电网设备中载银纳米材料的抗菌性能研究

研究电网设备的载银纳米材料抗菌性能。给出原子团簇形成过程,制备研究的载银纳米材料。采用透射电子显微镜观察纳米粒子微观结构,显示纳米粒子外形。通过微量注射泵获取去离子水,令水滴和纳米薄膜接触,利用接触角测量仪测量二者间的接触角。测试纳米材料亲水/疏水性;并对纳米薄膜进行力学性能测试。通过计算抑菌圈大小对纳米材料抗菌性进行测试。对不同光照条件和不同沉积时间下的纳米材料抗菌性能进行测试,研究沉积量、沉积形态对载银纳米材料抗菌性能的影响,获取一组最优性能的工艺参数。进行细胞膜完整性实验,通过温度对纳米颗粒的速度分布进行有效控制,提高抗菌镀层的耐磨性能。结果表明,制备纳米材料疏水性和力学性能均较高;在沉积时间为30 min、Ag沉积量为7%、沉积形态为柱状时,纳米材料的抗菌性能最佳;通过细胞膜完整性实验可知,优化后的纳米材料能够提高细胞死亡率,有效实现杀菌。

Study on antibacterial properties of silver loaded nanomaterials in power grid equipment

The antibacterial properties of nanomaterials of power grid equipment are studied. The formation process of atomic cluster is given to prepare silver loaded nanomaterials. The microstructure of the nanoparticles was observed by transmission electron microscopy, and the shape of the nanoparticles was displayed. The deionized water was obtained by microinjection pump, and the droplet and nano film were contacted. The contact angle between the two contacts was measured by contact angle measuring instrument, the hydrophilic / hydrophobic properties of nano materials were tested, and the mechanical properties of nano film were tested. The antibacterial properties of nanomaterials were tested by calculating the size of bacteriostasis. The antibacterial properties of nanomaterials under different illumination conditions and different deposition time were tested. The effects of deposition volume and deposition morphology on antibacterial properties of silver loaded nanomaterials were studied, and a set of process parameters for optimal performance was obtained. The membrane integrity experiment was carried out to effectively control the velocity distribution of the nanoparticles through the temperature, so as to improve the wear resistance of the antibacterial coating. The results show that the preparation and mechanical properties of nano materials were higher in hydrophobic; the sedimentation time is 30min, the deposition amount of Ag was 7%, the deposition pattern is columnar, nano materials, the best antibacterial activity; through the cell membrane integrity experiment, nano materials after optimization can improve the cell death rate, effective sterilization.