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Corrosion protective properties of cellulose nanocrystals reinforced waterborne acrylate-based composite coating
KTH Royal Institute of Technology, Sweden.
University of Alberta, Canada.
KTH Royal Institute of Technology, Sweden.
RISE - Research Institutes of Sweden, Bioscience and Materials, Surface, Process and Formulation.ORCID iD: 0000-0001-8775-0602
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2019 (English)In: Corrosion Science, ISSN 0010-938X, E-ISSN 1879-0496, Vol. 155, p. 186-194Article in journal (Refereed) Published
Abstract [en]

The present investigation highlights corrosion protection of carbon steel by a waterborne acrylate-based matrix coating, with and without reinforcement by cellulose nanocrystals, by using electrochemical impedance spectroscopy in 0.1 M NaCl solution over a period of 35 days. Interactions between cellulose nanocrystals and the matrix coating were demonstrated by Fourier transform infrared spectroscopy. The results show that both coatings have high barrier performance but different protective characteristics during long-term exposure. The differences can be attributed to the reinforcement effect of cellulose nanocrystals caused by hydrogen bonding interactions between cellulose nanocrystals and the matrix coating.

Place, publisher, year, edition, pages
Elsevier Ltd , 2019. Vol. 155, p. 186-194
Keywords [en]
A. Cellulose nanocrystals, A. Waterborne organic coatings, B. Electrochemical impedance spectroscopy, B. IR spectroscopy, C. Corrosion protection performance, C. Interfaces, Cellulose, Cellulose derivatives, Composite coatings, Electrochemical corrosion, Electrochemical impedance spectroscopy, Fourier transform infrared spectroscopy, Hydrogen bonds, Nanocrystals, Organic coatings, Reinforcement, Sodium chloride, Steel corrosion, Barrier performance, Cellulose nano-crystals, Corrosion protection performance, Hydrogen bonding interactions, Long term exposure, Protective characteristic, Protective properties, Reinforcement effects, Corrosion resistant coatings
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Natural Sciences
Identifiers
URN: urn:nbn:se:ri:diva-38889DOI: 10.1016/j.corsci.2019.04.038Scopus ID: 2-s2.0-85065617813OAI: oai:DiVA.org:ri-38889DiVA, id: diva2:1319878
Note

Export Date: 28 May 2019; Article; CODEN: CRRSA; Correspondence Address: He, Y.; KTH Royal Institute of Technology, School of Engineering Sciences in Chemistry, Biotechnology and Health, Department of Chemistry, Division of Surface and Corrosion Science, Drottning Kristinas väg 51, Sweden; email: yunjuan@kth.se; Funding details: China Scholarship Council; Funding text 1: Yunjuan He acknowledges the financial support of China Scholarship Council (CSC) for PhD study at KTH; PTE coatings AB Gamleby (Västervik, Sweden) is acknowledged for providing polymer coatings. Dr. Cem Örnek at the division of surface and corrosion science, KTH is thanked for helping preparing cross-section specimen for Optical microscopy measurement. This research did not receive any specific grant from funding agencies in the public, commercial, or not-for-profit sectors. Appendix A

Available from: 2019-06-03 Created: 2019-06-03 Last updated: 2019-06-13Bibliographically approved

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Ahniyaz, Anwar

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