分别用十二烷基苯磺酸钠(SDBS)、十二烷基硫酸钠(SDS)和双-(γ-三乙氧基硅基丙基)四硫化物(Si69)对CaCu3Ti4O12 (CCTO)进行处理,采用溶液法制备处理后的CCTO/聚偏氟乙烯(PVDF)复合材料.采用XRD和SEM对复合材料的物相及微观结构进行分析,研究复合材料的介电性能与CCTO表面处理的关系.结果表明:经过表面处理的CCTO添加到PVDF中,提高了PVDF的介电常数,尤其是采用Si69处理的CCTO/PVDF复合材料,在1000Hz下介电常数达到了85,是不经过改性的CCTO/PVDF复合材料的5倍.
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