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采用等离子镀膜方法在纳米ZnO颗粒表面沉积一层有机薄膜,制备出聚合物/ZnO复合材料。用高分辨透射电子显微镜(HRTEM)、傅立叶变换红外光谱(FTIR)、光致发光光谱(PL)和紫外-可见吸收光谱(UV-Vis)对其形貌、结构和性能进行表征,研究了聚合物/ZnO复合材料的光学性能以及聚合物与纳米ZnO颗粒的结合强度。结果表明,用等离子镀膜法可在纳米ZnO颗粒表面沉积一层醋酸乙烯酯(VAC)聚合物薄膜,薄膜与无机纳米ZnO颗粒以共价键形式结合,结合牢固。这层聚合物薄膜改变了纳米ZnO的表面性能,导致聚合物/ZnO复合材料的紫外-可见吸收能力增强而光致发光性能降低。
An organic thin film was deposited on the surface of nano-ZnO particles by plasma coating to prepare a polymer / ZnO composite. Their morphology, structure and properties were characterized by high resolution transmission electron microscopy (HRTEM), Fourier transform infrared spectroscopy (FTIR), photoluminescence (PL) and ultraviolet-visible absorption spectroscopy (UV- Optical properties of ZnO / ZnO composites and the bonding strength of the polymer with nano-ZnO particles. The results show that a thin film of VAC can be deposited on the surface of ZnO nanoparticles by plasma deposition. The thin films and inorganic nano - ZnO particles are covalently bonded and firmly bonded. The polymer film changed the surface properties of nano-ZnO, resulting in enhanced UV-vis absorption of the polymer / ZnO composite and decreased photoluminescence.