Bio-based episulfide composed of cardanol/cardol for anti-corrosion coating applications
作者：Jie Lv, Zhuoyu Liu, Jie Zhang, Jizhen Huo, Yingfeng Yu*
關鍵字：Cardanol, Cardol Epoxy resin, Episulfide resin, Corrosion resistance
論文來源：期刊
具體來源：Polymer 2017, 121, 286-296
發表時間：2017年
Bio-based materials from Cardanol/cardol with episulfide group (CCES) and epoxy group (CCEO) were synthesized and further blended with commercial bisphenol-A diglycidyl ether type epoxy resin(DGEBA) for anti-corrosion coating application. The curing behavior of CCEO and CCES confirmed that episulfide exhibited a faster curing rate and higher curing conversion than epoxide. Anticorrosion properties of composite system CCEO/CCES and DGEBA were also carried out. Equilibrium water content of CCES-DGEBA blend was much lower than neat DGEBA and CCEO-DGEBA composite system in water absorption test, which met agreement with that CCES-DGEBA blend system revealed better adhesive to the metal compared with DGEBA and CCEO-DGEBA blend in lap sheer strength assessment. Further, CCES-DGEBA blend with 20 wt% of CCES exhibited optimized performance in corrosion resistance as it possessed the higher impedance modulus at low frequencies in EIS bode plots, lowest corrosion current and the highest corrosion voltage in Tafel test.