Various curing conditions for controlling PTFE micro/nano-fiber texture of a bionic superhydrophobic coating surface

2010 ◽  
Vol 119 (1-2) ◽  
pp. 40-47 ◽  
Author(s):  
Zhuangzhu Luo ◽  
Zhaozhu Zhang ◽  
Wenjing Wang ◽  
Weimin Liu ◽  
Qunji Xue
2021 ◽  
Vol 44 (2) ◽  
Author(s):  
Jinyu Chen ◽  
Junwu Chen ◽  
Lee Li ◽  
Shengwu Wang ◽  
Yi Xie

2008 ◽  
Vol 20 (5) ◽  
pp. 970-974 ◽  
Author(s):  
Z. Z. Luo ◽  
Z. Z. Zhang ◽  
L. T. Hu ◽  
W. M. Liu ◽  
Z. G. Guo ◽  
...  

Aerospace ◽  
2021 ◽  
Vol 8 (8) ◽  
pp. 219
Author(s):  
Mitsugu Hasegawa ◽  
Haruka Endo ◽  
Katsuaki Morita ◽  
Hirotaka Sakaue ◽  
Shigeo Kimura

A hybrid anti-/de-icing system combining a superhydrophobic coating and an electrothermal heater is an area of active research for aircraft icing prevention. The heater increases the temperature of the interaction surface between impinging droplets and an aircraft surface. One scientific question that has not been studied in great detail is whether the temperatures of the droplet and the surface or the temperature difference between the two dominate the anti-/de-icing performance. Herein, this scientific question is experimentally studied based on the mobility of a water droplet over a superhydrophobic coating. The mobility is characterized by the sliding angle between the droplet and the coating surface. It was found that the temperature difference between the droplet and the coating surface has a higher impact on the sliding angle than their individual temperatures.


2018 ◽  
Vol 13 (8) ◽  
pp. 1159-1164
Author(s):  
Jing Li ◽  
Fengyu Fan ◽  
Qiang Li ◽  
Feng Du ◽  
Huadong Yu

TAPPI Journal ◽  
2016 ◽  
Vol 15 (4) ◽  
pp. 253-262 ◽  
Author(s):  
ERIK BOHLIN ◽  
CAISA JOHANNSON ◽  
MAGNUS LESTELIUS

The effect of coating structure variations on flexographic print quality was studied using pilot-coated paperboard samples with different latex content and latex particle sizes. Two latexes, with particle sizes of 120 nm and 160 nm, were added at either 12 parts per hundred (pph) or 18 pph to the coating formulation. The samples were printed with full tone areas at print forces of 25 N and 50 N in a laboratory flexographic printing press using a waterbased ink. A high ratio of uncovered areas (UCAs) could be detected for the samples that contained 18 pph latex printed at a print force of 25 N. UCAs decreased with increased print force and with decreased amounts of latex in the coating formulation. The fraction of latex covered area on the coating surface was estimated to be 0.35–0.40 for the 12 pph, and 0.70–0.75 for the 18 pph samples. The ink penetration depth into the coating layer could be linked to the fraction of latex-free areas on the coating surface. Optical cross section microscopy indicated that a higher printing force did not increase the depth of penetrated ink to any greater extent. Higher printing force did increase contact between plate and substrate, leading to an improved distribution of the ink. This, in turn, increased print density and decreased UCAs. On closer inspection, the UCAs could be categorized as being induced by steep topographic changes. When appearing at other locations, they were more likely to be caused by poor wetting of the surface. To understand the wetting behavior of the coating surface, observed contact angles were compared with calculated contact angles on surfaces of mixed composition.


2012 ◽  
Vol 2 (3) ◽  
pp. 178-180 ◽  
Author(s):  
Shankar H Sanni ◽  
◽  
Dr. R. B. Khadiranaikar Dr. R. B. Khadiranaikar

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