Effect of polytetrafluoroethylene content on electrochemical anticorrosion behaviors of electroless deposited Ni-P and Ni-P-polytetrafluoroethylene coatings in seawater |
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Authors: | Jianfei WangJintao Tian Xuezhong LiuYansheng Yin Xin Wang |
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Affiliation: | Institute of Materials Science and Engineering, Ocean University of China, Songling Road 238, Qingdao 266100, PR China |
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Abstract: | The Ni-P and Ni-P-polytetrafluoroethylene (PTFE) coatings with various PTFE contents were electroless deposited on carbon steel and characterized through X-ray diffraction, scanning electron microscopy, and energy dispersive X-ray spectroscopy. The microstructural morphologies of the coatings significantly varied with the PTFE content. As a result, the electrochemical anticorrosion capabilities were seriously decreased with the increase of the PTFE content. The coating with a trace PTFE (PTFE emulsion concentration of 0.2 mL/L in the plating bath) possessed excellent anticorrosion both in sterilized and unsterilized seawater which has been attributed to the absence of nano pores blocked by the incorporated trace PTFE nano particles. |
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Keywords: | Ni-P Polytetrafluoroethylene Electroless deposition Anticorrosion coatings Seawater |
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