基于电泳沉积工艺的低粘附抗菌涂层的制备
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1.广州大学 化学化工学院;2.北京师范大学珠海校区 理工实验平台;3.中国石油化工股份有限公司胜利油田分公司石油工程技术研究院

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国家自然科学基金项目(22008043,42007348);广东省自然科学基金面上项目(2023A1515010666)


Preparation of low adhesion antibacterial coatings based on electrophoretic deposition
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1.Institute of Fine Chemical Engineering,School of Chemistry and Chemical Engineering,Guangzhou University;2.Instrumentation and Service Center for Science and Technology, Beijing Normal University, Zhuhai 519087, Guangdong;3.Instrumentation and Service Center for Science and Technology,Beijing Normal University;4.Research Institute of Petroleum Engineering and Technology,Shengli Oilfield Company,SINOPEC

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    摘要:

    低表面能涂层因其优异的防污自清洁能力而受到广泛关注,但现有涂层存在易被细菌和真菌等微生物破坏而导致防污效果下降的问题,因此构建防污抗菌涂层具有深远的意义。本文基于电泳沉积工艺,将乙烯基硅油改性聚丙烯酸酯和固化剂沉积到导电基底,进一步负载纳米银杀菌剂,经过交联固化后获得了兼具抗细菌粘附与杀菌功能的涂层。采用傅里叶变换红外光谱仪(FT-IR)、核磁共振波谱仪(NMR)和扫描电子显微镜(SEM)等对涂层的结构和形貌进行了系统的表征,结果表明,成功合成了兼具低粘附与杀菌功能涂层。涂层表面具有优异的防油污、细菌及血液粘附的能力,涂层对大肠杆菌和金黄色葡萄球菌的抗细菌粘附效果达到99.9%以上。即使经过强酸、强碱等极端环境以及摩擦3000次后,涂层表面仍具有优异的防液体粘附效果。

    Abstract:

    Low surface energy coatings have attracted wide attention due to their excellent anti-fouling and self-cleaning abilities. However, existing coatings are prone to degradation by microorganisms such as bacteria and fungi, leading to a decrease in their anti-fouling effectiveness. Therefore, the construction of anti-fouling and antibacterial coatings is of significant importance. Based on the electrophoretic deposition process, depositing vinyl silicone oil modified polyacrylate and curing agent onto conductive substrates. After further loaded with nano silver antibacterial agents, the coatings were crosslinking curing, resulting in coatings with both anti-bacterial adhesion and bactericidal functions. The morphology and structure of the coatings were systematically characterized using Fourier-transform infrared spectroscopy (FT-IR), nuclear magnetic resonance (NMR), and scanning electron microscopy (SEM). The results showed that the coating surface had excellent oil and dirt resistance, as well as the ability to resist bacteria and blood adhesion, The Anti-bacterial adhesion rate of the coating against E. coli and S.aureus exceeds 99.9%. Even after exposure to extreme conditions such as strong acid, strong alkali, and 3000 cycles of friction, the coating surface still has excellent anti-liquid adhesion effect.

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王瑶芝,于丹凤,文武,钱钦,吴旭.基于电泳沉积工艺的低粘附抗菌涂层的制备[J].精细化工,2024,41(7):

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  • 收稿日期:2023-08-09
  • 最后修改日期:2023-09-22
  • 录用日期:2023-09-19
  • 在线发布日期: 2024-07-11
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