Antimicrobial polypropylene films modified with layered double hydroxides nanoparticles

GIULIANA MOSCONI; LAURA E. VALENTI; RICARDO ROJAS; CARLA E. GIACOMELLI; CESAR G. GÓMEZ

Mar del Plata

Simposio; XVI Simposio Latinoamericano de Polímeros - XIV Congreso Iberoamericano de Polímeros; 2018

The purpose of active packaging design lies in the fact of reaching a longer shelf life to food products, from modification reactions onto film surface. One approach for that is by inhibiting microbial growth through addition of antimicrobial agent such as sodium benzoate, widely used as a food preservative. On the other hand, layered double hydroxides (LDHs) are suitable for food packaging nanocomposites because their storage capacity, transport, and controlled release of active compounds. Recent research works has been focused on the optimal LDHs synthesis and intercalation with novelty compounds, while adsorptions of LDH in a polymer matrix has been much less reported1. The aim of this work is to prepare a new antimicrobial food packaging using a modified surface of polypropylene (PP) with acrylic acid (AA) as a platform to adsorb LDHs with intercalated benzoate (Bz).