AIC 53rd Annual Meeting

Advanced thermomechanical studies have been carried out on the first formulation BEVA 371 containing Laropal K-80 (discontinued ca. 2005) and formulations recently developed at the University of Akron. Studies are based on neat films of the adhesives and adhered bonds between a mock painting on linen and linen and polyester lining canvases.  Creep behavior of old and new formulations using principles of thermomechanical analysis and time-temperature superposition (TTSP) produce master curves allowing for the creep performance of the adhesive to be predicted over longer time periods. Furthermore, by utilizing small/wide-angle X-ray scattering methods and fast-scanning calorimetry, we relate the adhesive’s creep performance to the underlying semi-crystalline morphology, which can be fine-tuned based on the thermal treatment of the adhesive during activation. Additionally, creep behavior of mock samples was imaged by (3-dimensional) digital image correlation (DIC) analysis under fixed-load creep testing. Findings provide insight into qualities related to the performance of the adhesive during activation and illustrate concerns of stress concentration relevant to edge-lining treatments but absent in full linings. 

Conflict of Interest: This research has been fully funded by the Getty Foundation and the authors have no financial or material interest in CPC or CTS, the producers of BEVA products.