通过恒电位法在三氟化硼乙醚(BFEE)溶液中以不锈钢片为基底合成了聚噻吩薄膜(PTh).采用傅里叶红外光谱(FT-IR)、扫描电镜(SEM)、热重(TGA)等测试技术对产物的结构、形貌、热稳定性进行了表征.在3.5mass％的NaCl溶液中采用塔菲尔(Tafel)极化曲线和电化学阻抗(EIS)方法对聚噻吩薄膜进行了抗腐蚀性能检测.结果表明,所制得的聚噻吩膜形貌均匀,热稳定性好,附着聚噻吩薄膜的不锈钢片(PTh/SS)抗腐蚀电位相对于裸不锈钢片(SS)正移约220mV,腐蚀电流密度下降了2个数量级,具有良好的抗腐蚀性能.
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