Relazione su invito
Atmospheric pressure plasma jet as a cleaning tool for cultural heritage: results and perspectives.
Patelli A., Scopece P., Verga E.
In the last few years the field of atmospheric plasma has gained an increasing interest in applications connected to Cultural Heritage. Within the FP7 PANNA project (2011--2014) it has been possible to develop an innovative atmospheric plasma device as cleaning tool for cultural heritage. Plasma cleaning has some advantages if compared with standard techniques as it avoids the use of solvents, it is contactless and in comparison with laser it works by a surface chemical action rather than mechanical shock or local heating. Moreover atmospheric plasma has already shown good results in reducing mode for corroded surface layer metal conversion and in oxidation mode for biological cleaning and organic layer removal. An overview of the state of the art in this application field will be presented, highlighting where its application has been found more useful. Moreover the main results of the PANNA project, focusing on metal, stone and wall painting applications, will be presented.