采用静电纺丝技术制备聚乳酸(PLA)/锌基金属有机骨架(BioMIL-5)复合纤维膜,探讨了不同含量 BioMIL-5对复合纤维膜纤维形貌和性能的影响,并研究了复合纤维膜的吸附过滤性能和抗菌性能。结果表明:随着 BioMIL-5含量的增加,纤维平均直径先增大后减小,复合纤维膜的断裂伸长率和疏水性不断提高。与熔喷布相比,复合纤维膜可高效吸附PM2.5和PM10,BioMIL-5质量分数为4%的复合纤维膜对PM2.5和PM10的平均过滤效率分别可达99.93%、99.96%,并且对大肠杆菌和金黄色葡萄球菌具有一定的抗菌性。
Polylactic acid (PLA)/zinc-based metal-organic framework (BioMIL-5) composite fiber membranes were prepared by electrospinning technology.The effects of different contents of BioMIL-5 on fiber morphology and properties of composite fiber membranes were investigated,and the adsorption filtration and antibacterial properties of the composite fiber membranes were studied.The results showed that with the increase of BioMIL-5 content,the average fiber diameter first increased and then decreased,and the elongation at break and hydrophobicity of the composite fiber membranes increased continuously.Compared with the meltblown cloth,the composite fiber membranes could efficiently adsorb PM2.5 and PM10,and the average filtration efficiency of composite fiber membrane with BioMIL-5 mass fraction of 4% for PM2.5 and PM10 could reach 99.93% and 99.96%,respectively,and it had certain antibacterial properties against Escherichia coli and Staphylococcus aureus.
[1] Song J,Zhang B,Lu Z,et al.Hierarchical porous poly(l-lactic acid) nanofibrous membrane for ultrafine particulate aerosol filtration[J].ACS Applied Materials & Interfaces,2019,11(49):46261-46268.
[2] 高雪. 静电纺高效低阻功能化PM2.5过滤膜的结构调控及性能研究[D].广州:华南理工大学,2020.
[3] Zhang R,Liu C,Hsu P,et al.Nanofiber air filters with high-temperature stability for efficient PM2.5 removal from the pollution sources[J].Nano Letters,2016,16(6):3642-3649.
[4] 任倩. 基于水溶性聚合物PVA交联改性的纳米纤维基PM2.5过滤材料制备[D].武汉:武汉纺织大学,2018.
[5] Zhu M,Hua D,Zhong M,et al.Antibacterial and effective air filtration membranes by “Green” electrospinning and citric acid crosslinking[J].Colloid and Interface Science Communications,2018,23:52-58.
[6] Hamad K,Kaseem M,Ayyoob M,et al.Polylactic acid blends:the future of green,light and tough[J].Progress in Polymer Science,2018,85:83-127.
[7] Kalaj M,Bentz K C,Ayala S,et al.MOF-polymer hybrid materials:from simple composites to tailored architectures[J].Chemical Reviews,2020,120(16):8267-8302.
[8] Tamames-Tabar C,Imbuluzqueta E,Guillou N,et al.A Zn azelate MOF:combining antibacterial effect[J].CrystEngComm,2015,17(2):456-462.
[9] 李婷婷,张志明,韩正波.基于静电纺丝技术的聚合物基MOFs纳米纤维膜的研究进展[J].无机材料学报,2021,36(6):592-600.
[10] Dai X,Li X,Wang X L.Morphology controlled porous poly(lactic acid)/zeolitic imidazolate framework-8 fibrous membranes with superior PM2.5 capture capacity[J].Chemical Engineering Journal,2018,338:82-91.
[11] Zhang S,Ye J,Sun Y,et al.Electrospun fibrous mat based on silver(I) metal-organic frameworks-polylactic acid for bacterial killing and antibiotic-free wound dressing[J].Chemical Engineering Journal,2020,390:124523.
[12] 深圳市北岳海威化工有限公司,国家纺织制品质量监督检验中心,上海市纺织科学研究院南方测试中心,等.GB/T 20944.3—2008 纺织品抗菌性能的评价第3部分:振荡法[S].北京:中国标准出版社,2008:1-8.
[13] 中国疾病预防控制中心营养与食品安全所.GB/T 4789.2—2003食品卫生微生物学检验菌落总数测定[S].北京:中国标准出版社,2003:6-13.
[14] 丁成. 含羧酸配体的配位化合物的合成、结构与性能研究[D].哈尔滨:哈尔滨工业大学,2016.
[15] Zeraati M,Moghaddam-Manesh M,Khodamoradi S,et al.Ultrasonic assisted reverse micelle synthesis of a novel Zn-metal organic framework as an efficient candidate for antimicrobial activities[J].Journal of Molecular Structure,2022,1247:131315.
[16] 李旭. 基于高比表面炭黑的聚乳酸静电纺丝复合纤维的制备及其环境应用研究[D].南京:南京理工大学,2019.
[17] Elangovan D,Yuzay I E,Selke S E M,et al.Poly(L-lactic acid) metal organic framework composites:optical,thermal and mechanical properties[J].Polymer International,2012,61(1):30-37.
[18] Zirak Hassan Kiadeh S,Ghaee A,Farokhi M,et al.Electrospun pectin/modified copper-based metal-organic framework (MOF) nanofibers as a drug delivery system[J].International Journal of Biological Macromolecules,2021,173:351-365.
[19] Rajeshkumar G,Arvindh Seshadri S,Devnani G L,et al.Environment friendly,renewable and sustainable poly lactic acid (PLA) based natural fiber reinforced composites-a comprehensive review[J].Journal of Cleaner Production,2021,310:127483.
[20] Ghaee A,Karimi M,Lotfi-Sarvestani M,et al.Preparation of hydrophilic polycaprolactone/modified ZIF-8 nanofibers as a wound dressing using hydrophilic surface modifying macromolecules[J].Materials Science and Engineering:C,2019,103:109767.
[21] 齐晔,刘兆麟,张威.溶剂对聚乳酸纳米纤维膜孔隙结构及性能的影响[J].上海纺织科技,2018,46(7):50-53.
[22] Zhang J,Gong S,Wang C,et al.Biodegradable electrospun poly(lactic acid) nanofibers for effective PM2.5 removal[J].Macromolecular Materials and Engineering,2019,304(10):1900259.
PDF
