Effect of organic additives in fluoacid-based Ti and Zr-treatments for galvanized steel on the stability of a polymer coated interface

L. I. Fockaert; M. V.E. Ankora; J. P.B. Van Dam; S. Pletincx; A. Yilmaz; B. Boelen; T. Hauffman; Y. Garcia-Gonzalez; H. Terryn; J. M.C. Mol

doi:10.1016/j.porgcoat.2020.105738

Effect of organic additives in fluoacid-based Ti and Zr-treatments for galvanized steel on the stability of a polymer coated interface

L. I. Fockaert, M. V.E. Ankora, J. P.B. Van Dam, S. Pletincx, A. Yilmaz, B. Boelen, T. Hauffman, Y. Garcia-Gonzalez, H. Terryn, J. M.C. Mol

Research output: Contribution to journal › Article › peer-review

6 Citations (Scopus)

200 Downloads (Pure)

Abstract

The bonding properties of zirconium- and titanium-based conversion coatings were evaluated using model conversion solutions of H₂ZrF₆ and H₂TiF₆ with addition of various organic additives (PAA, PVA, PVP). Macroscopic testing techniques such as contact angle and pull-off adhesion measurements were performed on galvanized steel sheets. Complementary to this, molecular studies were performed on model zinc substrates using ATR-FTIR in the Kretschmann configuration. The macroscopic and molecular approaches showed a good correlation demonstrating ATR-FTIR in the Kretschmann configuration to be a valuable tool to gain fundamental insights in metal oxide-polymer interfacial phenomena. Zirconium-treated galvanized steel substrates were shown to have a higher bonding affinity for the polyester coil coat primer than titanium-treated galvanized steel substrates. The presence of organic additives did not further improve the bonding properties. Yet, organic additives initially improved the interfacial stability of titanium-treated substrates. However, on the long term, organic additives are shown to be detrimental for polyester coil coat adhesion. This adverse effect of organic additives on the long term was assigned to its selective dissolution during immersion and was most pronounced for titanium-treatments. The limited effect of organic additives in case of zirconium-treatments was attributed to the higher portion of chemical interfacial bonds, as well as its tendency for crosslinking reactions causing entanglement of polymeric compounds in the zirconium oxide structure.

Original language	English
Article number	105738
Number of pages	11
Journal	Progress in Organic Coatings
Volume	146
DOIs	https://doi.org/10.1016/j.porgcoat.2020.105738
Publication status	Published - Sep 2020

Bibliographical note

Funding Information:
This research was carried out under project number F81.3.13509 in the framework of the Partnership Program of the Materials innovation institute M2i (www.m2i.nl) and the Foundation for Fundamental Research on Matter (FOM), which is part of the Netherlands Organisation for Scientific Research NWO (www.nwo.nl). S.P. acknowledges financial support by Research Foundation-Flanders (FWO) under project number SB-19-151. M.V.E.A. acknowledges financial support by Materials innovation institute M2i under project number S17003 J.P.B.D. acknowledges financial support by Materials innovation institute M2i and Technology Foundation TTW (www.stw.nl), which is part of the Netherlands Organization for Scientific Research under project number S32.4.14552b. A.Y. acknowledges financial support by Materials innovation institute M2i and the Foundation for Fundamental Research on Matter (FOM) under project number F41.3.14546a. The authors would also like to acknowledge Gavin Scott from AkzoNobel for the primer formulations.

Funding Information:
This research was carried out under project number F81.3.13509 in the framework of the Partnership Program of the Materials innovation institute M2i ( www.m2i.nl ) and the Foundation for Fundamental Research on Matter (FOM) , which is part of the Netherlands Organisation for Scientific Research NWO ( www.nwo.nl ). S.P. acknowledges financial support by Research Foundation-Flanders (FWO) under project number SB-19-151. M.V.E.A. acknowledges financial support by Materials innovation institute M2i under project number S17003 J.P.B.D. acknowledges financial support by Materials innovation institute M2i and Technology Foundation TTW ( www.stw.nl ), which is part of the Netherlands Organization for Scientific Research under project number S32.4.14552b. A.Y. acknowledges financial support by Materials innovation institute M2i and the Foundation for Fundamental Research on Matter (FOM) under project number F41.3.14546a. The authors would also like to acknowledge Gavin Scott from AkzoNobel for the primer formulations.

Publisher Copyright:
© 2020 The Authors

Copyright:
Copyright 2021 Elsevier B.V., All rights reserved.

Keywords

Adhesion strength
Chemical conversion treatment
Galvanized steel
HTiF
HZrF
Interfacial stability
Polyester coil coat

Access to Document

10.1016/j.porgcoat.2020.105738

Effect of organic additivesFinal published version, 3.52 MBLicence: CC BY

Cite this

Fockaert, L. I., Ankora, M. V. E., Van Dam, J. P. B., Pletincx, S., Yilmaz, A., Boelen, B., Hauffman, T., Garcia-Gonzalez, Y., Terryn, H., & Mol, J. M. C. (2020). Effect of organic additives in fluoacid-based Ti and Zr-treatments for galvanized steel on the stability of a polymer coated interface. Progress in Organic Coatings, 146, [105738]. https://doi.org/10.1016/j.porgcoat.2020.105738

@article{595235419d9b4153842cd7d710732f98,

title = "Effect of organic additives in fluoacid-based Ti and Zr-treatments for galvanized steel on the stability of a polymer coated interface",

abstract = "The bonding properties of zirconium- and titanium-based conversion coatings were evaluated using model conversion solutions of H2ZrF6 and H2TiF6 with addition of various organic additives (PAA, PVA, PVP). Macroscopic testing techniques such as contact angle and pull-off adhesion measurements were performed on galvanized steel sheets. Complementary to this, molecular studies were performed on model zinc substrates using ATR-FTIR in the Kretschmann configuration. The macroscopic and molecular approaches showed a good correlation demonstrating ATR-FTIR in the Kretschmann configuration to be a valuable tool to gain fundamental insights in metal oxide-polymer interfacial phenomena. Zirconium-treated galvanized steel substrates were shown to have a higher bonding affinity for the polyester coil coat primer than titanium-treated galvanized steel substrates. The presence of organic additives did not further improve the bonding properties. Yet, organic additives initially improved the interfacial stability of titanium-treated substrates. However, on the long term, organic additives are shown to be detrimental for polyester coil coat adhesion. This adverse effect of organic additives on the long term was assigned to its selective dissolution during immersion and was most pronounced for titanium-treatments. The limited effect of organic additives in case of zirconium-treatments was attributed to the higher portion of chemical interfacial bonds, as well as its tendency for crosslinking reactions causing entanglement of polymeric compounds in the zirconium oxide structure.",

keywords = "Adhesion strength, Chemical conversion treatment, Galvanized steel, HTiF, HZrF, Interfacial stability, Polyester coil coat",

author = "Fockaert, {L. I.} and Ankora, {M. V.E.} and {Van Dam}, {J. P.B.} and S. Pletincx and A. Yilmaz and B. Boelen and T. Hauffman and Y. Garcia-Gonzalez and H. Terryn and Mol, {J. M.C.}",

note = "Funding Information: This research was carried out under project number F81.3.13509 in the framework of the Partnership Program of the Materials innovation institute M2i (www.m2i.nl) and the Foundation for Fundamental Research on Matter (FOM), which is part of the Netherlands Organisation for Scientific Research NWO (www.nwo.nl). S.P. acknowledges financial support by Research Foundation-Flanders (FWO) under project number SB-19-151. M.V.E.A. acknowledges financial support by Materials innovation institute M2i under project number S17003 J.P.B.D. acknowledges financial support by Materials innovation institute M2i and Technology Foundation TTW (www.stw.nl), which is part of the Netherlands Organization for Scientific Research under project number S32.4.14552b. A.Y. acknowledges financial support by Materials innovation institute M2i and the Foundation for Fundamental Research on Matter (FOM) under project number F41.3.14546a. The authors would also like to acknowledge Gavin Scott from AkzoNobel for the primer formulations. Funding Information: This research was carried out under project number F81.3.13509 in the framework of the Partnership Program of the Materials innovation institute M2i ( www.m2i.nl ) and the Foundation for Fundamental Research on Matter (FOM) , which is part of the Netherlands Organisation for Scientific Research NWO ( www.nwo.nl ). S.P. acknowledges financial support by Research Foundation-Flanders (FWO) under project number SB-19-151. M.V.E.A. acknowledges financial support by Materials innovation institute M2i under project number S17003 J.P.B.D. acknowledges financial support by Materials innovation institute M2i and Technology Foundation TTW ( www.stw.nl ), which is part of the Netherlands Organization for Scientific Research under project number S32.4.14552b. A.Y. acknowledges financial support by Materials innovation institute M2i and the Foundation for Fundamental Research on Matter (FOM) under project number F41.3.14546a. The authors would also like to acknowledge Gavin Scott from AkzoNobel for the primer formulations. Publisher Copyright: {\textcopyright} 2020 The Authors Copyright: Copyright 2021 Elsevier B.V., All rights reserved.",

year = "2020",

month = sep,

doi = "10.1016/j.porgcoat.2020.105738",

language = "English",

volume = "146",

journal = "Progress in Organic Coatings",

issn = "0300-9440",

publisher = "Elsevier",

}

Effect of organic additives in fluoacid-based Ti and Zr-treatments for galvanized steel on the stability of a polymer coated interface. / Fockaert, L. I.; Ankora, M. V.E.; Van Dam, J. P.B.; Pletincx, S.; Yilmaz, A.; Boelen, B.; Hauffman, T.; Garcia-Gonzalez, Y.; Terryn, H.; Mol, J. M.C.

In: Progress in Organic Coatings, Vol. 146, 105738, 09.2020.

Research output: Contribution to journal › Article › peer-review

TY - JOUR

T1 - Effect of organic additives in fluoacid-based Ti and Zr-treatments for galvanized steel on the stability of a polymer coated interface

AU - Fockaert, L. I.

AU - Ankora, M. V.E.

AU - Van Dam, J. P.B.

AU - Pletincx, S.

AU - Yilmaz, A.

AU - Boelen, B.

AU - Hauffman, T.

AU - Garcia-Gonzalez, Y.

AU - Terryn, H.

AU - Mol, J. M.C.

N1 - Funding Information: This research was carried out under project number F81.3.13509 in the framework of the Partnership Program of the Materials innovation institute M2i (www.m2i.nl) and the Foundation for Fundamental Research on Matter (FOM), which is part of the Netherlands Organisation for Scientific Research NWO (www.nwo.nl). S.P. acknowledges financial support by Research Foundation-Flanders (FWO) under project number SB-19-151. M.V.E.A. acknowledges financial support by Materials innovation institute M2i under project number S17003 J.P.B.D. acknowledges financial support by Materials innovation institute M2i and Technology Foundation TTW (www.stw.nl), which is part of the Netherlands Organization for Scientific Research under project number S32.4.14552b. A.Y. acknowledges financial support by Materials innovation institute M2i and the Foundation for Fundamental Research on Matter (FOM) under project number F41.3.14546a. The authors would also like to acknowledge Gavin Scott from AkzoNobel for the primer formulations. Funding Information: This research was carried out under project number F81.3.13509 in the framework of the Partnership Program of the Materials innovation institute M2i ( www.m2i.nl ) and the Foundation for Fundamental Research on Matter (FOM) , which is part of the Netherlands Organisation for Scientific Research NWO ( www.nwo.nl ). S.P. acknowledges financial support by Research Foundation-Flanders (FWO) under project number SB-19-151. M.V.E.A. acknowledges financial support by Materials innovation institute M2i under project number S17003 J.P.B.D. acknowledges financial support by Materials innovation institute M2i and Technology Foundation TTW ( www.stw.nl ), which is part of the Netherlands Organization for Scientific Research under project number S32.4.14552b. A.Y. acknowledges financial support by Materials innovation institute M2i and the Foundation for Fundamental Research on Matter (FOM) under project number F41.3.14546a. The authors would also like to acknowledge Gavin Scott from AkzoNobel for the primer formulations. Publisher Copyright: © 2020 The Authors Copyright: Copyright 2021 Elsevier B.V., All rights reserved.

PY - 2020/9

Y1 - 2020/9

N2 - The bonding properties of zirconium- and titanium-based conversion coatings were evaluated using model conversion solutions of H2ZrF6 and H2TiF6 with addition of various organic additives (PAA, PVA, PVP). Macroscopic testing techniques such as contact angle and pull-off adhesion measurements were performed on galvanized steel sheets. Complementary to this, molecular studies were performed on model zinc substrates using ATR-FTIR in the Kretschmann configuration. The macroscopic and molecular approaches showed a good correlation demonstrating ATR-FTIR in the Kretschmann configuration to be a valuable tool to gain fundamental insights in metal oxide-polymer interfacial phenomena. Zirconium-treated galvanized steel substrates were shown to have a higher bonding affinity for the polyester coil coat primer than titanium-treated galvanized steel substrates. The presence of organic additives did not further improve the bonding properties. Yet, organic additives initially improved the interfacial stability of titanium-treated substrates. However, on the long term, organic additives are shown to be detrimental for polyester coil coat adhesion. This adverse effect of organic additives on the long term was assigned to its selective dissolution during immersion and was most pronounced for titanium-treatments. The limited effect of organic additives in case of zirconium-treatments was attributed to the higher portion of chemical interfacial bonds, as well as its tendency for crosslinking reactions causing entanglement of polymeric compounds in the zirconium oxide structure.

AB - The bonding properties of zirconium- and titanium-based conversion coatings were evaluated using model conversion solutions of H2ZrF6 and H2TiF6 with addition of various organic additives (PAA, PVA, PVP). Macroscopic testing techniques such as contact angle and pull-off adhesion measurements were performed on galvanized steel sheets. Complementary to this, molecular studies were performed on model zinc substrates using ATR-FTIR in the Kretschmann configuration. The macroscopic and molecular approaches showed a good correlation demonstrating ATR-FTIR in the Kretschmann configuration to be a valuable tool to gain fundamental insights in metal oxide-polymer interfacial phenomena. Zirconium-treated galvanized steel substrates were shown to have a higher bonding affinity for the polyester coil coat primer than titanium-treated galvanized steel substrates. The presence of organic additives did not further improve the bonding properties. Yet, organic additives initially improved the interfacial stability of titanium-treated substrates. However, on the long term, organic additives are shown to be detrimental for polyester coil coat adhesion. This adverse effect of organic additives on the long term was assigned to its selective dissolution during immersion and was most pronounced for titanium-treatments. The limited effect of organic additives in case of zirconium-treatments was attributed to the higher portion of chemical interfacial bonds, as well as its tendency for crosslinking reactions causing entanglement of polymeric compounds in the zirconium oxide structure.

KW - Adhesion strength

KW - Chemical conversion treatment

KW - Galvanized steel

KW - HTiF

KW - HZrF

KW - Interfacial stability

KW - Polyester coil coat

UR - http://www.scopus.com/inward/record.url?scp=85085276071&partnerID=8YFLogxK

U2 - 10.1016/j.porgcoat.2020.105738

DO - 10.1016/j.porgcoat.2020.105738

M3 - Article

AN - SCOPUS:85085276071

VL - 146

JO - Progress in Organic Coatings

JF - Progress in Organic Coatings

SN - 0300-9440

M1 - 105738

ER -

Effect of organic additives in fluoacid-based Ti and Zr-treatments for galvanized steel on the stability of a polymer coated interface

Abstract

Bibliographical note

Keywords

Access to Document

Other files and links

Fingerprint

Cite this