Bioinspired durable superhydrophobic materials with antiwear property fabricated from quartz sands and organosilane

Abstract

In this study, we present a strategy to fabricate durable superhydrophobic materials by employing organosilane surface-functionalized quartz sand particles. The quartz sand particles are bonded intimately with diethoxydimethylsilane and triethoxymethylsilane to enhance the mechanical properties of the materials. The obtained materials possess superhydrophobicity with the water contact angle of 158 ± 1°and self-cleaning ability. Moreover, the materials can endure the 6H pencil hardness test and also can keep stable superhydrophobicity under extreme environment conditions of immersion test and mechanical force. Scanning electron microscopy and water contact angle measurement were used to describe the morphological features and explain the obtained surface wettability. The chemical compositions of the materials were confirmed by Fourier-transform infrared spectrophotometer and X-ray photoelectron spectrometer. The appearance of the successful durable superhydrophobic material could yield a prospective candidate for various practical applications.

Fabrication of a Highly Stable Superhydrophobic Surface with Dual-Scale Structure and Its Antifrosting Properties

“…25 For many reported superhydrophobic surfaces, slight attrition could destroy the superhydrophobicity, and some of them could not even withstand finger touching. 31,45,46 In this paper, the aluminum plates are etched by immersing in a hydrochloric acid, resulting in the formation of a microtextured surface composed of irregular, stairlike protrusions. The etched plates then were dip-coated with SiO 2 to generate a micronanoscale rough structure.…”

Durable superhydrophobic surfaces made by intensely connecting a bipolar top layer to the substrate with a middle connecting layer

“…So there are two kinds of methods to fabricate superhydrophobic surfaces. The one is to make micro-nano hierarchical surfaces modified subsequently with low surface energy materials, and the other one is to build a micro-nano roughness with low surface energy materials directly 14 . Considerable efforts have been devoted to preparing superhydrophobic materials for various purposes.…”

“…Qu et al . employed organosilane surface-functionalized quarts sand particles to fabricate durable superhydrophobic materials 14 . Among the quarts sand particles, covalent bonds were formed with the help of condensation by hydroxyl groups.…”

A Review on Applications of Superhydrophobic Coatings

“…Due to the formation of oxides the coefficient of friction and wear resistance get significantly low [62]. With the help of polymerization and condensation and using coating material as quartz sad particles and organosilane on glass and cardboard researcher get a 158-degree contact angle and this coating has very good wear resistance properties [63]. Wear resistance study of superhydrophobic coating made of hydrophobic silica nanoparticles and acrylic resin matrix on a glass substrate or polished iron tin plate has done by Li et al, They found that when the coating was abraded with same roughness abrasive paper as that of superhydrophobic layer than it decays faster than if it abraded by more roughened abrasive paper and durability of hydrophobicity will be maintained [64].…”