The preparation and characterization of uniform nanoporous structure on glass

Abstract

<jats:p>A novel fabrication method of uniform porous structures on the glass surface is proposed. The hydrofluoric acid fog formed by air-jet atomization etches the glass surface to fabricate nanoporous structure (NPS) on glass surface. This NPS shows the enhanced average light transmittance of approximately 92.9% and the superhydrophilic property with a contact angle less than 1° which presents an excellent anti-fog property. Passivated by fluorosilane, the NPS shows nearly the superhydrophobic property with a contact angle of 141.2°. This fabrication method has shown promising application prospects due to its simplicity, low cost and efficiency, which can be easily applied to large-scale industrial production.</jats:p>

Fabrication of Superhydrophobic Nanostructures on Glass Surfaces Using Hydrogen Fluoride Gas

“…A common method to create such surfaces involves creating micro-to-nano scale structures with low surface energy. − Several approaches to impart water repellency to glass surfaces have been proposed based on the creation of nanostructures on the glass surface and the subsequent deposition of a low surface energy material. These methods can be broadly categorized into two types: nanostructure coating methods − or methods involving glass etching to create micro/nanostructures. − However, existing methods are problematic for a variety of reasons. In nanostructure coating methods, the presence of different materials on the surface layer causes bond weakening and exfoliation problems owing to differences in thermal properties.…”

“…In contrast, attempts to create water-repellent nanostructures have been made using wet etching with hydrofluoric acid solutions, a method traditionally used for glass processing. This method involves spraying a hydrofluoric acid mist onto the glass surface to perform localized etching and create pillar structures on the surface . However, although this method excels in terms of material efficiency, as it does not require a mask, the resulting contact angle is less than 150°.…”

“…This method involves spraying a hydrofluoric acid mist onto the glass surface to perform localized etching and create pillar structures on the surface. 17 However, although this method excels in terms of material efficiency, as it does not require a mask, the resulting contact angle is less than 150°. Laser ablation is another effective method for creating micro-scale structures on glass surfaces.…”

In‐situ growth of layered double hydroxide on montmorillonite nanosheets to improve the flame retardant performance of ABS resin

“…[6,12] Xu et al have added LDH to ABS, demonstrating that the addition of hydrotalcite can effectively increase the flame retardancy of ABS and has a high smoke suppression efficiency. [13] Furthermore, MMT could be a prospective cooperative flame retardant due to its superior properties involving nontoxicity and effective smoke suppression, thus remarkably improving the thermal stability and flame-retardant performance of polymer. [14,15] Wang et al have synergically applied flame retardants composed of MMT, decabromodiphenyl oxide, and antimony oxide to ABS, showing that the heat release rate of the composite has decreased by 78% compared with pure ABS.…”