For the liquid with 42 dyn cm 1 surface tension, the wetting behavior followed behavior between the CassieWenzel state and CassieCassie state depending on the aspect ratio of the nano-scale roughness. With an increased etching time of 7 min or longer, the actual contact angles were measured to be larger than those predicted using the Effect of Hydrofluoric Acid Etching Time on ium Nov 08, 2016 · Roughness and wetting increased with longer etching time except at 10 min, when roughness increased but wetness decreased. Skewness became negative after etching and kurtosis tended to 3 with longer etching time. Highest cell adhesion was achieved after 57 min of etching time.
Oct 06, 2014 · It was observed that the voltage and etching time highly influence the surface wettability. The surface treatment up to optimal etching time also enhances the mechanical and fracture properties. Chung et al. 21 analyzed the effect of CFRP surface treatment on properties of CFRP/aluminum foam composites. The oxygen plasma surfacetreated CFRP composites showed Effect of acid etching and collagen removal on dentin Average roughness was determined with a profilometer. The specimens were analyzed just after being ground, after etching with 35% H 3 PO 4 gel for 15 s, and after etching and deproteinization with 5% NaOCl for 2 min. Data were analyzed with twoway ANOVA and NewmanKeuls multiple comparison t test procedure. Etching resulted in an increase in surface roughness and dentin wettability. Effect of acid etching on dentin wettability and roughness Jan 01, 2008 · The roughening effect of the self-etching adhesives was more evident for AdheSE and Xeno III. Conclusions Self-etching primers and phosphoric acid promote similar water wettability increase. However, self-etching primers provided lower dentin roughness increase than pretreatment with phosphoric acid.
with a varied surface roughness are fabricated by etching with hydrochloric acid on aluminum sheets (99.3%, 120 mm × 50 mm × 4 mm). This is achieved by using deionized water (DI) and hydrochloric acid (HCl 30%) with a volume ratio of 4:1, and the surface roughness is controlled by the etching time. In order to obtain a clean surface, the aluminum Fabrication of template with dualscale structures based May 01, 2014 · Based on the theory above, the effect of surface roughness on wettability is analysed quantitatively. If only the ordered microstructure on the fabricated surface is considered, the analytical geometry model is as shown in Fig. 6, in which w is the groove width and g is the gap between the adjacent grooves. Micron and submicron scale parameters affecting the The study parameters included:1. The effect of acid etching duration on the surface topography, roughness and wettability 2. The effect of surface neutralization on the wettability of silanes (silane coupling agents), adhesive resin and resin composite cement 3. The degree of resin impregnation into the etched micro-patterns 4.
Researchers have been trying to discuss the wetting phenomenon for a long time but the complexity of this multi-scale phenomenon still has left much to be understood. Since Wenzel reported the effect of roughness on surface wettability  , researchers found the way to enhance the wetting by modifying the surface roughness. Profile Characterization and Temperature Effect on the to discuss the wetting phenomenon for but the complexity of this a long time multi-scale phenomenon still has left much to be understood. Since Wenzel reported the effect of roughness on surface wettability , re-searchers found the way to enhance the wetting by modifying the surface roughness. Roughness and wettability effect on histological and Mar 09, 2016 · The surface characteristics, roughness and wettability, were also measured, onto modified Ti c.p. discs. Acid-etched mini-implants (R a 1.7 m, contact angle (CA) 66°) significantly improved the bone-to-implant parameter, 26 %, compared to as-machined mini-implants (R a 0.3 m, CA 68°, BIC = 19 %) due to its roughness.
The Effect of Hydrofluoric Acid Etching Duration on the The Influence of Structure Heights and Opening Angles of Feb 19, 2016 · Reactive ion etching (RIE) is a dry etching technique that can be used to structure silicon surfaces without masks through the combined effect of a corrosive gas (SF 6 and/or CH 4) and a (PDF) The Effect of Hydrofluoric Acid Etching Duration on May 27, 2016 · roughness and wettability was observed with an increase in the etching duration. The ndings also suggested a strong association between the surface roughness and wettability .