首页|基于电泳沉积工艺的低黏附抗菌涂层的制备

基于电泳沉积工艺的低黏附抗菌涂层的制备

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以甲基丙烯酸甲酯(MMA)、丙烯酸丁酯(BA)、甲基丙烯酸二甲氨基乙酯(DMAEMA)、甲基丙烯酸羟丙酯(HPMA)和乙烯基硅油(Vi-PDMS)为单体,合成了乙烯基硅油改性聚丙烯酸酯.将其与六亚甲基二异氰酸酯三聚体(HDIT)固化剂共混,利用电泳沉积工艺,阳离子树脂带动功能性单体定向移动到阴极表面与羟基反应并沉积,经过交联固化后,进一步负载纳米银杀菌剂,获得了兼具抗细菌黏附与杀菌功能的涂层.采用FTIR、1HNMR、SEM对涂层进行了表征,采用光学接触角测量仪测试了涂层的水接触角和滑动角,对其抗细菌黏附性能及杀菌性能进行了测试.结果表明,成功合成了兼具低黏附与杀菌功能涂层.涂层表面具有优异的防油污、细菌及猪血黏附的能力,涂层对大肠杆菌和金黄色葡萄球菌的抗细菌黏附效果达到 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黏附效果.
Preparation of low adhesion antibacterial coating based on electrophoretic deposition
Vinyl silicone oil(Vi-PDMS)modified polyacrylate was prepared from methyl methacrylate(MMA),butyl acrylate(BA),dimethylaminoethyl methacrylate(DMAEMA),hydroxypropyl methacrylate(HPMA),and Vi-PDMS,and then blended with hexamethylene diisocyanate trimer(HDIT)curing agent.The mixture,after crosslinking and curing under electrophoretic deposition by which cationic resin drove the functional monomers to move selectively to the cathode surface for reaction with hydroxyl groups and deposition,nanosilver antibacterial agent was further loaded to obtain a coating with both low adhesion and bactericidal functions.The dual functional coating was then characterized and analyzed by FTIR,1HNMR,SEM,and the water contanct angle and sliding angle of the coating were tested by optical contact angle meter,followed by evaluation on its antibacterial adhesion and bactericidal performance.The results showed that the coating exhibited low adhesion and bactericidal functions with excellent oil,dirt,bacteria and pig blood adhesion resistance.The anti-bacterial adhesion rate of the coating against E.coli and S.aureus exceeded 99.9%.Even after exposure to extreme conditions such as strong acid,strong alkali,and 3000 cycles of friction,the coating surface still maintained excellent anti-liquid adhesion effect.

antibacterial propertylow adhesion coatingselectrophoretic depositionpolyacrylatevinyl silicone oilnanosilverfunctional materials

王瑶芝、于丹凤、文武、钱钦、吴旭

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广州大学 化学化工学院,广州大学精细化工研究所,广东 广州 510006

北京师范大学珠海校区 理工实验平台,广东 珠海 519087

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,山东 东营 257000

抗菌性 低黏附涂层 电泳沉积 聚丙烯酸酯 乙烯基硅油 纳米银 功能材料

国家自然科学基金项目国家自然科学基金项目广东省自然科学基金面上项目

22008043420073482023A1515010666

2024

精细化工
大连化工研究院设计院 中国化工学会精细化工专业委员会 辽宁省化工研究院

精细化工

CSTPCD北大核心
影响因子:0.557
ISSN:1003-5214
年,卷(期):2024.41(7)