Please use this identifier to cite or link to this item: http://10.9.150.37:8080/dspace//handle/atmiyauni/984
Title: Droplet investigation on hydrophobic artificial and natural surfaces: Molecular weight and viscosity of polymer effects the droplet distortion
Authors: Tank, Ravi
Khistariya, Anand
Keywords: Natural and artificial hydrophobic surfaces
contact angle
Wenzel effect
Viscosity
molecular weight
water droplet behaviour
Issue Date: Feb-2022
Publisher: Journal of Chemistry and Chemical Sciences(An International Research Journal)
Citation: Khistariya, A., & Tank, R. Droplet Investigation on Hydrophobic Artificial and Natural Surfaces: Molecular Weight and Viscosity of Polymer Effects the Droplet Distortion.Journal of Chemistry and Chemical Sciences(An International Research Journal),12(2),28-42
Abstract: Contact angle measurement of water, benzyl alcohol, ethylene glycol and glycerol are performed on hydrophobic surfaces of six polymers and four natural surfaces. We performed drop impacts dynamic of water droplets on an artificial polymer hydrophobic surfaces and natural hydrophobic surfaces with different impact velocities. Highest spread length and oscillations were observed on both high-density polyethylene (MI 42) and polypropylene (Bolton) due to the Wenzel regime. Two impacts, sticking and deposition was identified on the polymer samples due to the low static contact angles. Rebound, splashing, fragmentation and vibrational oscillations were observed due to the micro scale roughness on the natural surfaces. Highest static contact angle of water droplet (86.2±2.1) and lowest viscosity was obtained on polyethylene (Mw 35k) surface. Lowest static contact angle (79.9±2.8) and highest viscosity was observed on polypropylene surface. Furthermore, highest static contact angle of water drop (118.02±7.46) was observed on Purple sage (Leucophyllum frutescens) surface and lowest static contact angle (98.38±4.91) was observed on Eucalyptus (Corymbia) surface. The viscosity and critical surface energy of the polymer samples were also measured and discussed.
Description: The authors are thankful to Central Instrumentation Facility Laboratory of Atmiya University for providing laboratory and instrumentation facility.
URI: http://10.9.150.37:8080/dspace//handle/atmiyauni/984
ISSN: 2319-7625
Appears in Collections:01. Journal Articles

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