Silane coupling agent (SCA) pretreatment and polycaprolactone (PCL) coating for enhanced corrosion resistance for magnesium
作者： Jialin Niu , Huiyin Liu , Xin Ping , Xianchao Xun , Guangyu Li
DOI: 10.1007/S11998-018-0107-Y
关键词: Materials science 、 Magnesium 、 Polycaprolactone 、 Biodegradable polymer 、 Chemical engineering 、 Polymer 、 Coating 、 Substrate (chemistry) 、 Corrosion 、 Dielectric spectroscopy 、 Colloid and Surface Chemistry 、 General chemistry 、 Surfaces, Coatings and Films 、 Surfaces and Interfaces
摘要: To address the problem of rapid corrosion magnesium (Mg) alloys, a biodegradable polymer film polycaprolactone (PCL) with KH550 as silane coupling agent (SCA) was coated on Mg substrate. The effect coating analyzed using electrochemical tests (potentiodynamic polarization curves and impedance spectroscopy) immersion (hydrogen evaluation scratch tests). showed that resistance extremely improved (by nearly two orders for icorr 1.04 V Ecorr), illustrated connection between PCL substrate enhanced well (especially in tests), thus indicating significant improvement SCA-pretreated samples. In summary, is promising to decrease degradation behavior
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