TY - JFULL AU - Emil G. Ioanid and Viorica Frunză and Dorina Rusu and Ana Maria Vlad and Catalin Tanase and Simona Dunca PY - 2015/7/ TI - Radio-Frequency Plasma Discharge Equipment for Conservation Treatments of Paper Supports T2 - International Journal of Chemical and Molecular Engineering SP - 759 EP - 764 VL - 9 SN - 1307-6892 UR - https://publications.waset.org/pdf/10002378 PU - World Academy of Science, Engineering and Technology NX - Open Science Index 102, 2015 N2 - The application of cold Radio-Frequency (RF) plasma in the conservation of cultural heritage became important in the last decades due to the positive results obtained in decontamination treatments. This paper presents an equipment especially designed for cold RF plasma application on paper documents, developed within a research project. The equipment consists in two modules: the first one is designed for decontamination and cleaning treatments of any type of paper supports, while the second one can be used for coating friable papers with adequate polymers, for protection purposes. All these operations are carried out in cold radio-frequency plasma, working in gaseous nitrogen, at low pressure. In order to optimize the equipment parameters ancient paper samples infested with microorganisms have been treated in nitrogen plasma and the decontamination effects, as well as changes in surface properties (color, pH) were assessed. The microbiological analysis revealed complete decontamination at 6 minutes treatment duration; only minor modifications of the surface pH were found and the colorimetric analysis showed a slight yellowing of the support. ER -