Oblique impacts of water nanodroplets on superhydrophobic surfaces: A molecular dynamics study

Han, Ning-Ning; Sun, Bao-Min; He, Xin

doi:10.1016/j.molliq.2022.120074

Cited by 8 publications

(1 citation statement)

References 38 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Zhang et al observed the surface of coal with different degrees of coalification, and the variation trend of surface wettability was discussed by molecular dynamics. Han et al discussed the effect of inclination angle on contact time and sliding length by molecular dynamics simulation, which found that weakening of the adhesion effect between liquid and surfaces would lead to disappearance of the asymmetric behavior of nanodroplets in the diffusion process. Generally, molecular dynamics has become the third most effective scientific research tool in addition to theoretical and experimental studies in the modern scientific research process.…”

Section: Introductionmentioning

confidence: 99%

Preparation of a Stable Superhydrophobic Mortar Surface Using a One-Step Method

Han,

Liu,

Xia

et al. 2023

Langmuir

View full text Add to dashboard Cite

Research efforts have intensified on developing superhydrophobic surfaces on concrete structures to limit the damage caused by the natural porosity and hydrophilicity of cementitious materials. However, the feasibility idea is impeded by the complex preparation process and weak adhesion/stability performance. Therefore, superhydrophobic coatings were rapidly prepared on mortar surfaces by a straightforward and effective one-step method using zinc oxide (ZnO) modified with stearic acid and epoxy resin. The microstructure, physical/chemical properties, hydrophobic properties, and stability of the coatings were systematically investigated. The experimental results showed that the water contact angle of the samples reached a maximum value of 164.2° and a sliding angle of 4.6° when the stearic acid content was 0.5 g. The water absorption of the coated superhydrophobic mortar was reduced by approximately 61% compared to that of ordinary mortar, and neither particulate pollutants nor liquid pollutants could contaminate the superhydrophobic mortar. The coating maintained a superhydrophobic state and exhibited good physical durability after sandpaper abrasion, tape peeling, and high-temperature resistance tests. The water cluster diffusion coefficient on surface of the ordinary coating was 0.1645 × 10–4 and 0.0328 × 10–4 cm2/s on surface of the modified coating after molecular dynamics simulation.

show abstract

Section: Introductionmentioning

confidence: 99%