Migration of Di-(2-ethylhexyl) phthalate (DEHP) and diisononyl phthalate (DINP) from PVC articles

摘要

DEHP and DINP are primary plasticizers used in many flexible vinyl products such as soft teethers that may be mouthed by young children. The ultrasonic bath extraction seems to be adequate to determine the migration of phthalates from plastic articles and gives values that are comparable with release rates observed in sucking experiments with test persons. However, the higher release rates that occur when articles are chewed are not reflected by the method. Those higher release rates could be taken into account by using appropriate correction factors.