Measurement of contact angle between stainless steel surface and carbon dioxide by pendant drop method  

作　　者：PEI NianQiang GUO KaiHua LIU Jie LI TingXun 

机构地区：[1]School of Engineering, Sun Yat-sen University, Guangzhou 510275, China [2]School of Mechanical Engineering & Automation, Shanghai Jiao Tong University, Shanghai 200030, China

出　　处：《Chinese Science Bulletin》2008年第16期2560-2564,共5页

基　　金：the Focus of International Science and Technology Cooperation Project of the Ministry of Science and Technology (Grant No. 2003DF000050)――The development of the track detector thermal control system for the International Space Station Alpha Magnetic Spectrometer (AMS);a special preliminary study item of the 973 Program (Grant No. 2006CB708613) ;the Natural Science Foundation of Guangdong Province (Grant No. 05003274)

摘　　要：To measure contact angle between CO2 and solid surface, in this study a visual high-pressure vessel has been developed, with a corresponding well-controlled constant temperature system. Pendant drop method is applied to the investigation of the contact angles of CO2 on a stainless steel surface in its own vapor. The image of the pendant drop is recorded by a camera, and a B-Snake method is used to analyze the contour and the contact angle of the droplet. The experimental results have provided a set of well tested data, which show that CO2 has good infiltration into stainless steel surface and the de- veloped method can be used as a standard testing one for measuring the contact angle between high-pressure liquid and solid surface.To measure contact angle between CO2 and solid surface, in this study a visual high-pressure vessel has been developed, with a corresponding well-controlled constant temperature system. Pendant drop method is applied to the investigation of the contact angles of CO2 on a stainless steel surface in its own vapor. The image of the pendant drop is recorded by a camera, and a B-Snake method is used to analyze the contour and the contact angle of the droplet. The experimental results have provided a set of well tested data, which show that C02 has good infiltration into stainless steel surface and the developed method can be used as a standard testing one for measuring the contact angle between high-pressure liquid and solid surface.

关 键 词：二氧化碳 固体表面 温度系统 悬膜下垂 

分 类 号：O6[理学—化学]