A new experimental procedure for incorporation of model contaminants in polymer hosts

摘要: A new experimental procedure for incorporation of model contaminants in polymers was developed as part a general scheme testing the efficiency functional barriers food packaging. The aim to progressively pollute controlled fashion up high level range 1000 ppm and use them input core layer tri-layer package, order monitor migration phenomena difficult study real conditions. To this end, contamination recipe initially formulated by set selected surrogates. developed, led satisfactory results far homogeneity final concentration polymer s concerned. High temperature data were also used evaluate typical thermoforming processes reducing possible volatile non-volatile substances from recycled polymeric materials.