采用化学镀方法在聚酯布表面沉积1层Ni-P合金,用扫描电子显微镜(SEM)、X射线衍射仪(XRD)、热重分析仪(TG)对镀层形貌、结构和性能进行表征.结果表明:聚酯布表面化学镀Ni-P合金由大小为0.1～1μm的微粒组成;镀层为非晶结构、热稳定性好、与聚酯布之间的结合力好;表面化学镀Ni-P合金后的聚酯布对频率＜20GHz的电磁波屏蔽效能可达到60dB,具有较好的电磁屏蔽效果.
Ni-P alloy coating was covered on surface of poly(ethylene terephthalate) (PET) fabric by electroless plating technology.Morphology,structure and property of the Ni-P plating were characterized by scanning electron microscopy (SEM),X-ray diffraction (XRD),thermogrametric analysis (TG) and infrared spectrometer (IR),respectively.The results showed that the Ni-P alloy coating on surface of PET fabric,which was composed of 0.1-1μm grains,was non-crystal and owned good stability of thermodynamics.There was good adhesion between Ni-P plating and PET fabric.Compared with those before plating,the intensity of IR of PET fabric after plating were decreased.The shielding effectiveness (SE) to frequency less than 20GHz of Ni-P -coated fabric was above 60dB.
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