Polypyrrole Functionalized Graphene Oxide Accelerated Zinc Phosphate Coating Under Low-Temperature
Qingsong Zhu, Jingguang Liu, Xin Wang, Yuxiang Huang, Ying Ren, Weiqiang Song, Chenzhong Mu, Xianhu Liu, Fengchun Wei and Chuntai Liu
1 The Key Laboratory of Material Processing and Mold of Ministry of Education, National Engineering Research Center for Advanced Polymer Processing Technology, Zhengzhou University, Zhengzhou, 450002, China
2 College of Materials Science and Engineering, Henan University of Technology, Zhengzhou, 450001, China
3 Jier Machine-Tool Group Co., LTD, Jinan, 250000, China
4 Institute of Polymer Materials, Friedrich-Alexander University Erlangen-Nuremberg, Martensstr. 7, Erlangen, 91058, Germany
5 State Key Laboratory of Special Functional Waterproof Materials, Beijing Oriental Yuhong Waterproof Technology Co., Ltd, Beijing, 100123, China
Abstract
Zinc phosphate coating, as an effective and fast anticorrosion technique for the metals, have been developed rapidly in recent years. However, it is still challenge to synthesize a low energy, environmentally friendly and efficient accelerator through a simple, facile method. Herein, as a new accelerator, polypyrrole functionalized graphene oxide (GO-PPy) nanocomposites were prepared by in-situ process to grow polypyrrole (PPy) film on graphene oxide (GO) surface, Incorporation of GO-PPy into phosphate baths accelerated the phosphating process of phosphate coating and promoted the nucleation and growth of phosphate crystals, achieving stronger corrosion resistance, which were confirmed by electrochemical measures and morphologies characteristic of the phosphate coating. Additionally, when the concentration of GO-PPy in the phosphate baths reached up 1.2 g/L, the phosphate coating possessed the most compact and uniform phosphate crystals and the best corrosion protection performance. Finally, the special mechanism of the phosphate process was discussed. This work introduces a new, low-energy, facile, environmentally friendly and alternative accelerator for the preparation of phosphate coatings.
Publication details
Received: 08 Jul 2020
Revised: 03 Sep 2020
Accepted: 03 Sep 2020
Published online: 05 Sep 2020
Article type:
Research Paper
DOI:
10.30919/esmm5f927
Volume:
9
Page:
48-54
Citation:
ES Materials & Manufacturing, 2020, 9, 48-54
Permissions:
Copyright
Number of downloads:
4858
Citation Information:
15
Description:
This paper introduces an environmentally friendly and fast accelerator for phosphate coating via pol....
This paper introduces an environmentally friendly and fast accelerator for phosphate coating via polypyrrole functionalized graphene oxide.
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