Effect of organic montmorillonite on the performance of modified waterborne potassium silicate zinc-rich anti-corrosion coating

Effect of organic montmorillonite on the performance of modified waterborne potassium silicate... In this work, montmorillonite (MMT), as an anti-settling agent, was added to modified waterborne potassium silicate zinc-rich coating (MWPC), aiming at improving its anti-corrosion performance. Three MMTs were elected for anti-settling agents , including MMT, organo-montmorillonites (OMMT1 and OMMT2) which are modified by HOOC(CH2)17NH3 +, and CH3(CH2)17NH3 +, respectively. The effects of type and amount of MMT on the mechanical property and appearance of MWPC were investigated by mechanical tests and scanning electron microscope. Polarization curve and electrochemical impedance spectroscopy in 3.5 % sodium chloride solution were used to evaluate the corrosion protection performances and coating porosity. Fourier transform infrared (FTIR) spectroscopy confirmed that the organic functional group was successfully reacted with emulsion, which increased the performance of MWPC. The results also showed that OMMT modified by HOOC(CH2)17NH3 + exhibited better effects than that modified by CH3(CH2)17NH3 +. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Research on Chemical Intermediates Springer Journals

Effect of organic montmorillonite on the performance of modified waterborne potassium silicate zinc-rich anti-corrosion coating

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Publisher
Springer Netherlands
Copyright
Copyright © 2015 by Springer Science+Business Media Dordrecht
Subject
Chemistry; Catalysis; Physical Chemistry; Inorganic Chemistry
ISSN
0922-6168
eISSN
1568-5675
D.O.I.
10.1007/s11164-015-2228-6
Publisher site
See Article on Publisher Site

Abstract

In this work, montmorillonite (MMT), as an anti-settling agent, was added to modified waterborne potassium silicate zinc-rich coating (MWPC), aiming at improving its anti-corrosion performance. Three MMTs were elected for anti-settling agents , including MMT, organo-montmorillonites (OMMT1 and OMMT2) which are modified by HOOC(CH2)17NH3 +, and CH3(CH2)17NH3 +, respectively. The effects of type and amount of MMT on the mechanical property and appearance of MWPC were investigated by mechanical tests and scanning electron microscope. Polarization curve and electrochemical impedance spectroscopy in 3.5 % sodium chloride solution were used to evaluate the corrosion protection performances and coating porosity. Fourier transform infrared (FTIR) spectroscopy confirmed that the organic functional group was successfully reacted with emulsion, which increased the performance of MWPC. The results also showed that OMMT modified by HOOC(CH2)17NH3 + exhibited better effects than that modified by CH3(CH2)17NH3 +.

Journal

Research on Chemical IntermediatesSpringer Journals

Published: Aug 29, 2015

References

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