Mesoporous silica-based abrasion resistant antireflective (AR)-cum-hydrophobic coatings on textured solar cover glasses by a spray coating technique

Abstract

The present work describes the fabrication of functionalized mesoporous silica based antireflective (AR)-cum-hydrophobic coatings on textured solar cover glasses by spray coating technique, exhibiting good abrasion resistant. The thicknesses of...

Room temperature curable inorganic–organic hybrid nanocomposite hydrophobic coating: mechanistic understanding of the role of Ti(iv) and the diamine based curing agent

“…The as-prepared coating layer shows absorption bands at 2863–1971 cm −1 and 1370–1458 cm −1 which are due to C–H/CH 2 stretching and bending vibrations, respectively. 38 The peaks at 1014 and 795 cm −1 are attributed to asymmetric and symmetric stretching vibrations of Si–O–Si respectively. The presence of Si–OH and epoxy is confirmed by the bands at 944 and 910 cm −1 , respectively.…”

“…[11][12][13] The vibrational band at 3742 cm À1 is attributed to the free silanol group (Si-OH) 39 and that at 1260 cm À1 is due to Si-CH 3 of PDMS. 7,38 Interestingly, for the RT curable coated film, the intensity of both -OH and epoxy peaks diminishes indicating the partial condensation reaction of Si-OH and Ti-OH along with the formation of a polyethylene oxide network through polymerization of the epoxy group in the presence of the curing agent. The appearance of the peaks at 1100-1000 cm À1 and 940-500 cm À1 indicates the formation of interlinked stretching vibration of Ti-O-C (from epoxy C) and Ti-O, respectively.…”

Facile Synthesis of ZrO2–SiO2 Antireflective Films with Good Mechanical Performances for Perovskite Solar Cells

“…The proposed reaction pathway for the preparation of ZrO 2 –SiO 2 AR films based on the reactions present in ZrO 2 and SiO 2 sols was shown in Scheme . , In the SiO 2 and ZrO 2 sols, TEOS and zirconium n -propoxide underwent hydrolysis and condensation to form small particles of SiO 2 and ZrO 2 with terminal OH groups, respectively. Then, a further condensation reaction occurred among ZrO 2 and SiO 2 particles through OH-group dehydration when the ZrO 2 sol was added into the SiO 2 sol to form a ZrO 2 –SiO 2 mixed sol.…”

Room temperature cured silver nanoparticle embedded hybrid nanocomposite coatings: processing and property evaluation

“…This method was adopted as per a survey of the literature. 28,41,42 In this test, 80 mesh sand paper was positioned on the coated surface with a load of 100 g weight and observed upon pulling the sand paper at a 1801 angle across a 4 cm travel distance on the coated surface for up to 30 cycles.…”