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Original Research ARTICLE Provisionally accepted The full-text will be published soon. Notify me

Front. Chem. | doi: 10.3389/fchem.2018.00586

CoAl2O4/ kaoline hybrid pigment prepared via solid-phase method for anticorrosion application

  • 1Lanzhou Institute of Chemical Physics (CAS), China

In this study, kaoline is incorporated to prepare CoAl2O4 /kaoline hybrid pigments via traditional solid-state reaction, and the introduction of kaoline decreases the preparation temperature for formation of spinel CoAl2O4, and reduces the production cost of cobalt blue as well. More importantly, kaoline may participate in the crystallization of spinel CoAl2O4 during calcining process, and the hybrid pigments prepared using 8.1% Co3O4 and 81.5% kaoline features bright blue and good chemical resistance. Due to the synergistic effect between the sheet-like kaoline and the loaded CoAl2O4, the as-prepared CoAl2O4/kaoline hybrid pigments can be incorporated into epoxy paint system to obtain the high-performance blue anticorrosion coating, especially for acetic acid-salt fog corrosion.

Keywords: CoAl2O4, Hybrid pigments, Kaoline, Anticorrosion coating, acetic acid-salt fog

Received: 31 Jul 2018; Accepted: 09 Nov 2018.

Edited by:

Pu-Xian Gao, University of Connecticut, United States

Reviewed by:

Na Tian, China University of Geosciences, China
Adimali Piyadasa, Intel (United States), United States  

Copyright: © 2018 Zhang, Mu, Wang and Wang. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

* Correspondence: Prof. Aiqin Wang, Lanzhou Institute of Chemical Physics (CAS), Lanzhou, 730000, Gansu Province, China, aqwang@licp.cas.cn