Optimization of process parameters for preparation of polystyrene PM2.5 particles by supercritical antisolvent method using BBD-RSM

摘要

The schematic diagram of the SAS equipment. (1) Carbon dioxide cylinder; (2, 6, 8, 10, 12, 13, 15) screw valve; (3) purifier; (4) flow-meter; (5) refrigeration equipment; (7) plunger pump; (9) buffer vessel; (11) crystallizer; (14) thermostated air chamber; (16) solution tank; (17) advection pump.