采用乙二胺作辅助配位剂在芳纶纤维上化学镀银,制备镀银导电Kevlar(凯夫拉)芳纶纤维.分别采用分析天平、扫描电镜(SEM)、X射线衍射(XRD)和万用表,研究了乙二胺对化学镀银层的增重率、表面形貌、晶体结构和表面电阻的影响,并探讨了化学镀银层的生长过程.结果表明,加入乙二胺后,镀液稳定性增强,纤维增重率提高到50%左右,表面电阻降低至03～0.4 Ω/cm,同时颗粒尺寸变大,抗老化性能增强.银镀层呈三维形核生长,颗粒尺寸随镀覆时间延长而增大,镀层外观也经历了由黑色到银灰色再到白色的转变过程.
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