The Influence of Silica Nanoparticle-Based Modifying Agent on the Application of Hydrophobic Coatings

Jasim, Ali F.; Abed, Mayyadah S.; Abbas, Khalid K.

doi:10.30684/etj.v39i11.2284

	The Influence of Silica Nanoparticle-Based Modifying Agent on the Application of Hydrophobic Coatings
Engineering and Technology Journal
Article 14, Volume 39, Issue 11, November 2021, Pages 1727-1733 PDF (1.54 M)
Document Type: Research Paper
DOI: 10.30684/etj.v39i11.2284
Authors
Ali F. Jasim¹; Mayyadah S. Abed^* ²; Khalid K. Abbas¹
¹Materials Engineering Department, University of Technology-Iraq, Alsina’a Street, P.O Box 10066 Baghdad, Iraq.
²Department of Materials Engineering, University of Technology, P.O. Box 10066, Baghdad, Iraq
Abstract
This works aims to investigate the influence of three different categories of silica, namely, precipitated silica, fumed silica and nanosilica prepared via sol-gel process, for hydrophobic application in this work. Nanosilica was characterised using scanning electron microscopy, Fourier transform infrared spectroscopy, particle size and zeta potential. Diluted silicone rubber (room-temperature vulcanising silicone) was also used as a matrix for these particles as (3/1) weight%; silicone rubber/silica. Cold spraying technique was applied to coat glass substrates. Fourier transform infrared analysis was applied to investigate the coating. SEM observation and particle size analysis established that the nanosize of silica is used with narrow-size distribution. Zeta potential analysis demonstrated the stability of nanoparticles at recorded average values of −41 to −50 mV. Wettability results showed that all types of silica incorporated into the silicone rubber present a hydrophobic surface. The maximum recorded value of contact angle was 146° for sol-gel-prepared silica/silicone rubber. The out findings indicated that these compounds are acceptable candidates for hydrophobic glass applications.
Highlights
The sol-gel-prepared silica incorporated into the RTV matrix demonstrated the optimal hydrophobic surface at contact angle 146°. Zeta potential analysis demonstrated the stability of nanoparticles at recorded average values of −41 to −50 mV. Some XRD peak intensities of hydrophobic coating (RTV silicone rubber/silica) coated glass differed from the neat component (RTV or silica). XRD differences between the neat materials and their corresponding composite demonstrate satisfactory incorporation and a cohesive layer that produced significant bonding between components.
Keywords
Nanosilica; Contact angle; RTV; sol-gel method; Hydrophobic coating

References
[1] P. R. Monich, F. V. Berti, L. M. Porto, N. O. Márcio, Physicochemical and biological assessment of PEEK composites embedding natural amorphous silica fibers for biomedical applications, Mater. Sci. Eng. C, 79 (2017) 354–362, doi: 10.1016/j.msec.2017.05.031. [2] L. D. Won, B. R. Yoo, Advanced silica/polymer composites: Materials and applications, Journal of Industrial and Engineering Chemistry, 38 (2016) 1-12. [3] R. S. Dubey, Y. B. R. Rajesh, and M. A. More, Synthesis and characterization of SiO₂ nanoparticles via sol-gel method for industrial applications, Mater. Today Proc, 2 (2015) 3575–3579, doi: 10.1016/j.matpr.2015.07.098. [4] R.F.S. Lenza, E.H.M. Nunes, D.C.L. Vasconcelos, W.L. Vasconcelos, Preparation of sol–gel silica samples modified with drying control chemical additives, Journal of Non-Crystalline Solids, 423-424 (2015) 35-40. [5] I.A. Rahman, V. Padavettan, Synthesis of silica nanoparticles by sol-gel size-dependent properties, surface modification, and Applications in silica-polymer nanocomposites:A Review, Journal of Nanomaterials, 2012 (2012) 1-15. [6] B.Tuffy ,Super hydrophobic surface by simple production methods, Final year project, Dublin City University, (2008) . [7] P. Roach, N. J. Shirtcliffe, M. I. Newtona, Progress in super hydrophobic surface development, Journal The Royal Society of Chemistry, 4 (2008) 224-240, School of Biomedical and Natural Sciences, Nottingham Trent University, UK NG11 8NS. [8] N.Verplanck,Y.Coffinier,V.Thomy, R. Boukherroub,Wettbility switching techniques on superhydrophobic surfaces, Nanoscale Res Lett , 2 (2007) 577–596. [9] A.P.Torigoe ,How watcher meets a hydrophobic surface reluctantly and with fluctuations, PhD Thesis, University of Illinois at Urbana-Champaign, (2006). [10] T. Baldacchini, J. E. Carey, M. Zhou, E. Mazur, Superhydrophobic Surfaces Prepared by microstructuring of Silicon Using a Femtosecond Laser, article, Langmuir, 22 (2008) 4917-4919. [11] M. S. Diehl, Design and fabrication of out-of-plane silicon micro needles with integrated hydrophobic Micro channels, MSc Thesis, Brigham Young University,(2007). [12] W. A. Daoud, General conclusions and scope for the future research work, Chapter 10, Ceram.Soc, 87 (2004) 1782. [13] B. Little, Smart materials for advanced applications:self-decontaminating polymers, photofunctional composites, and electr oconductive fibers , PhD Auburn University, (2011). [14] T. Yeerken, G. Wang, H. Li, H. Liu, Chemical stable, superhydrophobic and self-cleaning fabrics prepared by two-step coating of a polytetrafluoroethylene membrane and silica nanoparticles, (2019), doi: 10.1177/0040517519842795. [15] B. N. Sahoo, S. Nanda, J. A. Kozinski, and S. K. Mitra, PDMS/camphor soot composite coating: towards a self-healing and a self-cleaning superhydrophobic surface, RSC Adv., 7 (2017) 15027–15040, doi: 10.1039/c6ra28581c. [16] Z. G. Yingmo Cheng , D. Miao , L.Kong , J. Jiang, Preparation and performance test of the super-hydrophobic polyurethane coating based on waste cooking oil, (2019). [17] J. Zhu and K. Liao, Preparation of superhydrophobic surface with tunable adhesion on glass substrate, Mater. Res. Express, 7 (2020) 76409, doi: 10.1088/2053-1591/aba90e. [18] Y. Peng, Z. Fang, J. Hu, B. Wang, and P. Xie, Test study on performance of endothermic highly hydrophobic anti-icing materials, J. Phys. Conf. Ser., 1659 (2020), doi: 10.1088/1742-6596/1659/1/012007. [19] H. T. Jaafar, Weathering effect on surface characteristics of superhydrophobic / hydrophobic Nanocomposites Coating, 37 (2019). [20] D. H. Ma, H. J. Wang, M. Niu, J. B. Wen, H. Wei, J. Zhou, J. P. Fan, D.H. Zhang, Oxidation behavior of amorphous silicon nitride nanoparticles, Ceram. Int., 44 (2018) 1443–1447, doi: 10.1016/j.ceramint.2017.10.022. [21] J. Kim and D. F. Lawler, Characteristics of zeta potential distribution in silica particles, KoreaScience, 26 (2005) 1083–1089. [22] J. D. Clogston and A. K. Patri, Zeta potential measurement, 697 (2011), doi: 10.1007/978-1-60327-198-1. [23] D. Hanaor, M. Michelazzi, C. Leonelli, and C. C. Sorrell, The effects of carboxylic acids on the aqueous dispersion and electrophoretic deposition of ZrO₂, J. Eur. Ceram. Soc., 32 (2012) 235–244, doi: 10.1016/j.jeurceramsoc.2011.08.015. [24] A. Kumar and C. K. Dixit, Methods for characterization of nanoparticles, Adv. Nanomedicine Deliv. Ther. Nucleic Acids, (2017) 44–58, doi: 10.1016/B978-0-08-100557-6.00003-1. [25] K. Indulekha, P. K. Behera, R. S. Rajeev, C. Gouri, and K. N. Ninan, Polyfluoroalkyl siloxanes with varying trifluoropropyl content: Synthesis, characterization and solvent resistance studies, J. Fluor. Chem., 200 (2017) 24–32, doi: 10.1016/j.jfluchem.2017.05.007. [26] J. Ji, X. Pang, R.Liu,S.Wen, J. Sun, Synthesis and characterization of room temperature vulcanized silicone rubber using methoxyl-capped MQ silicone resin as self-reinforced cross-linker, Polymers (Basel), 11 (2019), doi: 10.3390/polym11071142.
Statistics Article View: 411 PDF Download: 286