具有抗菌性能的氧化石墨烯增强聚碳酸酯纳米复合薄膜

R. Mahendran, D. Sridharan, K. Santhakumar, T. Selvakumar, P. Rajasekar, Jae‐Hyung Jang
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引用次数: 20

摘要

在聚合物中掺入碳纳米填料可以产生具有改进的物理化学性质和新型复合功能的重要材料。在这项研究中,我们通过简单和低成本的方法制备了抗菌、轻质、透明和柔性的氧化石墨烯(GO)增强聚碳酸酯薄膜。采用溶液共混的方法,在不同的氧化石墨烯负载下得到均匀的pc -氧化石墨烯复合材料混合物,并采用干湿相转化技术制备薄膜。薄膜的热研究和显微照片揭示了氧化石墨烯在PC矩阵中的结合。薄膜的微观结构显示氧化石墨烯在微纳米尺度上均匀分散;然而,在较高的氧化石墨烯负载(0.7%)下,观察到明显的团聚。更重要的是,由于氧化石墨烯纳米颗粒的抗菌性质,pc -氧化石墨烯复合膜对大肠杆菌和金黄色葡萄球菌表现出优异的抗菌活性。
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Graphene Oxide Reinforced Polycarbonate Nanocomposite Films with Antibacterial Properties
The incorporation of carbonaceous nanofillers into polymers can result in significant materials with improved physicochemical properties and novel composite functionalities. In this study, we have fabricated antibacterial, lightweight, transparent, and flexible graphene oxide (GO) reinforced polycarbonate thin films by a facile and low-cost methodology. Solution blending is employed to get a homogeneous mixture of PC-GO composites at various loading of GO, and the thin films are prepared by dry-wet phase inversion technique. Thermal studies and micrographs of the films revealed the incorporation of GO in PC matrix. Microstructure of the thin films showed the homogeneous dispersion of GO at micro- and nanoscales; however, at higher loading of GO (0.7%), significant agglomeration is observed. More importantly, PC-GO composite films exhibited excellent antibacterial activities against E. coli and S. aureus, owing to the antibacterial nature of GO nanoparticles.
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