BIOACTIVE BIOPOLYMER FILMS AND COATINGS

摘要

A process for manufacturing a biodegradable bioactive film product, the process comprising: a) isolating polyhydroxyalkanoate from a bacterial culture; b) optionally bleaching the polyhydroxyalkanoate; c) dispersing the polyhydroxyalkanoate in a surfactant solution to form a dispersion; d) drying the dispersion to obtain dried polyhydroxyalkanoate particles; e) mixing the polyhydroxyalkanoate with at least one bioactive compound or organism, at least one nucleating agent, at least one filler, at least one plasticizer and at least one impact modifier or fiber to form a mixture; f) extruding the mixture as a film; and g) winding the film onto a spool.