研究了聚乙二醇改性对聚对苯二甲酸乙二醇酯(PET)薄膜化学镀铜的影响.主要工序为:依次用1#、3#、5#金相砂纸打磨PET薄膜,在紫外光下用聚乙二醇改性接枝,以及化学镀铜.镀液的组成与工艺条件为:CuSO4·5H2O 16 g/L,Na2EDTA14 g/L,NaKC4H4O6·2H2O 19.5 g/L,NaOH 14.5 g/L,HCHO15 mL/L,温度40℃,时间30 min.红外光谱图表明PEG-6000被成功接枝在PET薄膜表面.分别采用X射线衍射仪、扫描电镜分析了化学镀铜后PET薄膜的结构和表面形貌,并测试了PET薄膜的结合力、厚度、导电性等性能.结果表明,PET表面的化学镀铜层纯度高;与未改性PET基铜镀层相比,改性的PET基铜镀层结晶更细致、光亮；镀铜层的厚度、电导率、背光等级及其与PET薄膜之间的结合力分别为1.21 μm、1.9×105 S/cm、10级、16.1 N/cm,可用以生产挠性电路板(FCB).
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