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- 2018
纳米Ag-聚乙烯醇缩丁醛静电纺丝复合纳米纤维的制备及性能
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Abstract:
采用静电纺丝技术制备纳米Ag-聚乙烯醇缩丁醛（PVB）复合纳米纤维，获得一类过滤性能和抗菌性能优异的空气过滤材料。采用TEM分析纳米Ag的形貌，采用SEM、FTIR和XRD等表征手段研究纳米Ag-PVB复合纳米纤维的微观形貌、化学结构以及结晶行为，并对其空气过滤性能、透气性能和抗菌性能进行了研究。结果表明：以乙醇为溶剂，当PVB含量为10wt%、纳米Ag含量为0.25wt%时，得到的纤维尺寸均一，平均直径为542.14 nm。性能测试结果表明，纺丝最佳时间为10 min，纳米Ag-PVB复合纳米纤维对PM2.5过滤效率为99.99%，过滤阻力为16 Pa，透气率为155.0 mm/s，并且对大肠杆菌表现出优异的抗菌性能，其抑菌率为95.52%。 The nano Ag-polyvinyl butyral (PVB) composite nanofibers were prepared by electrospinning method, which aimed to fabricate antibacterial and efficient air filtration material. The morphology of nano Ag was characterized by TEM. The microstructure, chemical structure and crystal structure of the as-prepared nano Ag-PVB composite nanofibers were confirmed by SEM, FTIR and XRD. Moreover, the filtration efficiency, air permeability and antibacterial performance of the composite nanofibers were further studied. The results indicate that the suitable component for preparing composite nanofibers is 10wt% PVB and 0.25wt% nano Ag in ethanol solvent. Under the operating condition, the nano Ag-PVB composite nanofibers exhibit uniform structure with fiber diameter of 542.14 nm. The air filtration performance test reveals that the optimized electrospinning time is 10 min. Moreover, the nano Ag-PVB composite nanofibers display excellent PM2.5 filtration efficiency of 99.99%, low pressure drop of 16 Pa and appropriate air permeability of 155.0 mm/s. Further antibacterial test demonstrates that the nano Ag-PVB composite nanofibers exhibit good antibacterial performance for E.coli, and the antibacterial rate is 95.52%. 国家自然科学基金（51273157；51773163）；湖北省自然科学基金创新群体项目（2016CF008）
| [1] | ATKINSON R W, KANG S, ANDERSON H R, et al. Epidemiological time series studies of PM2.5 and daily mortality and hospital admissions:A systematic review and meta-analysis[J]. Thorax, 2014, 69(7):660-665. |
| [2] | HOEK G, KRISHNAN R M, BEELEN R, et al. Long-term air pollution exposure and cardio-respiratory mortality:A review[J]. Environmental Health, 2013, 12(1):43. |
| [3] | ZANOBETTI A, DOMINICI F, WANG Y, et al. A national case-crossover analysis of the short-term effect of PM2.5 on hospitalizations and mortality in subjects with diabetes and neurological disorders[J]. Environmental Health, 2014, 13(1):38. |
| [4] | YU L D, WANG G F, ZHANG R J, et al. Characterization and source apportionment of PM2.5 in an urban environment in Beijing[J]. Aerosol and Air Quality Research, 2013, 13(2):574-583. |
| [5] | WANG J, HU Z M, CHEN Y Y, et al. Contamination characteristics and possible sources of PM10 and PM2.5 in different functional areas of Shanghai, China[J]. Atmospheric Environment, 2013, 68(2):221-229. |
| [6] | GOUDARZI G, SHIRMARDI M, KHODARAHMI H S, et al. Particulate matter and bacteria characteristics of the Middle East Dust (MED) storms over Ahvaz, Iran[J]. Aerobiologia, 2014, 30(4):345-356. |
| [7] | 蔡诚, 唐国翌, 宋国林, 等. 纳米SiO2驻极体复合PLA熔喷非织造材料的制备及性能研究[J]. 复合材料学报, 2017, 34(3):486-493. CAI C, TANG G Y, SONG G L, et al. Preparation and properties of nano-SiO2 electret/PLA composite meltblown nowovens[J]. Acta Materiae Compositae Sinica, 2017, 34(3):486-493(in Chinese). |
| [8] | ZHONG Z, XU Z, SHENG T. Unusual air filters with ultrahigh efficiency and antibacterial functionality enabled by ZnO nanorods[J]. ACS Applied Materials & Interfaces, 2015, 7(38):21538-21544. |
| [9] | 王春红, 贺文婷, 王瑞. 利用静电纺丝技术制备纳米黏土/聚乳酸复合纳米纤维与其表征[J]. 复合材料学报, 2015, 32(2):378-384. WANG C H, HE W T, WANG R. Preparation and characterization of nanoclay/polylactide composite nanofibers via electrospinning technique[J]. Acta Materiae Composite Sinica, 2015, 32(2):378-384(in Chinese). |
| [10] | HOMAEIGOHAR S, ELBAHRI M. Nanocomposite electrospun nanofiber membranes for environmental remediation[J]. Materials, 2014, 7(2):1017-1045. |
| [11] | 马利婵, 王娇娜, 李丽, 等. 静电纺空气过滤用PET/CTS抗菌复合纳米纤维膜的制备[J]. 高分子学报, 2015, 2(2):221-227. MA L C, WANG J N, LI L, et al. Preparation of PET/CTS antibacterial composites nanofiber membranes used for air filter by electrospinning[J]. Acta Polymerica Sinica, 2015, 2(2):221-227(in Chinese). |
| [12] | 李国东, 张毅. 聚乙烯醇缩丁醛树脂的研究与应用[J]. 中国胶粘剂, 2006, 15(6):27-32. LI G D, ZHANG Y. Study and application of polyvinyl butyral[J]. China Adhesives, 2006, 15(6):27-32(in Chinese). |
| [13] | KAO T H, SU S K, SU C I, et al. Polyacrylonitrile microscaffolds assembled from mesh structures of aligned electrospun nanofibers as high-efficiency particulate air filters[J]. Aerosol Science and Technology, 2016, 50(6):615-625. |
| [14] | WANG N, YANG Y J, AL D S, et al. Ultra-light 3D nanofibre-nets binary structured nylon 6-polyacrylonitrile membranes for efficient filtration of fine particulate matter[J]. Journal of Materials Chemistry A, 2015, 3(47):23946-23954. |
| [15] | AGHAKHANI A, KAZEMI E, KAZEMZAD M. Preparation of a novel KCC-1/nylon 6 nanocomposite via electrospinning technique[J]. Journal of Nanoparticle Research, 2015, 17(10):1-13. |
| [16] | GE J F, SI Y, FU F, et al. Amphiphobic fluorinated polyurethane composite microfibrous membranes with robust waterproof and breathable performances[J]. RSC Advance, 2013, 3(7):2248-2255. |
| [17] | STRAIN I N, WU Q, POURRAHIMI A M, et al. Electrospinning of recycled PET to generate tough mesomorphic fibre membranes for smoke filtration[J]. Journal of Materials Chemistry A, 2015, 3(4):1632-1640. |
| [18] | KIOUMOURTZOGLOU M A, SCHWARTZ J D, WEISSKOPF M G, et al. Long-term PM2.5 exposure and neurological hospital admissions in the northeastern United States[J]. Environmental Health Perspectives, 2016, 124(1):23-29. |
| [19] | LIU C, HSU P C, LEE H W. Transparent air filter for high-efficiency PM2.5 capture[J]. Nature Communications, 2015, 6:6205. |
| [20] | AHMED F E, LALIA B S, HASHAIKEH R. A review on electrospinning for membrane fabrication:Challenges and applications[J]. Desalination, 2015, 356:15-30. |
| [21] | 张东亮, 马晓敏, 李红莲, 等. 纳米ATO/PVB隔热透明原位复合材料的制备及性能[J]. 复合材料学报, 2013, 30(5):41-48. ZHANG D L, MANG X M, LI H L, et al. Preparation and properties of heat-insulated and transparent nano-ATO/PVB in-situ composites[J]. Acta Materiae Compositae Sinica, 2013, 30(5):41-48(in Chinese). |
| [22] | 丁彬, 余建勇. 静电纺丝与纳米纤维[M]. 北京:中国纺织出版社, 2011, 238-234. DING B, YU J Y. Electrospinning and nanofibes[M]. Beijing:China Textile & Apparel Press, 2011, 238-234(in Chinese). |
| [23] | LI Y P, FU H L, WANG W, et al. Characteristics of bacterial and fungal aerosols during the autumn haze days in Xi'an, China[J]. Atmospheric Environment, 2015, 122:439-447. |
| [24] | 朱美芳. 纳米复合纤维材料[M]. 北京:科学出版社, 2014, 338-341. ZHU M F. Nano composite fiber materials[M]. Beijing:Science Press, 2014, 338-341(in Chinese). |
| [25] | PRABHU S, POULOSE E K. Silver nanoparticles:Mechanism of antimicrobial action, synthesis, medical applications, and toxicity effects[J]. International Nano Letters, 2012, 2(1):32. |
| [26] | 中华人民共和国国家质量检验检疫总局. 呼吸防护用品自吸过滤式防颗粒物呼吸器:GB/T 2626-2006[S]. 北京:中国标准出版社, 2006. General Administration of Quality Supervision Inspection and Quarantine of People's Republic of China. Respiratory protective equipment-Non-powered air-purifying particle respirator:GB/T 2626-2006[S]. Beijing:Standards Press of China, 2006(in Chinese). |
| [27] | XU J, LIU C, HSU P C, et al. Roll-to-roll transfer of electrospun nanofiber film for high-efficiency transparent air filter[J]. Nano Letters, 2016, 16(2):1270-1275. |
| [28] | SHANG Y, SUN Z, CAO J, et al. Systematic review of Chinese studies of short-term exposure to air pollution and daily mortality[J]. Environment International, 2013, 54(4):100-111. |
