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·334·                             精细化工   FINE CHEMICALS                                 第 38 卷

                                                               3   结论


                                                                   采用硫酸镍超声活化制备化学镀镍导电棉织
                                                               物,可以得到如下结论:(1)棉织物镀镍活化工艺为:
                                                               m(NiSO 4 •6H 2O)∶m(NaH 2PO 2 •H 2O)∶m(H 2O)=1.5∶
                                                               2.0∶30.0,在温度 60  ℃,频率为 40 kHz,功率 320 W
                                                               的条件下超声活化 30 min。(2)棉织物镀镍优化工
                                                               艺为:NiSO 4 •6H 2 O 质量浓度 25 g/L,NaH 2 PO 2 •H 2 O
                                                               质量浓度 25 g/L,C 6 H 5 Na 3 O 7 质量浓度 5 g/L,
                                                               CH 3COONa 浓度 5 g/L,温度 90  ℃,pH 为 5,反应
                                                               时间 1 h,得到的镀镍棉织物方阻达 71.67 mΩ/□。

            a—镀镍棉织物;b—摩擦 800 次;c—摩擦 4800 次;d—摩擦 18800 次        ( 3 )镀镍 棉织物 的 方阻受 反 应温度 、 pH 、

               图 10   不同摩擦次数下镀镍棉织物表面的 SEM 图                    NiSO 4 •6H 2 O 质量浓度、NaH 2 PO 2 •H 2 O 质量浓度影
            Fig. 10    SEM images of nickel-plated cotton fabric treated   响较大。(4)棉织物镀镍后其表面耐摩擦性能、导
                    by different times of friction             电性能优越,但其拉伸断裂强力略微有所下降。

            2.6   镀镍棉织物拉伸性能分析
                                                               参考文献:
                 织物在使用过程中会受到机械力的作用,拉伸
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