Ning Wang , Yushun Zhao , Zhenxing Cao , Gong Cheng , Junjiao Li , Guoxin Zhao , Yuna Sang , Chao Sui , Xiaodong He , Chao Wang
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引用次数: 0
Abstract
In recent times, the bonded graphene and carbon nanotubes (CNTs) hybrid (BGCH) film has garnered considerable attention due to its exceptional mechanical, thermal, and electrical properties. Its inherent hydrophobic characteristics render it promising for diverse applications such as seawater desalination and anti-icing strategies. However, the wettability, particularly the dynamics of water droplet impact on the film surface, remains unclear. In this study, employing molecular dynamics simulations, we constructed a model of the BGCH film and observed four distinct impact phenomena (ball bouncing, spreading, retraction, pancake bouncing) when water droplets struck BGCH with short CNTs. Notably, at a velocity of 12 Å/ps, a pancake bouncing pattern emerged, markedly reducing the duration of solid–liquid contact. Moreover, the impact behaviors were found to be intricately linked to the structural parameters and inclined impact induced droplet flow on the substrate surface, augmenting the contact time. Furthermore, longer CNTs dissipated more energy from the water droplet through structural deformation. This work systematically investigates the nanodroplet bouncing behaviors of BGCH, providing theoretical insights for their applications in hydrophobicity fields.
期刊介绍:
The goal of Computational Materials Science is to report on results that provide new or unique insights into, or significantly expand our understanding of, the properties of materials or phenomena associated with their design, synthesis, processing, characterization, and utilization. To be relevant to the journal, the results should be applied or applicable to specific material systems that are discussed within the submission.