以DMF为溶剂,利用静电纺丝法制备了聚丙烯腈/聚乙烯吡咯烷酮/醋酸铜(PAN/PVP/Cu(OAc)2)复合纳米纤维,并借助于Design Expert软件采用Box-Behnken试验设计法及响应面法分析了不同组分的PAN/PVP/Cu(OAc)2对碳基复合纳米纤维电容的影响,用Solartron1470测其电化学性能.选取PAN、PVP及Cu(OAc)2作为影响电容的3个主要因素,并以电容作为考察对象,建立了二次多元回归模型;利用扫描电子显微镜(SEM)观测了纤维的直径和表面形貌,同时利用XRD分析了碳基复合纳米纤维的物相.结果表明,模型预测的纤维直径与真实值较为符合,说明该模型能有效地预测电容.优化后的碳基复合纳米纤维为C/Cu/CuO/Cu2O复合物,同时纤维变细,表面较粗糙且部分纤维发生断裂.
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