Process of Microcellular Propellants with Adjustable Skin Thickness  

作　　者：YING Sanjiu CHEN Xiru LUO Yuanxiang 

机构地区：[1]School of Chemical Engineering, Nanjing University of Science and Technology

出　　处：《Defence Technology（防务技术）》2013年第1期70-74,共5页Defence Technology

摘　　要：Microcellular propellants show a vast applicable prospect due to their special shell-pore structure. The effects of saturation pressure and desorption time on skin thickness are studied. The skin thickness is observed and measured using scanning electron microscope (SEM). The results show that the skin thickness decreases when saturation pressure increases from 15 MPa to 30 MPa. In contrast, the skin thickness increases as the desorption time changes from 2 min to 20 min.Therefore, the microcellular propellants with adjustable skin thickness can be obtained under the variable process conditions such as saturation pressure and desorption time.Microcellular propellants show a vast applicable prospect due to their special shell-pore structure. The effects of saturation pressure and desorption time on skin thickness are studied. The skin thickness is observed and measured using scanning electron microscope （SEM）. The results show that the skin thickness decreases when saturation pressure increases from 15 MPa to 30 MPa. In contrast, the skin thickness increases as the desorption time changes from 2 min to 20 min. Therefore, the microcellular propellants with adjustable skin thickness can be obtained under the variable process conditions such as saturation pressure and desorption time.

关 键 词：materials experiment microcellular propellant skin thickness saturation pressure desorption time supercritical CO2 fluid 

分 类 号：TB383.4[一般工业技术—材料科学与工程]