摘要
为了研究纳米ZnO微粒对化学镀镍织物电磁波屏蔽和耐磨性能的影响,采用化学复合镀技术制备了Ni-P-ZnO复合镀层。利用SEM、EDX、XRD和TG分析手段对化学镀层的组织特征、相结构转变、热稳定性进行了分析,结果表明:涤纶织物经过纳米ZnO微粒复合镀Ni-P之后,热起始分解温度有所下降;化学镀镍液中添加纳米ZnO微粒后,Ni-P镀层结构没有发生改变;当增重率和镀层成分相同时,镀层致密性对电磁波屏蔽性能影响显著;纳米ZnO微粒的加入使镀速加快,镀层孔隙率增大,致密性变差,Ni-P镀层与纤维基体的结合牢度受到影响,从而使纳米ZnO微粒复合镀Ni-P织物的耐磨性变差。
Electroless Zi-P/nano-ZnO composite coating was prepared on polyethylene terephthalate(PET).The effect of nano-ZnO on the electromagnetic shielding performance and wear resistance of electroless Ni-P coating was investigated.Thus the microstructure,crystallization behavior,and thermal stability of electroless Ni-P/nano-ZnO composite coating were analyzed by means of scanning electron microscopy(SEM),energy dispersive spectrometry(EDS),X-ray diffraction(XRD),and thermogravimetric(TG)analysis.Results indicated that electroless Ni-P/nano-ZnO coating on PET fabric had a lower decomposition temperature than the PET fabric.The structure of electroless Ni-P coating kept almost unchanged after nano-ZnO and/or nano-Fe3O4 particles were incorporated.The shielding effectiveness(SE)of the composite coating was greatly dependent on the compactness.The introduction of nano-ZnO contributed to increasing plating rate and coating porosity,and decreasing the compactness of the coating and its adhesion to the substrate,hence leading to decrease in the wear resistance.
出处
《材料保护》
CAS
CSCD
北大核心
2008年第9期61-63,74,共4页
Materials Protection
基金
陕西省教育厅专项自然科学资助项目(06KJ299)
西安工程大学研究生创新基金资助(chx070505)