多针静电纺丝高效制备防雾霾空调滤网的工艺研究Study on the High-Efficiency Fabrication of Anti-Haze Air Conditioning Filter Based on Multi-Needle Electrospinning
朱自明,许国杰,陈柔羲,冯亮,曾俊,秦黎明
ZHU Zi-ming,XU Guo-jie,CHEN Rou-xi,FENG Liang,ZENG Jun,QIN Li-ming
摘要(Abstract)：
基于多针梯形单元阵列静电纺丝喷头和射流喷射稳定生产纳米纤维膜工艺,首先分析了纳米纤维滤膜的过滤基础原理,随后设计了一款用于高效制备纳米纤维滤膜的多针静电纺丝设备,并基于所设计的设备,研究了不同生产速率、不同基材的空气过滤膜性能变化规律。结果表明:用聚乙烯吡咯烷酮(PVP)改性的质量分数为18%的聚偏氟乙烯(PVDF)溶液即使在30%的相对湿度下纺丝,沉积纤维也无串珠结构,纤维均匀性较好;添加了硝酸银的PVDF纤维膜的抗菌性能良好,适合空调滤膜的抗菌杀菌需求;降低湿度、升高电压、增加涤纶网材料目数,以及降低生产速率都能使过滤效率升高。
Based on multi-needle trapezoidal unit array electrostatic spinning nozzle and the technology of the stable procession of produce nano-fiber membrane by jetting, firstly, the basic principle of nanofiltration membrane was analyzed, and then a multi-needle electrostatic spinning device was designed for the efficient preparation of nanofiber filter membrane. Finally, based on the designed device, the performance changes of air filter membrane with different production rates and different substrates were studied. The results showed that the PVP modified 18%PVDF solution spun at 30% humidity, the deposited fiber had no bead-like structure, and the fiber had good uniformity. The PVDF fiber membrane with silver nitrate added had good antibacterial properties, which was suitable for the antibacterial and bactericidal requirements of the air conditioning filter membrane. The filtration efficiency could be increased by reducing humidity, increasing voltage, increasing mesh size of polyester mesh and decreasing production rate.
关键词(KeyWords)：
多针静电纺丝;纳米纤维;空调滤网;防雾霾
multi-needle electrostatic spinning;nanofiber;air conditioning filter;anti-haze
基金项目(Foundation): 佛山市科技创新项目(2020001004407)
作者(Author):
朱自明,许国杰,陈柔羲,冯亮,曾俊,秦黎明
ZHU Zi-ming,XU Guo-jie,CHEN Rou-xi,FENG Liang,ZENG Jun,QIN Li-ming
DOI: 10.16090/j.cnki.hcxw.2020.12.008
参考文献(References)：
- [1]DAVIES C N.The clogging of fibrous aerosol filters[J].Journal of Aerosol Science,1970,1(1):35-39.
- [2]BROWN R C.Theory of airflow through filters modelled as arrays of parallel fibres[J].Chemical Engineering Science,1993,48(20):3535-3543.
- [3]ROSNER D E,TANDON P,KONSTANDO-POULOS A G.Local size distributions of particles deposited by inertial impaction on a cylindrical target in dust-laden streams[J].Journal of Aerosol Science,1995,26(8):1257-1279.
- [4]罗国华,梁云,郑炽嵩,等.纤维材料过滤理论的研究进展[J].过滤与分离,2006,16(4):20-24.
- [5]张伟力,刘瑞霞.浅谈丙纶熔喷非织造布在过滤领域的应用[J].产业用纺织品,2000(3):26-28.
- [6]魏取福.非织造滤布过滤性能研究[J].纺织学报,2001,22(4):259-260.
- [7]赵鸿雁,崔世忠.聚丙烯熔喷非织造布及其过滤性能[J].中原工学院学报,2001,12(4):29-31.
- [8]刘亚.熔喷/静电纺复合法聚乳酸非织造布的制备及过滤性能研究[D].天津:天津大学,2009.