摘要
为了制备高效低阻的纳米纤维空气过滤膜,采用静电纺丝技术,以钛酸钡(BaTiO3)作为驻极体,制备了不同质量分数、不同纺丝时间的PVDF/BaTiO3复合驻极纳米纤维膜,并对其微观结构、表面化学结构、透气性能、透湿性能、过滤性能进行了研究分析。结果发现:当BaTiO3的质量分数为0.8%、纺丝时间为40 min时,制备的PVDF/BaTiO3复合纳米纤维滤膜性能达到最优,此时纳米纤维滤膜的透气率最大达369 mm/s,透湿量最大达4672.79 g/(m^2·d),过滤效率为76.8%,阻力压降为11.76 Pa,品质因子最大值达0.1242。
In order to investigate the nanofiber air filtration membranes with low resistance and high efficiency,the PVDF/BaTiO3 composite nanofiber membranes with different mass fractions and different spinning times were prepared,in which the electrospinning technology was used,taking PVDF/BaTiO3 mixed solution with different mass fractions of BaTiO3 as spinning solution.Its microstructure,air permeability,moisture permeability and filtration performance were studied and analyzed.The result showed that when the mass fractions was 0.8%and spinning time was 40 min,the performance of PVDF/BaTiO3 composite nanofiber membranes was optimal.The permeability of the nanofiber film reaches the maximum of 369 mm/s;the maximum moisture permeability is 4672.79 g/(m 2·d);the filtration efficiency was 76.8%,the resistance pressure drop was 11.76 Pa,the maximum value of quality factor is 0.1242.
作者
王西贤
王冰冰
方书新
云付成
贾琳
张海霞
WANG Xixian;WANG Bingbing;FANG Shuxin;YUN Fucheng;JIA Lin;ZHANG Haixia(College of Textiles,Henan University of Engineering,Zhengzhou 450007,China)
出处
《河南工程学院学报（自然科学版）》
2020年第2期1-6,共6页
Journal of Henan University of Engineering：Natural Science Edition
基金
河南省青年人才托举工程项目(2019HYTP011)
河南省高校重点科研项目(19A540002)。
关键词
聚偏氟乙烯
钛酸钡
纳米纤维
过滤效率
阻力压降
polyvinylidene fluoride
barium titanate
nanofiber
filtration efficiency
the filter resistance pressure drop
