Skip to main content
Log in

Protection Properties of Organosilane-Epoxy Coating on Al Alloy 6101 in Alkaline Solution

  • Published:
Surface Engineering and Applied Electrochemistry Aims and scope Submit manuscript

Abstract

The mechanical property and the corrosion protection of organosilane-epoxy coating on Al alloy 6101 in an alkaline solution are studied. The evaluations include potentiodynamic polarization (PDP) measurements, electrochemical impedance spectroscopy (EIS) studies, effective weight loss, water contact angle, peeling off test, surface adhesion and scratch tests, etc. It is concluded that the optimal ratio of organosilane-epoxy to toluene of the dipping solution is 1 : 4.5. The peeling off strength of this coating on Al alloy is 0.144 F/N, the critical load to scratch damage of the coating surface is 20.982 g, the water contact angle becomes 106°, and the inhibition efficiency of the coated Al in an alkaline solution of NaOH with pH 11 obtained from PDP measurements, EIS and effective weight loss tests show that the protection efficiency of this coating in the base solution reaches about 99% at the optimal ratio of organosilane-epoxy to toluene, which indicates the validity of the coating on this Al alloy.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Fig. 1.
Fig. 2.
Fig. 3.
Fig. 4.
Fig. 5.
Fig. 6.
Fig. 7.

Similar content being viewed by others

REFERENCES

  1. Xiong, H., Qi, F., Zhao, N., Yuan. H., et al., Effect of organically modified sepiolite as inorganic nanofiller on the anti-corrosion resistance of epoxy coating, Mater. Lett., 2020, vol. 260, ID 126941. https://doi.org/10.1016/j.matlet.2019.126941

  2. Lazarević, Z.Ž., Mišković-Stanković, V.B., Kačarević-Popović, Z., and Dražić, D.M., Determination of the protective properties of electrodeposited organic epoxy coatings on aluminium and modified aluminium surfaces, Corros. Sci., 2005, vol. 47, no. 3, p. 823. https://doi.org/10.1016/j.corsci.2004.07.016

    Article  Google Scholar 

  3. Sharifi Golru, S., Attar, M.M., and Ramezanzadeh, B., Effects of surface treatment of aluminium alloy 1050 on the adhesion and anticorrosion properties of the epoxy coating, Appl. Surf. Sci., 2015, vol. 345, p. 360. https://doi.org/10.1016/j.apsusc.2015.03.148

    Article  Google Scholar 

  4. Guo, L., Gu, C., Feng, J., Guo, Y., et al., Hydrophobic epoxy resin coating with ionic liquid conversion pretreatment on magnesium alloy for promoting corrosion resistance, J. Mater. Sci. Technol., 2020, vol. 37, p. 9. https://doi.org/10.1016/j.jmst.2019.06.024

    Article  Google Scholar 

  5. Calabrese, L., Bonaccorsi, L., Capri, A., and Proverbio, E., Adhesion aspects of hydrophobic silane zeolite coatings for corrosion protection of aluminium substrate, Prog. Org. Coat., 2014, vol. 77, p. 1341. https://doi.org/10.1016/j.porgcoat.2014.04.025

    Article  Google Scholar 

  6. Rodič, P., Milošev, I., Lekka, M., Andreatta, F., et al., Corrosion behaviour and chemical stability of transparent hybrid sol-gel coatings deposited on aluminium in acidic and alkaline solutions, Prog. Org. Coat., 2018, vol. 124, p. 286. https://doi.org/10.1016/j.porgcoat.2018.02.025

    Article  Google Scholar 

  7. Prabhu, D. and Padmalatha, R., Corrosion behaviour of 6063 aluminium alloy in acidic and in alkaline media, Arab. J. Chem., 2017, vol. 10, p. S2234. https://doi.org/10.1016/j.arabjc.2013.07.059

    Article  Google Scholar 

  8. Van den Brand, J., Van Gils, S., Beentjes, P.C.J., Terryn, H., et al., Improving the adhesion between epoxy coatings and aluminium substrates, Prog. Org. Coat., 2004, vol. 51, no. 4, p. 339. https://doi.org/10.1016/j.porgcoat.2004.08.005

    Article  Google Scholar 

  9. Feng, Z., Song, G., Xu, Y., Zheng, D., et al., Micro-galvanic corrosion during formation of epoxy coating, Prog. Org. Coat., 2020, vol. 147, id. 105799. https://doi.org/10.1016/j.porgcoat.2020.105799

  10. Hu, Y., Yuan B., Cheng F., and Hu, X., NaOH etching and resin pre-coating treatments for stronger adhesive bonding between CFRP and aluminium alloy, Compos. Part B Eng., 2019, vol. 178, id. 107478. https://doi.org/10.1016/j.compositesb.2019.107478

  11. Rossi, S., Calovi, M., and Fedel, M., Corrosion protection of aluminum foams by cataphoretic deposition of organic coatings, Prog. Org. Coat., 2017, vol. 109, p. 144.

    Article  Google Scholar 

  12. Meis, N.N.A.H., Van der Ven, L.G.J., Van Benthem, R.A.T.M., and De With, G., Extreme wet adhesion of a novel epoxy-amine coating on aluminum alloy 2024-T3, Prog. Org. Coat., 2014, vol. 77, no. 1, p. 176. https://doi.org/10.1016/j.porgcoat.2013.09.001

    Article  Google Scholar 

  13. Penna, M.O., Silva, A.A., do Rosário, F.F., De Souza Camargo, S., et al., Organophilic nano-alumina for superhydrophobic epoxy coatings, Mater. Chem. Phys., 2020, vol. 255, id. 123543. https://doi.org/10.1016/j.matchemphys.2020.123543

  14. Anoop, V., Subramani, S., Jaisankar, S.N., Chakraborty, S., et al., Enhanced mechanical, thermal and adhesion properties of polysilsesquioxane spheres reinforced epoxy nanocomposite adhesives, J. Adhesion, 2021, vol. 97, p. 1. https://doi.org/10.1080/00218464.2019.1620107

    Article  Google Scholar 

  15. Sharma, V., Sharma, V., Goyat, M.S., Hooda, A., et al., Recent progress in nano-oxides and CNTs based corrosion resistant superhydrophobic coatings: A critical review, Prog. Org. Coat., 2020, vol. 140, ID 105512. https://doi.org/10.1016/j.porgcoat.2019.105512

  16. Jiang, M.-Y., Wu, L.,-K., Hu, J.-M. and Zhang, J.-Q., Silane-incorporated epoxy coatings on aluminum alloy (AA2024). Part 1: Improved corrosion performance, Corros. Sci., 2015, vol. 92, p. 118. https://doi.org/10.1016/j.corsci.2014.11.046

    Article  Google Scholar 

  17. Ding, R., Chen, S., Lv, J., Zhang, W., et al., Study on graphene modified organic anti-corrosion coatings: A comprehensive review, J. Alloys Compd., 2019, vol. 806, p. 611. https://doi.org/10.1016/j.jallcom.2019.07.256

    Article  Google Scholar 

  18. Kim, H. and Oh, J., Random array of inorganic nanoparticles on polymer surface for anti-biofouling property through cost-effective and high-performance dip-coating, Colloids Surf. B, 2020, vol. 188, ID 110788.

  19. Sinturel, C., Vayer, M., Mahut, F., Bonnier, F., et al., Influence of PLGA nanoparticles on the deposition of model water-soluble biocompatible polymers by dip coating, Colloids Surf. A Physicochem. Eng. Asp., 2021, vol. 608, ID 125591. https://doi.org/10.1016/j.colsurfa.2020.125591

  20. Ji, W.-G., Hu, J.-M., Liu, L., Zhang, J.Q., et al., Water uptake of epoxy coatings modified with c-APS silane monomer, Prog. Org. Coat., 2006, vol. 57, p. 439. https://doi.org/10.1016/j.porgcoat.2006.09.025

    Article  Google Scholar 

  21. Peng, Z., Wang, C., Chen, L., and Chen, S., Peeling behavior of a viscoelastic thin-film on a rigid substrate, Int. J. Solids Struct., 2014, vol. 51, nos. 25–26, p. 4596. https://doi.org/10.1016/j.ijsolstr.2014.10.011

    Article  Google Scholar 

  22. Chen, H., Feng, X., Huang, Yi., Huang, Yo., et al., Experiments and viscoelastic analysis of peel test with patterned strips for applications to transfer printing, J. Mech. Phys. Solids, 2013, vol. 61, no. 8, p. 1737. https://doi.org/10.1016/j.jmps.2013.04.001

    Article  Google Scholar 

  23. Peng, Z.L., Wang, C., Yang, Y.Z., and Chen, S., Effect of relative humidity on the peeling behavior of a thin film on a rigid substrate, Phys. Rev. E, 2016, vol. 94, no. 3, ID 032801.

  24. Pryor, M.J. and Keir, D.S., Galvanic corrosion. II. Effect of pH and dissolved oxygen concentration on the aluminum–steel couple, J. Electrochem. Soc., 1958, vol. 105, no. 11, p. 629. https://doi.org/10.1149/1.2428681

    Article  Google Scholar 

Download references

Funding

This research has been funded by the Shaanxi Province Key Research Fund, China, under the grant number 2019GY-157 and by a Wisteria Scientific Research Cooperation Special Project of Northwest University, China, which is hereby acknowledged.

Author information

Authors and Affiliations

Authors

Corresponding author

Correspondence to Maosheng Zheng.

Ethics declarations

The authors declare that they have no conflicts of interest.

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Ahsan Riaz Khan, Zheng, M., Cui, Y. et al. Protection Properties of Organosilane-Epoxy Coating on Al Alloy 6101 in Alkaline Solution. Surf. Engin. Appl.Electrochem. 58, 281–289 (2022). https://doi.org/10.3103/S1068375522030036

Download citation

  • Received:

  • Revised:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.3103/S1068375522030036

Keywords:

Navigation