Frictional behaviors of three kinds of nanotextured surfaces

Wu, Chunxia; Jia, Junbo; Che, Hongwei; Mu, Jingbo; Zhao, Shuo; Zhang, Xiaoliang

doi:10.1002/sia.6022

Cited by 5 publications

(3 citation statements)

References 29 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…However, there are several applications where the final performance of the material is not driven by the bulk material structure but is based on the meticulous “tailoring” of its surface properties. For example, the increase of polymer surface energy through alteration of its surface chemistry can enhance its wettability and adhesion, and a proper surface texturing (roughening) can lead to enhanced friction, antireflection, and enhanced cancer cell isolation in polymeric substrates . The manipulation of both surface chemistry and topography can be especially important for the fabrication of bioinspired superhydrophobic surfaces, with various applications such as self-cleaning, anti-icing, and anti-biofouling. − …”

Section: Introductionmentioning

confidence: 99%

Atmospheric Plasma Nanotexturing of Organic–Inorganic Nanocomposite Coatings for Multifunctional Surface Fabrication

Dimitrakellis

Patsidis

Smyrnakis

et al. 2019

ACS Appl. Nano Mater.

View full text Add to dashboard Cite

We present the concept of the combined synthesis of organic−inorganic nanocomposite coatings and atmospheric pressure plasma etching/nanotexturing for tailoring the surface topography and fabricating multifunctional surfaces. As demonstration, we fabricated superhydrophobic ZnO/poly(methyl methacrylate) (PMMA) nanocomposite coatings. Composite coatings differing in ZnO content were synthesized and plasma etched in a dielectric barrier discharge operating in He/O 2 in an open-air environment. The phase selective plasma etching of organic over inorganic matter resulted in the gradual revealing of the inorganic ZnO particles, which were multisized due to agglomeration during the synthesis and plasma etching process. The creation of hierarchical topography led to the fabrication of roll-off superhydrophobic surfaces with water contact angle ∼158°and sliding angle ∼3°after the application of a low-pressure plasma deposited Teflon-like film. Moreover, we studied the optical properties of the superhydrophobic, atmospheric plasma nanotextured surfaces in terms of reflectance measurements (total, diffuse, and specular) to evaluate their possible use as antireflective surfaces.

show abstract

Section: Introductionmentioning

confidence: 99%

Atmospheric Plasma Nanotexturing of Organic–Inorganic Nanocomposite Coatings for Multifunctional Surface Fabrication

Dimitrakellis

Patsidis

Smyrnakis

et al. 2019

ACS Appl. Nano Mater.

View full text Add to dashboard Cite

show abstract

“…The materials included copper alloys, 52,100 steel, tungsten carbide, and silicon stamps, and the sliding direction played a key role in affecting the COFs. Wu et al [13] used the surface of the fluorine-doped tin oxide wafer as a nanodot-textured surface, and they also prepared the nanorod-textured surface and nanocomposite-textured surface to investigate the effects of different shapes. The nanorod-textured surface showed better adhesion and friction performances.…”

Section: Introductionmentioning

confidence: 99%

Influence of Nanoscale Textured Surfaces and Subsurface Defects on Friction Behaviors by Molecular Dynamics Simulation

Tong

Quan

Zhao³

et al. 2019

Nanomaterials

View full text Add to dashboard Cite

In nanomaterials, the surface or the subsurface structures influence the friction behaviors greatly. In this work, nanoscale friction behaviors between a rigid cylinder tip and a single crystal copper substrate are studied by molecular dynamics simulation. Nanoscale textured surfaces are modeled on the surface of the substrate to represent the surface structures, and the spacings between textures are seen as defects on the surface. Nano-defects are prepared at the subsurface of the substrate. The effects of depth, orientation, width and shape of textured surfaces on the average friction forces are investigated, and the influence of subsurface defects in the substrate is also studied. Compared with the smooth surface, textured surfaces can improve friction behaviors effectively. The textured surfaces with a greater depth or smaller width lead to lower friction forces. The surface with 45° texture orientation produces the lowest average friction force among all the orientations. The influence of the shape is slight, and the v-shape shows a lower average friction force. Besides, the subsurface defects in the substrate make the sliding process unstable and the influence of subsurface defects on friction forces is sensitive to their positions.

show abstract

“…By altering surface roughness, including nanotexturing, adhesive and friction forces can be adjusted to meet specific requirements [21]. Nanorod and nanocomposite textures can reduce the contact area between surfaces, resulting in lower adhesive and friction forces [22]. Lubricants residual in these surfaces can assist in improving the overall friction and wear behaviour thus controlling functionality dependent on the application.…”

mentioning

confidence: 99%