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| Shape-gradient composite surfaces: Water droplets move uphill | |
| Zhang, Jilin; Han, Yanchun | |
| 2007-05-22 | |
| Source Publication | LANGMUIR
 |
| ISSN | 0743-7463 |
| Volume | 23Issue:11Pages:6136-6141 |
| Abstract | The approach of water droplets self-running horizontally and uphill without any other forces was proposed by patterning the shape-gradient hydrophilic material (i.e., mica) to the hydrophobic matrix (i.e., wax or low-density polyethylene (LDPE)). The shape-gradient composite surface is the best one to drive water droplet self-running both at the high velocity and the maximal distance among four different geometrical mica/wax composite surfaces. The driving force for the water droplets self-running includes: (1) the great difference in wettability of surface materials, (2) the low contact angle hysteresis of surface materials, and (3) the space limitation of the shape-gradient transportation area. Furthermore, the average velocity and the maximal distance of the self-running were mainly determined by the gradient angle (alpha), the droplet volume, and the difference of the contact angle hysteresis. Theoretical analysis is in agreement with the experimental results. |
| DOI | 10.1021/la063376k |
| Indexed By | SCI |
| Language | 英语 |
| WOS ID | WOS:000246456700042 |
| Publisher | AMER CHEMICAL SOC |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.iccas.ac.cn/handle/121111/62838 |
| Collection | 中国科学院化学研究所 |
| Corresponding Author | Han, Yanchun |
| Affiliation | Chinese Acad Sci, Changchun Inst Appl Chem, Grad Univ, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China |
| Recommended Citation GB/T 7714 | Zhang, Jilin,Han, Yanchun. Shape-gradient composite surfaces: Water droplets move uphill[J]. LANGMUIR,2007,23(11):6136-6141. |
| APA | Zhang, Jilin,&Han, Yanchun.(2007).Shape-gradient composite surfaces: Water droplets move uphill.LANGMUIR,23(11),6136-6141. |
| MLA | Zhang, Jilin,et al."Shape-gradient composite surfaces: Water droplets move uphill".LANGMUIR 23.11(2007):6136-6141. |
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