Abstract
A nanodispersion of surface-functionalized fumed silica was incorporated into an acrylic paint formulation. SEM imaging indicated good dispersion of silica within the polymer matrix. This hybrid coating showed significantly lower dirt pick-up than the equivalent paint formulation without nanosilica additive, towards both organic and inorganic ashes. Washing with running water further decreases dirt retention. This self-cleaning performance remained unchanged after several dirt/washing cycles, during a 1-month period. Surface hardness measurements indicated no significant differences between the original and composite paint films. The lower dirt pick-up was attributed to nanoroughness created by the nanosilica particles present in the film.
Similar content being viewed by others
References
Parkin, I, Palgrave, R, “Self-cleaning coatings.” J. Mater. Chem., 15 1689–1695 (2005)
Benedix, R, Dehn, F, Quaas, J, Orgass, M, “Application of Titanium Dioxide Photocatalysis to Create Self-Cleaning Building Materials”, Leipzig Annual Civil Engineering Report (LACER) No. 5, pp. 157–167 (2000)
Nakajima, A, Hashimoto, K, Taka, TWK, Yamauchi, G, Fujishima, A, “Transparent Superhydrophobic Thin Films with Self-Cleaning Properties.” Langmuir, 16 7044–7047 (2000)
Yang, J, Pi, P, Wen, X, Zheng, D, Xu, M, Cheng, J, Yang, Z, “A Novel Method to Fabricate Superhydrophobic Surfaces Based on Well-Defined Mulberry-Like Particles and Self-Assembly of Polydimethylsiloxane.” Appl. Surf. Sci., 255 3507–3512 (2009)
Lee, S, Kim, D, Hwang, W, “Artificial Lotus Leaf Structures made by Blasting with Sodium Bicarbonate.” Curr. Appl. Phys., 11 800–804 (2011)
Mizutani, T, Arai, K, Miyamoto, M, Kimura, Y, “Application of Silica-Containing Nano-Composite Emulsion to Wall Paint: A New Environmentally Safe Paint of High Performance.” Prog. Org. Coat., 55 276–283 (2006)
Yang, H, Zhu, W, “Effects of Fumed Silica on Viscosity of Acrylic Latex System.” J. Dispersion Sci. Technol., 27 789–794 (2006)
Williams, R (ed.), Colloid and Surface Engineering: Applications in the Process Industries. Butterworths, Oxford, 1992
Posthumus, W, Magusin, P, Brokken-Zijp, J, Tinnemans, A, van der Linde, R, “Surface Modification of Oxidic Nanoparticles Using 3-Methacryloxypropyl-Trimethoxysilane.” J. Colloid Interface Sci., 269 109–116 (2004)
Tiarks, F, Leuninger, J, Wiese, H, Schuler, B, “Nanocomposite Dispersions—An Innovative Approach in Water-Based Coatings.” Proceedings of Eurocoat 2005, Lyon, France, September 27–29
Hartwig, A, Sebald, M, Pütz, D, Aberle, L, “Preparation, Characterization and Properties of Nanocomposites Based on Epoxy Resins—An Overview.” Macromol. Symp., 221 27–135 (2005)
Carneiro, C, Vieira, R, Mendes, A, Magalhães, FD, “Preparation and Characterization of Acrylic Polymer Nanocomposite Films Obtained from Aqueous Dispersions.” J. Appl. Polym. Sci., (2012) (accepted)
Yan, W, Han, ZJ, Ostrikov, K, “Surface Insulation Performance of Epoxy Resin/Silica Nanocomposite Material.” Electrical Insulation Conference, Annapolis, USA, 5–8 June 2011
Zhou, S, Gu, G, Weidian, S, Guangxin, G, “Study on the Morphology and Tribological Properties of Acrylic Based Polyurethane/Fumed Silica Composite Coatings.” Physics, 9 1593–1600 (2004)
Istaván, B, “Pressure Sensitive Formulation.” VSP BV, Zheist, p. 68, 2000
Acknowledgments
Funding for this study was provided by FEDER, through Programa Operacional Factores de Competitividade—COMPETE, and by national funding through FCT—Fundação para a Ciência e a Tecnologia, in the framework of projects PTDC/EQU-EQU/65300/2006 and FCOMP010202FEDER005291. Catarina Carneiro thanks FCT for PhD grant SFRH/BDE/15569/2005. The authors also wish to thank ARCP (Polymer Competences Network) for providing laboratory facilities for part of this study.
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Carneiro, C., Vieira, R., Mendes, A.M. et al. Nanocomposite acrylic paint with self-cleaning action. J Coat Technol Res 9, 687–693 (2012). https://doi.org/10.1007/s11998-012-9407-9
Published:
Issue Date:
DOI: https://doi.org/10.1007/s11998-012-9407-9