurement, UV-spectrophotometer, XRD, and SEM. The results revealed that heat-moist-light ageing cycle affected the properties studies more than other ageing cycles. The lower concentrations gave an improvement better than the higher concentrations of cellulose acetate and chitosan.