为提高极端润湿性表面的功能性，制备了超亲水、超疏水高粘附、超疏水低粘附 3 类极端湿润性表面，利用高速摄像机对不同上升高度下的气泡碰撞极端湿润性表面进 行了行为特性研究，所用气泡当量直径分别为2． 16、2． 59、3． 32 mm． 研究发现，表面湿润 性、气泡上升高度( L) 和气泡当量直径( D) 对气泡行为特性有着重要影响，表面微观结构 和表面张力是影响气泡在表面稳定状态的最为关键的因素． 当气泡碰撞超疏水低粘附表 面时，先振荡或弹跳，最后在表面铺展成一层气膜; 碰撞超亲水、超疏水高粘附表面时，气 泡先振荡或弹跳，最后以球缺状的形式静止在表面上． 气泡碰撞表面速度较大时，气泡在 3 类表面上都会发生弹跳行为，其初次弹跳高度( h1) 随着 L 增大先增大后减小，在 L 为 13． 6 mm 时均达到极值，分别为 6． 05、5． 53、4． 37 mm． 对超疏水低粘附表面而言，随着气 泡直径的增大，气泡在碰撞过程中的能量耗散增加，因此 h1逐渐下降，气泡发生铺展的时 间逐渐缩短

Three types of surfaces，namely superhydrophilic，low adhesive superhydrophobic and high adhesive superhydrophobic surfaces，were prepared to improve the functionality of the extremely humid surfaces． The behavioral characteristics of bubble collision with different extremely humid surfaces under different rising heights were studied by using high-speed camera． The bubble diameters are 2. 16，2. 59 and 3. 32 mm，respectively． The results show that surface wettability，bubble rising height ( L) and bubble diameter ( D) have important influences on bubble's behavioral characteristics． The bubble stable state is mainly affected by microstructure and surface tension． When bubbles collide with low adhesive surface，bubbles will initially vibrate or bounce，then spread and form a layer of gas film on the surface at last． When bubbles collide with superhydrophilic and high adhesive surfaces，bubbles will also firstly vibrate or bounce，and finally stay on the surfaces with a ball-lacking shape． As bubble collision velocity is large，the bubble can all rebound on the three types of surfaces． With the increasing L， the initial jump height ( h1) increases first and then decreases on three types of surfaces，and they reach the maximum value at L =13. 6 mm，which are 6. 05，5. 53 and 4. 37 mm，respectively． As to the low adhesive superhydrophobic surface，due to the energy dissipation of bubble increases during the collision process，both h1 and the time of bubble spreading decrease with the increasing D．