F-POSS透明疏水抗菌涂层的制备及其性能

Preparation and properties of F-POSS transparenthydrophobic antimicrobial surfaces

以物理气相沉积的方式,将聚合的笼型半硅氧烷材料(F-POSS)和抗菌剂吡啶硫酮锌沉积到玻璃表面,利用FT-IR、SEM、UV-Vis对其组成、形貌、光学性能进行表征,并通过对大肠杆菌和金黄色葡萄球菌进行细菌计数分析,对样品的抗菌能力进行了评估。结果表明,所制备的涂层表面平整具有基体玻璃90%的透明度与118°的水接触角。涂层拥有优良的耐磨、冲击能力,具有一定自修复能力,并且对酸碱、高温等苛刻条件表现出了极佳的稳定性。同时,对常见的大肠杆菌和金黄色葡萄球菌都能在24 h内达到超过98%的杀菌能力。

In this paper,fluorinated polyhedral oligomeric silsesquioxanes(F-POSS)and the antimicrobial agent zinc pyrithione were deposited onto the surface of glasses by physical vapour deposition.FT-IR,SEM,and UV-Vis were used to analyze the composition,morphology,optical properties,and the antimicrobial capacity of the samples.And the antibacterial ability of the samples was evaluated through bacterial count analysis of Escherichia coli and Staphylococcus aureus.The results show that the prepared coating has a homogeneous surface with 90%transparency and 118°water contact angle.It has excellent abrasion and impact resistance,some self-repairing ability,and shows excellent stability to acid,alkali,high temperature and other harsh conditions.Meanwhile,it can achieve more than 98%bactericidal ability against both common E.coli and Staphylococcus aureus within 24 hours.