含氟抗菌光固化涂层的制备及其性能  

Preparation and properties of fluorine-containing antimicrobial UV-curing coatings

作　　者：吴秫芃 崔锡文 张悦 张兵斌 吴正涛 朱雪华[1] 袁妍 WU Shupeng;CUI Xiwen;ZHANG Yue;ZHANG Bingbin;WU Zhengtao;ZHU Xuehua;YUAN Yan(Suzhou University of Science and Technology,Suzhou 215009,China)

机构地区：[1]苏州科技大学,苏州215009

出　　处：《辐射研究与辐射工艺学报》2025年第2期31-40,共10页Journal of Radiation Research and Radiation Processing

基　　金：国家自然科学基金(22202142);江苏省基础研究计划自然科学基金青年项目(BK20230653);苏州市产业前瞻与关键核心技术项目(SYC2022150);江苏省高等学校基础科学(自然科学)研究项目(22KJB530009)资助。

摘　　要：为开发高效的抗菌涂层材料,本研究将有机硅季铵盐(QAC)作为抗菌剂,含氟丙烯酸酯单体作为疏水单体改性环氧丙烯酸酯6215-100、二缩三丙二醇二丙烯酸酯(TPGDA)体系,配制基础配方。通过添加不同比例的抗菌剂和疏水单体配制了不同UV光固化配方,研究了含有不同比例添加剂的涂层表面形貌特征,固化过程的双键转化情况以及固化后的热稳定性、机械性能和抗菌性能。结果表明:涂层中的QAC含量越高,抗菌效果越好,1UV-F∶9QAC添加量为25%时涂层的抑菌圈直径可以达到4.05 mm;固化的双键转化率均高于80%;机械性能随着添加剂的增加有所下降;润湿性方面1UV-F∶9QAC涂层的水接触角最大达到91.1°。其中3UV-F∶7QAC添加剂在添加量为15%时材料的综合性能最好:对金黄色葡萄球菌具有1.3 mm的抑菌范围,同时具有高达3.06 MPa的抗拉强度和44.0%的断裂伸长率;涂料的双键转化率高于90%,热稳定性并未显著降低。To develop an efficient antibacterial coating material,the basic formulas for epoxy acrylate 6215-100 and triepropanediol diacrylate are derived using silicone quaternary ammonium salt(QAC)as an antibacterial agent and fluorine-containing acrylate as a hydrophobic monomer.Different ultraviolet(UV)-photocuring formulations are established based on different proportions of antibacterial agents and hydrophobic monomers.The surface morphology, double-bond transformation, thermal stability, mechanical properties, and antibacterialproperties of coatings containing different proportions of additives are investigated. The results showed that thehigher the QAC content in the coating, the better was the antibacterial effect. Moreover, the antibacterial-zonediameter of the coating reached 4.05 mm when 25% 1UV-F:9QAC was added. The double-bond conversion rate ofall samples exceeded 80%. The mechanical properties deteriorated with the increase in the additives. The maximumwater contact angle of the 1UV-F: 9QAC coating was 91.1° . The 3UV-F: 7QAC additive demonstrated the bestcomprehensive performance when the additive amount was 15%;it exhibited a bacteriostatic range of 1.3 mmagainst Staphylococcus aureus, a maximum tensile strength of 3.06 MPa, and an elongation at break of 44.0%. Thecoating exhibited a double-bond conversion rate exceeding 90%, and its thermal stability did not degradesignificantly.

关 键 词：UV固化 抗菌涂层 季铵盐 含氟 

分 类 号：TQ63[化学工程—精细化工] TL929[核科学技术—核燃料循环与材料]