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Please use this identifier to cite or link to this item: http://http://dspace.futminna.edu.ng/jspui/handle/1/4480

Title: PASSIVE CORROSION PROTECTION OF PIPELINE STEEL BY 3-MERCAPTOPROPYLTRIMETHOXYSILANE SOL-GEL COATING
Authors: Abubakar, Mohammed
Nayef .M, Alanazi
Heming, Wang
Keywords: Sol-gel coating
3-Mercaptopropyltrimethoxysilane (MPTMS)
ATR/FTIR
XRD
LPR
PDS
EIS;
Issue Date: 21-Oct-2015
Abstract: Sol–gel derived thin films coating can provide both active and passive corrosion protection and present one of the most viable pre-treatments alternatives to the toxic chromate. Passive corrosion protection is achieved by depositing a barrier layer such as coating, to prevent the material from coming in contact with the corrosive environment. Sol-gel coatings offer a number of advantages over other methods of protection for metallic materials. 3-mercaptopropyltrimethoxysilane (MPTMS) was used as the precursor for sol-gel coating on mild steel substrate. The MPTMS sol-gel was characterized by Attenuated total reflectance/Fourier transform infrared spectroscopy (ATR/FTIR) and X-ray diffraction. The corrosion performance of the coating was assessed by linear polarisation resistance (LPR), PDS and electrochemical impedance spectroscopy (EIS) in aerated 3.5 wt.%NaCl solution at ambient temperature for 24 hrs. The protection efficiency of the coating was found to be 99.62% with a corrosion resistance of 500 times more than the bare steel
URI: http://http://dspace.futminna.edu.ng/jspui/handle/1/4480
Appears in Collections:IEC 2015

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