Ponente
Descripción
Due to the environmental issues caused by plastic waste, there is a growing demand in the development of biodegradable and antimicrobial nanocomposite materials. Traditional food preservation films are highly susceptible to contamination by harmful microbes. Active packaging serves as an effective alternative, reducing the need for chemical preservatives in food while maintaining quality and extending shelf life. Most research is focused on replacing conventional plastic packaging with biodegradable materials that have similar properties and are low in cost. In this regard, natural clay and polymer-based films emerge as sustainable alternatives. Layered nanoclays are widely utilized as reinforcing agents in polymer nanocomposites. In particular, natural or modified bentonite clay is highly regarded for its practicality and effectiveness. As a layered silicate, it significantly enhances the mechanical, barrier, and thermal properties of nanocomposites compared to conventional polymers. However, the preparation of films can be a complex process, as it depends on the chemical compatibility between the polymer matrix and the clay, as well as the homogeneous dispersion of the clay within the polymer. Several synthesis strategies and preparation methods are discussed in the literature. The main goal of this contribution is to provide an overview of clay-polymer nanocomposites, along with their synthesis methods and applications.
Keywords: Clay, Polymer, Films, Sustainable nanacomposite and Food packaging
