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Effects of zinc oxide filler on the curing and mechanical response of alkyd coatings

Sturdy, Lauren F. and Wright, Madeleine S. and Yee, Alexander and Casadio, Francesca and Faber, Katherine T. and Shull, Kenneth R. (2020) Effects of zinc oxide filler on the curing and mechanical response of alkyd coatings. Polymer, 191 . Art. No. 122222. ISSN 0032-3861. doi:10.1016/j.polymer.2020.122222.

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The mechanical properties of an alkyd resin filled with zinc oxide pigment were studied at different concentrations over a wide range of time scales using dynamic mechanical analysis, quartz crystal rheometry and nanoindentation. The motivation for this work stems from the interest in accessing the long-term properties of paint coatings by studying the mechanical properties of historic paints. In this foundational work, we compare three different modalities of mechanical measurements and systematically determine the effect of pigment filler loading on the measured properties. Quantitative agreement between the methods is obtained when the characteristic time scales of each of the methods is taken into account. While nanoindentation is the technique most readily applied to historic paint samples, the rheometric quartz crystal microbalance (rheo-QCM) is the best suited for obtaining mechanistic information from measurements of paint properties over time, provided that appropriate thin-film samples can be produced. In these studies we find that ZnO increases the rate of oxidation of the alkyd during the initial stages of cure by an amount that depends on the ZnO content.

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Faber, Katherine T.0000-0001-6585-2536
Additional Information:© 2020 Published by Elsevier. Received 5 December 2016, Revised 5 January 2020, Accepted 22 January 2020, Available online 7 February 2020. This material is based upon work supported by the National Science Foundation, USA through the Division of Materials Research (DMR-1241667), the Office of International Science and Engineering, USA (OISE-1743748) and the Graduate Research Fellowship program, USA (DGE-1324585). The Andrew W. Mellon Foundation and the Grainger Foundation are thanked for their support of scientific research at the Art Institute of Chicago. This work made use of the EPIC and SPID facilities of the NUANCE Center at Northwestern University, which has received support from the Soft and Hybrid Nanotechnology Experimental (SHyNE) Resource, USA (NSF NNCI-1542205); the MRSEC, USA program (NSF DMR-1121262) at the Materials Research Center; the International Institute for Nanotechnology (IIN); the Keck Foundation; and the State of Illinois, through the IIN. CRediT authorship contribution statement: Lauren F. Sturdy: Investigation, Formal analysis, Writing - original draft. Madeleine S. Wright: Investigation. Alexander Yee: Investigation. Francesca Casadio: Conceptualization, Writing - review & editing. Katherine T. Faber: Conceptualization, Writing - review & editing. Kenneth R. Shull: Conceptualization, Supervision, Writing - review & editing.
Funding AgencyGrant Number
NSF Graduate Research FellowshipDGE-1324585
Andrew W. Mellon FoundationUNSPECIFIED
Grainger FoundationUNSPECIFIED
International Institute for Nanotechnology (IIN)UNSPECIFIED
W. M. Keck FoundationUNSPECIFIED
State of IllinoisUNSPECIFIED
Record Number:CaltechAUTHORS:20200207-102105047
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Official Citation:Lauren F. Sturdy, Madeleine S. Wright, Alexander Yee, Francesca Casadio, Katherine T. Faber, Kenneth R. Shull, Effects of zinc oxide filler on the curing and mechanical response of alkyd coatings, Polymer, Volume 191, 2020, 122222, ISSN 0032-3861, (
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:101182
Deposited By: George Porter
Deposited On:10 Feb 2020 15:35
Last Modified:16 Nov 2021 18:00

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