Electroless composite coatings of Ni-P-ZrC nanoparticles on PET fabrics were obtained in acidic and alkaline baths. The surface morphology, composition and structure of the coatings as well as the thermal performance of Ni-P-ZrC coated fabrics were investigated by means of SEM, EDX, XRD and TG. The electromagnetic shielding performance and abrasion resistance were also measured. It was found that phase transition from amorphous state to crystal state occurred when Tween 80 was added to the acidic nickel plating solution and the amorphous structure was enhanced by incorporation of nano ZrC particles. The nanometer-sized crystal of Ni-P coating was formed by using alkaline nickel plating solution. The intensity of (111) diffraction peak was obviously weakened after Tween 80 being added to the alkaline bath and was enhanced again when nano ZrC particles was employed. The decomposition temperatures of electroless Ni-P and Ni-P-ZrC composite coating on PET fabrics were lower than that of PET fabric. The shielding effectiveness gradually decreased with the increasing of added nano ZrC particles. Compared with the Ni-P plated fabric, the abrasion resistance of Ni-P-Zr-coated fabric was decreased for the acidic bath but increased for the alkaline bath.%采用化学复合镀技术,实现了涤纶织物纳米碳化锆酸性、碱性复合镀Ni-P.借助扫描电镜、X射线能谱仪、X射线衍射仪和热重分析仪对镀层表面形貌、成分、结构以及织物热性能进行了研究,并测试了化学镀织物的电磁波屏蔽效能和耐磨性能.结果表明:酸性化学镀Ni-P为无定形态,加入吐温80后向结晶态转变,为典型的纳米晶结构,加入纳米碳化锆后无定形态有所增强;碱性化学镀Ni-P为纳米晶结构,加入吐温80后衍射峰强度明显减弱,加入纳米碳化锆后衍射峰强度又有所增强.涤纶织物经过酸性、碱性化学镀Ni-P和纳米碳化锆复合镀Ni-P后,热起始分解温度都有所降低.随着纳米碳化锆的质量浓度的增加,酸性和碱性复合镀Ni-P织物的电磁波屏蔽效能逐渐减小.较普通化学镀Ni-P织物,酸性纳米碳化锆复合镀Ni-P织物的耐磨性变差.而碱性纳米碳化锆复合镀Ni-P织物的耐磨性变好.
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