@gunshooter
2019-09-11T12:58:12.000000Z
字数 1720
阅读 558
关键词：metal foam wettability & contact angle
文献阅读整理
- 关键词：metal foam wettability & contact angle
- 01 A Super-Hydrophobic and Super-OleophilicCoating Mesh Film for the Separation of Oil andWater
- 02 A three-dimensional porous metal foam with selective-wettability for oil–water separation
- 03 Experimental investigation on water drainage characteristics of open-cell metal foams with different wettabilities
- 04 Dover-2019-Revisited Cassie’s law to incorporate microstructural capillary effects
01 A Super-Hydrophobic and Super-OleophilicCoating Mesh Film for the Separation of Oil andWater
这篇2004年的文章中提到，金属网的孔径会影响水的接触角。不过这篇文章也是做水油分离的，也做了涂层。
02 A three-dimensional porous metal foam with selective-wettability for oil–water separation
油水分离的文章，都是先搞一个疏水层在上面。那么疏水肯定是因为疏水层的存在（化学原因）了。感觉这和我要考虑的问题不一样。
03 Experimental investigation on water drainage characteristics of open-cell metal foams with different wettabilities
交大胡海涛 2017
给出了金属泡沫亲水、疏水改性的方法。
- 亲水：丙酮超声3分钟，2.5mol/L氢氧化钠+0.13mol/L过硫酸铵，不同时间会得到不同润湿性，去离子水洗涤。参考文献[1][2]。
- 疏水：先进行碱辅助表面氧化（上述步骤），浸入2g / L硬脂酸乙醇溶液和10mmol / L正十二烷基硫醇乙醇溶液 30min，乙醇洗涤3min，通氮气流干燥。参考文献[3]。
给出了PPI和porosity的测量方法：
文章记录了不同润湿性、ppi和porosity的样本的存水能力和排水过程。显然疏水的样品排水更好。感觉这文章是有点水。
水不水的，有就行啊！
哎。
04 Dover-2019-Revisited Cassie’s law to incorporate microstructural capillary effects
- 解决（一定程度上）cassie公式在一些porosity情况下失效问题
- 在硅片上蚀刻方柱阵列，边长5~40um，沉积FDTS疏水处理；
- 显微镜观察，在接触线处存在液体桥
- 考虑弯液面面积，修正cassie公式，则实验与模型吻合很好
- porosity也会影响滞后，越大，滞后越大
[1] Fabrication of functionalized copper compound hierarchical structure with bionic superhydrophobic properties ↩
[2] Facile fabrication of a superamphiphobic surface on the copper substrate ↩
[3] Fabrication of functionalized copper compound hierarchical structure with bionic superhydrophobic properties ↩
[4] Thermophysical properties of high porosity metal foams ↩
[5] Experimental study of buoyancy-driven flow in open-cell aluminium foam heat sinks ↩
