刘海弟, 张婧坤, 薛 杨, 王笑泽, 陈运法
(中国科学院过程工程研究所多相复杂系统国家重点实验室, 北京100190)
DOI:10.13732/j.issn.1008-5548.2022.06.001
收稿日期: 2022-04-06, 修回日期:2022-07-01,在线出版时间:2022-11-01。
基金项目:国家重点研发计划项目,编号:2016YFC0207100;中国科学院重点部署项目,编号: ZDRW-ZS-2017-6-2。
第一作者简介:刘海弟(1976—),男,研究员,博士,硕士生导师,研究方向为环境净化功能材料。 E-mail:liuhaidi@ipe.ac.cn。
摘要:通过向酸洗海泡石载体中负载离子液体(十四烷基-3-甲基咪唑溴盐)制备高热稳定性的复合抗菌材料,利用X射线衍射(XRD)、热重分析方法(TG)和扫描电子显微镜(SEM)分析离子液体在海泡石中的分散状态,研究所制备的复合抗菌材料的热稳定性并考察材料对于革兰氏阴性大肠杆菌和革兰氏阳性芽孢杆菌的抗菌效果。结果表明:离子液体在海泡石微孔中高度分散,并表现出较好的耐热性能,有望用于耐热涂层中以获得抗菌效果。
关键词:海泡石;抗菌材料;离子液体;热稳定性
Abstract:Composite antibacterial material was prepared by doping acid-treated sepiolite with ionic liquid(tetradecyl-3-methylimidazole bromide). X-ray diffraction(XRD), thermogravimetric analysis(TG) and scanning electron microscope(SEM) methods were employed to analyze the dispersion state of ionic liquid in sepiolite. The antibacterial abilities of the as-prepared materials were investigated with E.coli(gram-negative) and B. paramycoides(gram-positive) used as target strain. The results show that ionic liquid finely disperses in the micro-pore of sepiolite and exhibites good thermal stability which makes it a promising material to be used in heat-resisting coating to give rise to antibacterial ability.
Keywords:sepiolite; antibacterial material; ionic liquid; thermal stability
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