Getty Conservation Institute 320d ago

Full Lecture Title — Invasive to Non-Invasive: Coupling DMA with DIC to interrogate the mechanical response of plastic composite objects during dynamic environmental management In this presentation, we discuss data pertaining to multiple combinations of cellulose di- and tri-acetate produced in the laboratory and plasticized with two common additives in varied amounts. Additionally, each film was tested with and without presence of paint, created from historic animation paint recipes. Films were tested with invasive and non-invasive methods. Firstly, in DMA, under low tensile stress (0.001 MPa), where they were dried in pure nitrogen atmosphere and then slowly humidified, allowing them to equilibrate in five subsequent levels of RH, representing critical thresholds for collections storage (20%, 30%, 50%, 70%, and 80%) in both humidifying and drying. Secondly, examination of CA film was conducted in a climate-controlled chamber using DIC, following systematic and real-life-derived environmental profiles. Presenters: Jacek Olender, Image Permanence Institute, Rochester Institute of Technology Emma Richardson, Image Permanence Institute, Rochester Institute of Technology Meredith Noyes, Image Permanence Institute, Rochester Institute of Technology