Nanoclay particles were included in a gelatin matrix and gelatin-clay nanocomposites with different clay levels were produced, successfully. Mechanical properties of gelatin-clay nanocomposite films were measured using a texture analyzer by tensile test. Water vapor permeability, solubility, opacity, and color parameters were also determined. In the absence of nanoclay water vapor permeability was 0.86 g mm/kPa m2 h and with addition of 18% nanoclay it decreased to 0.42 g mm/kPa m2 h. Tensile strength of films was directly proportional to clay content, while addition of clay caused a reduction in elongation and water vapor permeability of films. Nanoclay was able to improve some physical and mechanical properties of gelatin biofilms.
Farahnaky, A., Dadfar, S. M. M., & Shahbazi, M. (2014). Physical and mechanical properties of gelatin-clay nanocomposite. Journal of Food Engineering, 122(1), 78-83. https://doi.org/10.1016/j.jfoodeng.2013.06.016