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    The Structure-Property Correlations in Dry Gelatin Adhesive Films

    Year: 2021

    Journal: Adv. Eng. Mater., Volume 23, JAN

    Authors: Mosleh, Yasmine; de Zeeuw, Willem; Nijemesland, Marlies; Bijleveld, Johan C.; van Duin, Paul; Poulis, Johannes A.

    Organizations: Netherlands Organization for Scientific Research/Netherlands Institute for Conservation, Art and Science (NWO/NICAS) [628.007.034 5443]

    Keywords: adhesives; bloom strength; gelatins; renaturation; triple helix

    Gelatins are proteinaceous natural materials that are widely used in areas such as conservation and restoration of artifacts as adhesives and consolidants, in pharmaceutics as drug delivery carriers, and in the food industry as structurants. Herein, type A porcine gelatin adhesive films are prepared via solution casting method and their physical and mechanical properties are investigated using X-ray diffraction (XRD), differential scanning calorimetry, contact angle measurement, dynamic mechanical analysis, and uniaxial tensile tests. The results demonstrate a linear correlation between microstructure of gelatin films in terms of their triple-helix content and their macroscopic mechanical properties such as tensile strength and gel (Bloom) strength. Moreover, the findings of this study can help the scientists, in, e.g., art conservation and restoration, to predict the mechanical performance of these adhesives by performing a less material demanding and nondestructive physical measurement such as XRD.
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