TITLE

Corrosion Protection of Mild Steel with Polyaniline–Thiokol Rubber Composite Coatings

AUTHOR(S)
Keqiang Dinga; Zhenbin Jiaa; Wenshi Mab; Dianlu Jianga; Qian Zhaoa; Jianglin Caoa; Ruting Tonga
PUB. DATE
January 2003
SOURCE
Protection of Metals;Jan2003, Vol. 39 Issue 1, p71
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
The anti-corrosion performance of polyaniline-thiokol rubber (PANJITR) composite coating applied to mild steel samples in artificial brine and hydrochloric acid environments is for the first time evaluated in this paper. The PANI/TR composite -coatings on mild steel were electropolymerized in a nonaqueous solution. EDS, XPS and SEM were concurrently used to characterize the structure, as well as composition of the coating and show that the structure is favorable to the corrosion protection. Both potentiodynamic polarization and electrochemical impedance spectroscopy (ETS) demonstrated that the PANT/TR coating outperforms PANT coating both in the adhesion to the substrate and its corrosion protection, making the free corrosion potential by about 100mV more positive. As a result, the mild steel corrosion was greatly impeded by applying PANT/TR composite conductive polymer coating.
ACCESSION #
15101188

 

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