Application Progress of Nano Spray Drying Technology
Nano spray drying is a mild and effective particle preparation technology.It innovatively adopts piezoelectric atomizing mechanism,laminar heating mode and electrostatic particle collection system,and has many advantages such as adjusting particle size,improving solubility,realizing surface modification.Nanoscale particles can be obtained with high output(90％)by this technology.The minimum sample volume processed by the nano spray dryer can reach milligram level.Starting from the development history and technical characteristics of nano spray drying technology,this paper introduces the structure and working mechanism of nano spray dryer,summarizes the formulation and process parameters affecting the properties of the obtained particles by nano spraying,and puts forward suggestions on their selection and optimization.
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