An issue to prepare a protective and removable coating for conservation properties is a reasonable demand for a conservator, but it is difficult to achieve both properties from the chemist's perspective. Herein we will address this issue through the modification of standard polyurethane and/or acrylate coatings by addition of specific additives with the aim to tailor the final properties. Our objective is to make clear removable protective coatings for bronze objects. The basics of removability is the inherent chemical decomposition mechanism that should differ from the curing mechanism not exceeding 80 °C. The crosslinking of the coatings will be modified by using different ratios in polyols and isocyanates, and followed by IR and Raman spectroscopy. The protection efficiency will be analysed by potentiodynamic polarisation technique and salt spray tests, while cross cut test will be used to evaluate adhesion and AFM to define morphology. Advanced analytical approaches, i.e. ex situ IR reflection-absorption and in situ Raman spectroelectrochemical techniques, will be used to get insight into structural changes that occured during forced anodic polarisation. Such studies enabled suitable modification in order to manufacture coatings with better protective efficiency. The activity is carried out within the framework of the NANORESTART project which has received funding from the European Union's Horizon 2020 research and innovation programme under grant agreement No 646063.
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