静电纺丝法制备抑菌性聚酰亚胺纳米纤维

发布时间：2018-02-16 13:08

本文关键词： 静电纺丝聚酰亚胺纳米纤维抑菌性　出处：《高等学校化学学报》2016年04期 　论文类型：期刊论文

【摘要】：采用静电纺丝技术,以联苯四甲酸二酐(BPDA)和4,4'-二氨基二苯醚(ODA)为单体,硝酸银为银源,通过两步法制备含银聚酰亚胺(PI/Ag)纳米纤维.通过X射线衍射(XRD)、透射电子显微镜(TEM)及扫描电子显微镜(SEM)表征了PI/Ag纳米纤维的结构和微观形貌;通过浸渍培养法研究了聚酰亚胺(PI)及PI/Ag纳米纤维的抑菌性能.结果表明,聚酰亚胺基体中存在单质银的立方晶体结构,银粒子在聚酰亚胺基体表面均匀分散,平均粒径为10 nm;PI/Ag纳米纤维对大肠杆菌(E.coli)、金黄色葡萄球菌(S.aureus)和枯草芽孢杆菌(B.subtilis)表现出良好的抑菌效果,最大抑菌率可达99.1%,为聚酰亚胺在耐高温抑菌生物医用材料等领域的应用提供了新的方向.
[Abstract]:Using electrospinning technology, BPDAs and ODAs were used as monomers, silver nitrate was used as silver source. The structure and microstructure of PI/Ag nanofibers were characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM) and scanning electron microscopy (SEM). The bacteriostatic properties of polyimide (Pi) and PI/Ag nanofibers were studied by impregnation culture. The results showed that there was cubic crystal structure of silver in polyimide matrix and silver particles were dispersed uniformly on the surface of polyimide matrix. The average particle size of 10 nm Pi / Ag nanofibers showed a good bacteriostatic effect on E. coli, S. aureus and B. subtilis. The maximum bacteriostatic rate can reach 99.1, which provides a new direction for the application of polyimide in the field of heat-resistant bacteriostatic biomedical materials.
【作者单位】：常州大学材料科学与工程学院;南京航空航天大学机电学院;江苏华威世纪电子集团有限公司;
【基金】：国家自然科学青年基金(批准号:51203015) 江苏省产学研前瞻项目(批准号:BY2014037-05;BY2015027-10;BY2015027-22) 江苏省2014年度普通高校研究生科研创新计划项目(省助)(批准号:KYZZ-0304)资助~~
【分类号】：TQ340.64

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