Variation of coating thickness in blade coating process of an upper-convected Jeffery’s fluid model

2021 ◽  
Author(s):  
Zaheer Abbas ◽  
Sabeeh Khaliq
Keyword(s):  
Coating Thickness ◽  
Fluid Model ◽  
Coating Process ◽  
Blade Coating

Non-isothermal blade coating analysis of viscous fluid with temperature-dependent viscosity using lubrication approximation theory

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Sabeeh Khaliq ◽  
Zaheer Abbas
Keyword(s):  
Temperature Distribution ◽  
Viscous Fluid ◽  
Coating Thickness ◽  
Maximum Pressure ◽  
Coating Process ◽  
Lubrication Approximation ◽  
Temperature Dependent ◽  
Temperature Dependent Viscosity ◽  
Dependent Viscosity ◽  
Blade Coating

Abstract Blade coating process is studied in a nonisothermal analysis of viscous fluid with temperature-dependent viscosity by employing both plane and exponential coaters. The governing expressions are nondimensionalized and simplified under the assumption of lubrication approximation theory. Then, perturbative technique is used to find the solution for velocity, pressure, temperature distribution, and coating thickness. The influence of dimensionless parameter ε, Graetz number Gz, and normalized coating thickness γ on the velocity, maximum pressure, temperature distribution, and pressure gradient is portrayed through graphs, whereas load and coating thickness variations reported in a tabular manner. It is found that maximum pressure, coating thickness, and blade load decreases for temperature variations in viscosity, which leads to improved efficiency of blade coating process and life of the moving substrate.

Coating Nano-TiO2 on Optical Fiber with Al(H2PO4)3 Adhesive

2007 ◽  
Vol 280-283 ◽  
pp. 485-488 ◽  
Author(s):  
Yu Hong Zhao ◽  
Jia Chen Liu ◽  
Shun Li ◽  
Yi Rong Liu
Keyword(s):  
Optical Fiber ◽  
Process Parameters ◽  
Coating Thickness ◽  
Fiber Surface ◽  
Tio2 Coating ◽  
Experimental Results ◽  
Coating Process ◽  
High Quality ◽  
Tio2 Photocatalysis

To meet the need of optical fiber photoreactor designed by mechanism of TiO2 photocatalysis, nanometer TiO2 was coated on the surface of optical fiber by dipping nude fibers into an Al(H2PO4)3-contained TiO2 slurry. Effects of slurry conditions, including content of TiO2 and addition of Al(H2PO4)3 adhesive, on coating thickness and quality were determined. Coating process, especially the effect of coating times, was also concerned. Based on the experimental results, fitting slurry conditions and process parameters were suggested for obtaining high-quality TiO2 coating on optical fiber surface.

Development of Subambient Pressures and Cavitation in the Blade Coating Process

1997 ◽  
Vol 36 (7) ◽  
pp. 2834-2840 ◽  
Author(s):  
P. Isaksson ◽  
M. Rigdahl ◽  
D. W. Bousfield
Keyword(s):  
Coating Process ◽  
Blade Coating

The Study of the Blade Coating Process Lubricated with Powell-Eyring Fluid

2018 ◽  
Vol 7 (1) ◽  
pp. 52-61 ◽  
Author(s):  
M. A. Rana ◽  
A. M. Siddiqui ◽  
S. Bhatti ◽  
M. Zahid
Keyword(s):  
Coating Process ◽  
Blade Coating

Ink formulation for organic photovoltaic active layers using non-halogenated main solvent for blade coating process

2020 ◽  
Vol 269 ◽  
pp. 116513
Author(s):  
Badrou Reda Aïch ◽  
Jianping Lu ◽  
Simona Moisa ◽  
Raluca Movileanu ◽  
Eric Estwick ◽  
...  
Keyword(s):  
Organic Photovoltaic ◽  
Coating Process ◽  
Active Layers ◽  
Blade Coating ◽  
Ink Formulation

Two-step sequential blade-coating of high quality perovskite layers for efficient solar cells and modules

2020 ◽  
Vol 8 (17) ◽  
pp. 8447-8454 ◽  
Author(s):  
Junwen Zhang ◽  
Tongle Bu ◽  
Jing Li ◽  
Hengyi Li ◽  
Yanping Mo ◽  
...  
Keyword(s):  
Solar Cells ◽  
High Efficiency ◽  
Perovskite Solar Cells ◽  
Coating Process ◽  
High Quality ◽  
Blade Coating

A two-step sequential blade-coating process in air to fabricate high-efficiency perovskite solar cells and modules.

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