Corrosion resistance of novel silane-functional polybenzoxazine coating on steel

• DOI: 10.1016/j.corsci.2013.01.023
• Publication Date: 2013-01-29T16:01:27Z
• Authors: Changlu Zhou; Xin Lu; Zhong Xin; Juan Liu
• Keywords: 02 engineering and technology; 0210 nano-technology

Abstract A novel silane-functional polybenzoxazine (PB-TMOS) coating, with silane groups that can bond to the substrate, was prepared through a dip-coating and thermal curing method. The coating properties were investigated by Fourier transform infrared spectroscopy, solid-state nuclear magnetic resonance spectroscopy, static contact angle measurement, electrochemical and accelerated corrosion tests. The corrosion resistant performance of PB-TMOS coated specimens was considerably enhanced by the high hydrophobicity and water resistance resulted from the dual cross-linking network of polybenzoxazine and Si–O–Si in PB-TMOS matrix.