PROCESS FOR PRODUCING BIOPOLYMER NANOPARTICLES

摘要

A process for producing a biopolymer nanoparticles product is disclosed. In this process, biopolymer feedstock and a plasticizer are fed to a feed zo ne of an extruder having a screw configuration in which the feedstock is pro cess using shear forces in the extruder, and a crosslinking agent is added t o the extruder downstream of the feed zone. The biopolymer feedstock and pla sticizer are preferably added separately to the feed zone. The screw configu ration may include two or more steam seal sections. Shear forces in a first section of the extruder may be greater than shear forces in an adjacent seco nd section of the extruder downstream of the first section. In a post reacti on section located after a point in which the crosslinking reaction has been completed, water may be added to improve die performance.