The Possibility of Changing the Wettability of Material Surface by Adjusting Gravity
作者机构：Key Lab of Space Bioscience&BiotechnologySchool of Life SciencesNorthwestern Polytechnical UniversityXi’an710072 ShaanxiChina School of BioengineeringSichuan University of Science and EngineeringZigong643000 SichuanChina Shenzhen Research Institute of Northwestern Polytechnical UniversityShenzhen518057 GuangdongChina
出 版 物：《Research》 (研究（英文）)
年 卷 期：2020年第2020卷第1期
页 面：435-445页
核心收录：
学科分类：08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学]
基 金：This work was supported by the National Natural Science Foundation of China(Grant No.U1632126) the Scientific Research Foundation for the Introduction of Talent of Sichuan University of Science and Engineering(Grant No.2017RCL75)
主 题：apparent hysteresis hydrostatic
摘 要：The contact angle,as a vital measured parameter of wettability of material surface,has long been in dispute whether it is affected by ***,we measured the advancing and receding contact angles on extremely low contact angle hysteresis surfaces under different gravities(1-8G)and found that both of them decrease with the increase of the *** underlying mechanism is revealed to be the contact angle hysteresis and the deformation of the liquid-vapor interface away from the solid surface caused by gradient distribution of the hydrostatic *** real contact angle is not affected by gravity and cannot measured by an optical *** measured apparent contact angles are angles of inclination of the liquid-vapor interface away from the solid ***,a new equation is proposed based on the balance of forces acting on the three-phase contact region,which quantitatively reveals the relation of the apparent contact angle with the interfacial tensions and *** finding can provide new horizons for solving the debate on whether gravity affects the contact angle and may be useful for the accurate measurement of the contact angle and the development of a new contact angle measurement system.
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