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Published in: Journal of Coatings Technology and Research 2/2021

05-01-2021

On the stratification mechanism of self-stratifying epoxy–acrylic coatings

Authors: Ali Abbasian, S. Ekbatani, N. Bagherzadeh

Published in: Journal of Coatings Technology and Research | Issue 2/2021

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Abstract

To shed light on the self-stratification mechanism in epoxy–acrylic coatings, 200-, 400-, and 800-micron-thick coatings were applied on glass and aluminum substrates, and their solidification behavior was studied. Some of the applied coats showed self-stratification behavior, with the thermoplastic acrylic copolymer in the top layer. In addition, experiments were performed on epoxy–acrylic solutions without hardeners to evaluate the resulting convective patterns on the solution surface, which exhibited finger-type convection. The final structure of the films had an apparent dependency on the thickness. Thicker films were usually more stratified and had a thicker stratified layer. As these observations could not support diffusion as the primary mechanism of self-stratification, convection experiments were done on epoxy and coatings solutions. The surface patterns on the solutions were studied, and the finger-type convection was observed. Based on these observations, we propose that convection may be the primary movement mechanism rather the diffusion of polymers toward the surface in the self-stratifying coats.

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Literature
1.
go back to reference Verkholantsev, V, “Self-Stratifying Coatings.” ECJ, 12 707–712 (2000) Verkholantsev, V, “Self-Stratifying Coatings.” ECJ, 12 707–712 (2000)
2.
go back to reference Waldbrige, DJ, “Self Stratifying Coating—An Overview of a European Community Research Project.” Prog. Org. Coat., 28 155–159 (1996) CrossRef Waldbrige, DJ, “Self Stratifying Coating—An Overview of a European Community Research Project.” Prog. Org. Coat., 28 155–159 (1996) CrossRef
3.
go back to reference Beaugendre, A, Degoutin, S, Bellayer, S, Pierlot, C, Duquesne, S, Casetta, M, et al., “Self-Stratifying Coatings: A Review.” Prog. Org. Coat., 110 210–241 (2017) CrossRef Beaugendre, A, Degoutin, S, Bellayer, S, Pierlot, C, Duquesne, S, Casetta, M, et al., “Self-Stratifying Coatings: A Review.” Prog. Org. Coat., 110 210–241 (2017) CrossRef
4.
go back to reference Benjamin, S, Carr, C, Waldbridge, DJ, “Self Stratify Coating for Metallic Substrates.” Prog. Org. Coat., 28 197–207 (1996) CrossRef Benjamin, S, Carr, C, Waldbridge, DJ, “Self Stratify Coating for Metallic Substrates.” Prog. Org. Coat., 28 197–207 (1996) CrossRef
5.
go back to reference Funke, W. Book Review: X. FATIPEC-Kongressbuch (10th FATIPEC Congress Report). 1970. Edited by the Scientific Committee of the 10th FATIPEC Congress. Angewandte Chemie International Edition in English. 1971;10(3):205–205. Funke, W. Book Review: X. FATIPEC-Kongressbuch (10th FATIPEC Congress Report). 1970. Edited by the Scientific Committee of the 10th FATIPEC Congress. Angewandte Chemie International Edition in English. 1971;10(3):205–205.
6.
go back to reference Verkholantsev, V, “Nonhomogeneous-In-Layer Coatings.” Prog. Org. Coat., 13 (2) 71–96 (1985) CrossRef Verkholantsev, V, “Nonhomogeneous-In-Layer Coatings.” Prog. Org. Coat., 13 (2) 71–96 (1985) CrossRef
7.
go back to reference Zroll, VU, "Bildung von mehrschichten-lackirungen bei einmaligem Materialauftrag." Farbe+Lack, 11 801–803 (1989) Zroll, VU, "Bildung von mehrschichten-lackirungen bei einmaligem Materialauftrag." Farbe+Lack, 11 801–803 (1989)
8.
go back to reference Toussaint, A, “Self-Stratifying Coatings for Plastic Substrates.” Prog. Org. Coat., 28 183–195 (1996) CrossRef Toussaint, A, “Self-Stratifying Coatings for Plastic Substrates.” Prog. Org. Coat., 28 183–195 (1996) CrossRef
9.
go back to reference Verkholantsev, V, “Heterophase and Self-Stratifying Polymer Coatings.” Progr. Org. Coat., 26 (1) 31–52 (1995) CrossRef Verkholantsev, V, “Heterophase and Self-Stratifying Polymer Coatings.” Progr. Org. Coat., 26 (1) 31–52 (1995) CrossRef
10.
go back to reference Carr, C, Benjamin, S, Walbridge, DJ, “Fluorinated Resins in Self-Stratifying Coatings.” ECJ, 4 262–266 (1995) Carr, C, Benjamin, S, Walbridge, DJ, “Fluorinated Resins in Self-Stratifying Coatings.” ECJ, 4 262–266 (1995)
11.
go back to reference Beaugendre, A, Degoutin, S, Bellayer, S, Pierlot, C, Duquesne, S, Casetta, M, Jimenez, M, “Self-Stratifying Epoxy/Silicone Coatings.” Prog. Org. Coat., 103 101–110 (2017) CrossRef Beaugendre, A, Degoutin, S, Bellayer, S, Pierlot, C, Duquesne, S, Casetta, M, Jimenez, M, “Self-Stratifying Epoxy/Silicone Coatings.” Prog. Org. Coat., 103 101–110 (2017) CrossRef
12.
go back to reference Misev, TA, “Thermodynamic Analysis of Phase Separation in Self-Stratify Coatings: Solubility Parameters Approach.” J. Coat. Technol., 63 (795) 23–28 (1991) Misev, TA, “Thermodynamic Analysis of Phase Separation in Self-Stratify Coatings: Solubility Parameters Approach.” J. Coat. Technol., 63 (795) 23–28 (1991)
13.
go back to reference Funke, W, “Preparation and Properties of Paint Films with Special Morphological Structure.” J. Oil Colour Chem. Assoc., 59 398–403 (1976) Funke, W, “Preparation and Properties of Paint Films with Special Morphological Structure.” J. Oil Colour Chem. Assoc., 59 398–403 (1976)
14.
go back to reference Murase, H., Funke, W. "Formation of Two-Phase Coatings from a Mixture of Powdered Polymers." In Congress Book, XVth FATIPEC Congress, 8–13 June 1980, Amsterdam: 3E-Activities; Netherlands Association of Coatings Technologists NVVT, Amsterdam, The Netherlands, 1980; Vol. 2, pp. 387–409. Murase, H., Funke, W. "Formation of Two-Phase Coatings from a Mixture of Powdered Polymers." In Congress Book, XVth FATIPEC Congress, 8–13 June 1980, Amsterdam: 3E-Activities; Netherlands Association of Coatings Technologists NVVT, Amsterdam, The Netherlands, 1980; Vol. 2, pp. 387–409.
15.
go back to reference Verkholantsev, V, “Coatings Based on Polymer-Polymer Composites.” Prog. Org. Coat., 18 43–77 (1990) CrossRef Verkholantsev, V, “Coatings Based on Polymer-Polymer Composites.” Prog. Org. Coat., 18 43–77 (1990) CrossRef
16.
go back to reference Verkholantsev, V, “Coatings Based on Polymer/Polymer Composites.” J. Coat. Technol., 64 (809) 51–59 (1992) Verkholantsev, V, “Coatings Based on Polymer/Polymer Composites.” J. Coat. Technol., 64 (809) 51–59 (1992)
17.
go back to reference Carr, C, “Multilayered Paint Films From Single Coat Systems.” J. Oil Colour Chem Assoc., 10 403–404 (1990) Carr, C, “Multilayered Paint Films From Single Coat Systems.” J. Oil Colour Chem Assoc., 10 403–404 (1990)
18.
go back to reference Carr, C, Wallstom, E, “Theoretical Aspects of Self-Stratification.” Prog. Org. Coat., 28 161–171 (1996) CrossRef Carr, C, Wallstom, E, “Theoretical Aspects of Self-Stratification.” Prog. Org. Coat., 28 161–171 (1996) CrossRef
19.
go back to reference Abbasian, A, Ekbatani, S, “Resin Migration Tracking Via Real-Time Monitoring FTIR- ATR in a Self-Stratifying System.” Progr. Org. Coat., 131 159–164 (2019) CrossRef Abbasian, A, Ekbatani, S, “Resin Migration Tracking Via Real-Time Monitoring FTIR- ATR in a Self-Stratifying System.” Progr. Org. Coat., 131 159–164 (2019) CrossRef
20.
go back to reference Toussaint, G, Bodiguel, H, Allain, C, “Experimental Characterization of Buoyancy- and Surface Tension-Driven Convection During the Drying of a Polymer Solution.” Int. J. Heat Mass Transf., 51 4228–4237 (2008) CrossRef Toussaint, G, Bodiguel, H, Allain, C, “Experimental Characterization of Buoyancy- and Surface Tension-Driven Convection During the Drying of a Polymer Solution.” Int. J. Heat Mass Transf., 51 4228–4237 (2008) CrossRef
21.
go back to reference Wimmer, M., Koschmieder, E. L., Bénard Cells and Taylor Vortices. Cambridge etc., Cambridge University Press 1993. X, 337 pp., & 35.00. ISBN 0-521-40204-2 (Cambridge Monographs on Mechanics and Applied Mathematics). ZAMM J. Appl. Math. Mech./Zeitschrift für Angewandte Mathematik und Mechanik. 1994;74(10):458–458. Wimmer, M., Koschmieder, E. L., Bénard Cells and Taylor Vortices. Cambridge etc., Cambridge University Press 1993. X, 337 pp., & 35.00. ISBN 0-521-40204-2 (Cambridge Monographs on Mechanics and Applied Mathematics). ZAMM J. Appl. Math. Mech./Zeitschrift für Angewandte Mathematik und Mechanik. 1994;74(10):458–458.
22.
go back to reference Rayleigh, L, “On the Convective Currents in a Horizontal Layer of Fluid when the Higher Temperature Is on the Under Side.” Philos. Mag., 32 (192) 529–546 (1916) CrossRef Rayleigh, L, “On the Convective Currents in a Horizontal Layer of Fluid when the Higher Temperature Is on the Under Side.” Philos. Mag., 32 (192) 529–546 (1916) CrossRef
23.
go back to reference Pearson, JRA, “On Convection Cells Induced by Surface Tension.” J. Fluid Mech., 4 489–500 (1958) CrossRef Pearson, JRA, “On Convection Cells Induced by Surface Tension.” J. Fluid Mech., 4 489–500 (1958) CrossRef
24.
go back to reference Gambale, F, Gliozzi, A, “Formation of Dynamic Patterns in a Fluid Layer.” J. Phys. Chem., 76 783–790 (1972) CrossRef Gambale, F, Gliozzi, A, “Formation of Dynamic Patterns in a Fluid Layer.” J. Phys. Chem., 76 783–790 (1972) CrossRef
25.
go back to reference Weh, L, “Self-Organized Structures at the Surface of Thin Polymer Films.” Mat. Sci. Eng. C, 8–9 463–467 (1999) CrossRef Weh, L, “Self-Organized Structures at the Surface of Thin Polymer Films.” Mat. Sci. Eng. C, 8–9 463–467 (1999) CrossRef
26.
go back to reference Zhang, N, Chao, DF, “Mechanisms of Convection Instability in Thin Liquid Layers Induced by Evaporation.” Int. Commun. Heat Mass Transf., 26 1069–1080 (1999) CrossRef Zhang, N, Chao, DF, “Mechanisms of Convection Instability in Thin Liquid Layers Induced by Evaporation.” Int. Commun. Heat Mass Transf., 26 1069–1080 (1999) CrossRef
27.
go back to reference Bestehorn, M, “Convection in Thick and in Thin Fluid Layers with a Free Surface—The Influence of Evaporation.” Eur. Phys. J. Spec. Top., 146 (1) 391–405 (2007) CrossRef Bestehorn, M, “Convection in Thick and in Thin Fluid Layers with a Free Surface—The Influence of Evaporation.” Eur. Phys. J. Spec. Top., 146 (1) 391–405 (2007) CrossRef
28.
go back to reference Li, M, Xu, S, Kumacheva, E, “Convection in Polymeric Fluids Subjected to Vertical Temperature Gradients.” Macromolecules, 33 4972–4978 (2000) CrossRef Li, M, Xu, S, Kumacheva, E, “Convection in Polymeric Fluids Subjected to Vertical Temperature Gradients.” Macromolecules, 33 4972–4978 (2000) CrossRef
29.
go back to reference Shklyaev, S, Nepomnyashchy, A, Oron, A, “Marangoni Convection in a Binary Liquid Layer with Soret Effect at Small Lewis Number: Linear Stability Analysis.” Phys. Fluids, 21 (5) 054101 (2009) CrossRef Shklyaev, S, Nepomnyashchy, A, Oron, A, “Marangoni Convection in a Binary Liquid Layer with Soret Effect at Small Lewis Number: Linear Stability Analysis.” Phys. Fluids, 21 (5) 054101 (2009) CrossRef
30.
go back to reference Dutton, T, Pate, L, Hollingsworth, D, “Imaging of Surface-Tension-Driven Convection Using Liquid Crystal Thermography.” J. Heat Transf., 132 (12) 121601 (2010) CrossRef Dutton, T, Pate, L, Hollingsworth, D, “Imaging of Surface-Tension-Driven Convection Using Liquid Crystal Thermography.” J. Heat Transf., 132 (12) 121601 (2010) CrossRef
31.
go back to reference Yiantsios, SG, Serpetsi, SK, Doumenc, F, Guerrier, B, “Surface Deformation and Film Corrugation During Drying of Polymer Solutions Induced by Marangoni Phenomena.” Heat Mass Transf., 89 1083–1094 (2015) CrossRef Yiantsios, SG, Serpetsi, SK, Doumenc, F, Guerrier, B, “Surface Deformation and Film Corrugation During Drying of Polymer Solutions Induced by Marangoni Phenomena.” Heat Mass Transf., 89 1083–1094 (2015) CrossRef
32.
go back to reference Doumenca, F, Chénier, E, Trouette, B, Boeckd, T, Delcarte, C, Guerriera, B, Rossie, M, “Free Convection in Drying Binary Mixtures: Concentration Versus Thermal Instabilities.” Int. J. Heat Mass Transf., 63 336–350 (2013) CrossRef Doumenca, F, Chénier, E, Trouette, B, Boeckd, T, Delcarte, C, Guerriera, B, Rossie, M, “Free Convection in Drying Binary Mixtures: Concentration Versus Thermal Instabilities.” Int. J. Heat Mass Transf., 63 336–350 (2013) CrossRef
33.
go back to reference Davis, SH, Müller, U, Dietssche, C, "Pattern Selection in Single-Component Systems Coupling Benard Convection and Solidification." J. Fluid Mech., 144 133–151 (1984) CrossRef Davis, SH, Müller, U, Dietssche, C, "Pattern Selection in Single-Component Systems Coupling Benard Convection and Solidification." J. Fluid Mech., 144 133–151 (1984) CrossRef
34.
go back to reference Abbasian, A, Ghaffarian, R, Mohammadi, N, “Investigation of Factors Affecting Stratification Phenomenon in Epoxy-acrylic Coatings.” Iran. Polym. J., 13 (1) 61–68 (2004) Abbasian, A, Ghaffarian, R, Mohammadi, N, “Investigation of Factors Affecting Stratification Phenomenon in Epoxy-acrylic Coatings.” Iran. Polym. J., 13 (1) 61–68 (2004)
35.
go back to reference Kavehpour, P, Ovryn, B, McKinley, G, “Evaporatively-Driven Marangoni Instabilities of Volatile Liquid Films Spreading on Thermally Conductive Substrates.” Colloids Surf. A Physicochem. Eng. Asp., 206 (1–3) 409–423 (2002) CrossRef Kavehpour, P, Ovryn, B, McKinley, G, “Evaporatively-Driven Marangoni Instabilities of Volatile Liquid Films Spreading on Thermally Conductive Substrates.” Colloids Surf. A Physicochem. Eng. Asp., 206 (1–3) 409–423 (2002) CrossRef
36.
go back to reference Pauchard, L, Allain, C, “Buckling Instability Induced by Polymer Solution Drying.” Europhys. Lett., 62 (6) 897–903 (2003) CrossRef Pauchard, L, Allain, C, “Buckling Instability Induced by Polymer Solution Drying.” Europhys. Lett., 62 (6) 897–903 (2003) CrossRef
37.
go back to reference Sakurai, S, Furukawa, C, Okutsu, A, Miyoshi, A, Nomura, S, “Control of Mesh Pattern of Surface Corrugation Via Rate of Solvent Evaporation in Solution Casting of Polymer Film in the Presence of Convection.” Polymer, 43 3359–3364 (2002) CrossRef Sakurai, S, Furukawa, C, Okutsu, A, Miyoshi, A, Nomura, S, “Control of Mesh Pattern of Surface Corrugation Via Rate of Solvent Evaporation in Solution Casting of Polymer Film in the Presence of Convection.” Polymer, 43 3359–3364 (2002) CrossRef
38.
go back to reference Trouette, B, “Transient Rayleigh–Bénard–Marangoni Solutal Convection.” Phys. Fluids, 24 074108 (2012) CrossRef Trouette, B, “Transient Rayleigh–Bénard–Marangoni Solutal Convection.” Phys. Fluids, 24 074108 (2012) CrossRef
39.
go back to reference de Gennes, PG, “Instabilities During the Evaporation of a Film: Non-Glassy Polymer+ Volatile Solvent.” Eur. Phys. J. E, 6 421–424 (2001) CrossRef de Gennes, PG, “Instabilities During the Evaporation of a Film: Non-Glassy Polymer+ Volatile Solvent.” Eur. Phys. J. E, 6 421–424 (2001) CrossRef
40.
go back to reference Bassou, N, “Role of Benard–Marangoni Instabilities During Solvent Evaporation in Polymer Surface Corrugations.” Langmuir, 25 624–632 (2009) CrossRef Bassou, N, “Role of Benard–Marangoni Instabilities During Solvent Evaporation in Polymer Surface Corrugations.” Langmuir, 25 624–632 (2009) CrossRef
41.
go back to reference Bormashenko, E, "On the Mechanism of Patterning in Rapidly Evaporated Polymer Solutions: Is Temperature-Gradient-Driven Marangoni Instability Responsible for the Large-Scale Patterning." J. Colloid Interface Sci., 343 602–607 (2010) CrossRef Bormashenko, E, "On the Mechanism of Patterning in Rapidly Evaporated Polymer Solutions: Is Temperature-Gradient-Driven Marangoni Instability Responsible for the Large-Scale Patterning." J. Colloid Interface Sci., 343 602–607 (2010) CrossRef
42.
go back to reference Bormashenko, E, “Mesoscopic Patterning in Evaporated Polymer Solutions: Poly (Ethylene Glycol) and Room‐Temperature‐Vulcanized Polyorganosilanes/‐siloxanes Promote Formation of Honeycomb Structures.” Macromol. Chem. Phys, 209 567–576 (2008) CrossRef Bormashenko, E, “Mesoscopic Patterning in Evaporated Polymer Solutions: Poly (Ethylene Glycol) and Room‐Temperature‐Vulcanized Polyorganosilanes/‐siloxanes Promote Formation of Honeycomb Structures.” Macromol. Chem. Phys, 209 567–576 (2008) CrossRef
43.
go back to reference Saranjam, N, Chandra, S, Mostaghimi, J, “Orange Peel Formation due to Surface Tension-Driven Flows within Drying Paint Films.” J. Coat. Technol. Res., 13 (3) 413–426 (2016) CrossRef Saranjam, N, Chandra, S, Mostaghimi, J, “Orange Peel Formation due to Surface Tension-Driven Flows within Drying Paint Films.” J. Coat. Technol. Res., 13 (3) 413–426 (2016) CrossRef
Metadata
Title
On the stratification mechanism of self-stratifying epoxy–acrylic coatings
Authors
Ali Abbasian
S. Ekbatani
N. Bagherzadeh
Publication date
05-01-2021
Publisher
Springer US
Published in
Journal of Coatings Technology and Research / Issue 2/2021
Print ISSN: 1547-0091
Electronic ISSN: 1935-3804
DOI
https://doi.org/10.1007/s11998-020-00424-2