DSC, DMTA
and SEM were also evaluated for determining the effects of microparticles in the polymeric
matrix. Silver–zinc crystals inhibited the growth of various microbial strains, being Salmonella
typhimurium ATCC 14028 which presented greatest resistance. Silver–zinc crystals were
well impregnated in PA-6 films. Inclusion of silver–zinc crystals did not modify the mechanical
properties and decreased the oxygen transmission rate of the films.