Effect of Surface Microstructure on the Long-term Anti-bacterial Performance for Slippery Liquid Infused Porous Surfaces

Author(s):  
Guangyi Cai ◽  
Qi Zeng ◽  
Tianzhun Wu
2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Davide Bottone ◽  
Valentina Donadei ◽  
Henna Niemelä ◽  
Heli Koivuluoto ◽  
Stefan Seeger

AbstractPassive icephobic surfaces can provide a cost and energy efficient solution to many icing problems that are currently handled with expensive active strategies. Water-repellent surface treatments are promising candidates for this goal, but commonly studied systems, such as superhydrophobic surfaces and Slippery Liquid Infused Porous Surfaces (SLIPS), still face challenges in the stability and durability of their properties in icing environments. In this work, environmental icing conditions are simulated using an Icing Wind Tunnel, and ice adhesion is evaluated with a Centrifugal Adhesion Test. We show that superhydrophobic coral-like Silicone Nanofilament (SNF) coatings exhibit extremely low ice adhesion, to the point of spontaneous ice detachment, and good durability against successive icing cycles. Moreover, SNFs-based SLIPS show stably low ice adhesion for the whole duration of the icing test. Stability of surface properties in a cold environment is further investigated with water wettability at sub-zero surface temperature, highlighting the effect of surface chemistry on superhydrophobicity under icing conditions.


2018 ◽  
Vol 10 (5) ◽  
pp. 4548-4560 ◽  
Author(s):  
Grazyna Stepien ◽  
María Moros ◽  
Marta Pérez-Hernández ◽  
Marta Monge ◽  
Lucía Gutiérrez ◽  
...  

2012 ◽  
Vol 40 (5) ◽  
pp. 416-422 ◽  
Author(s):  
Florian J. Wegehaupt ◽  
Tobias T. Tauböck ◽  
Beatrice Sener ◽  
Thomas Attin

2012 ◽  
Vol 74 (4) ◽  
pp. 777-780 ◽  
Author(s):  
Jianfang Wang ◽  
Jian Feng ◽  
Xiaorong Zou ◽  
Yin Long ◽  
Xiaozhou Tian

2007 ◽  
Vol 7 (11) ◽  
pp. 3827-3829 ◽  
Author(s):  
Heang Sin Jang ◽  
Dong-Wha Park ◽  
Sang Eun Shim

The dispersion stability of nano-sized carbon black produced by a thermal plasma process was investigated using a novel multiple light scattering method. The effect of surface modification of carbon black on the dispersion stability was monitored in various polar and non-polar liquids including water, methanol, styrene, and toluene. The results show that carbon black functionalized with carboxylic anion groups has much improved colloidal stability in a polar solvent and the degree of dispersion stability is strongly related to the solubility parameter value of liquids. In addition, the carbon black with carboxylic anions has a long-term stability without any auxiliary dispersion agent such as a surfactant due to electrostatic repulsion.


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