Document Type : Research Paper


Department of Applied Science, University of Technology - Iraq


Superhydrophobic and hydrophobic nanocomposites coating synthesized by electrospinning, polymer solution of (PS/DMF, PMMA/THF and Si/Th) were prepared in different wt% of composition for each solutions and also prepared with addition of TiO2 nanoparticles. Coated specimens were exposed to accelerated weathering test for 6 months. The aim of this research is to study weathering changes and physical properties of these superhydrophobic and hydrophobic nanocomposites coating to demonstrate these coatings in which can keeps their hydrophobicity properties for long period of time. Viscosity, surface tension, contact angle, roughness surface and hardness tests were calculated for all specimens before and after submitted to accelerate weathering test. Also SEM shows morphology of surfaces in which that (PS/DMF) coated specimen have higher amount of bulge or beads, (PMMA/THF) coated specimen having little amount of bulge or beads and defect as compared to specimen before coating, (Si/Th) owns less bulge or beads and defect but having little percent of contaminations at the surface as compared to other coated specimen.


Main Subjects

[1] N.B. Subhas, S.C. Kundu, “Electrospinning: A
fascinating fiber fabrication technique,”
Biotechnology Advances, Vol. 28, ISSU 3, 325-347,
[2] S. Thenmozhi, N. Dharmaraj, K. Kadirvelu, H.Y.
Kim “Electrospun nanofibers: New generation
materials for advanced applications,” Review Article,
36-48, Materials Science and Engineering: B, Vol.
217, 2017.
[3] S. Huan, G. Liu, G. Han, W. Cheng, Z. Fu, Q. Wu,
Q. Wang “Effect of Experimental Parameters on
Morphological, Mechanical and Hydrophobic
Properties of Electrospun Polystyrene Fibers,”
Materials, Vol. 8, 2718-2734, 2015.
[4] J. Cui, and Y. Cui “Effects of Surface Wettability
and Roughness on the Heat Transfer Performance of
Fluid Flowing through Microchannels,” Energies
Journals, ISSN 1996, Vol. 8, 5704-5724, 2015.
[5] S. Mohammed, H. Alaaaladdin, Sh. K.
Mohammed, “Fabrication of TiO2, V2O5 Thin Film
(Super Hydrophobic Surface) By Powder Coating
Technique,” JOE, No. 2, Vol. 22, 2016.
[6] R. Azimiradi, S. Safa, “Electrospun polystyrene
fibers on TiO2 nanostructured film to enhance the
hydrophobicity and corrosion resistance of stainless
steel substrates,” PRAMANA journal of physics,
Indian Academy of Sciences, Vol. 86, No. 3, 2016.
[7] G. V. Singh, R. A. Nath, “Hydrophobic Coating of
Polymethylmetha- Crylate (PMMA) on Glass
Substrate for Reduced Bacterial Adhesion,” JOPM,
Vol. 32, Issue 4, 503-512, 2015.
[8] S.A. Hossein, S. Mehdi, J. Zhu,
“Superhydrophobic RTV silicone rubber insulator
coatings,” Applied Surface Science, Vol. 258, Issue 7,
2972-2976, 2012.
[9] X. Chen, R. Ma, J. Li, C. Hao, W. Guo, B.L. Luk,
S.C. Li, Sh.Yao, Z. Wang, “Evaporation of Droplets
on Superhydrophobic Surfaces: Surface Roughness
and Small Droplet Size Effects,” PRL 109, 2012.
[10] M. A. Najim, “Preparation and Characterization
of an Artificial Tissue Using Polymer Blend by
Electrospinning Method,” Thesis, University of
Technology, Iraq, 2015.