PSA纳米纤维毡的制备和性能（英文）  

Preparation and performance of PSA nanofiber filtration membrane

作　　者：徐浩[1] 陈龙[1] 孙俊芬[1] 潘丹[1] 汪晓峰[2] 

机构地区：[1]东华大学材料科学与工程学院纤维材料改性国家重点实验室,上海201620 [2]上海特安纶纤维有限公司,上海201419

出　　处：《合成纤维工业》2017年第2期42-45,共4页China Synthetic Fiber Industry

基　　金：National Key Technologies R&D Program of China during the 13th Fier-Year Plan Period(2016YFB0302600)

摘　　要：以聚砜酰胺(PSA)无纺布为支撑层,采用静电纺丝法制备了PSA纳米纤维毡,并用于高温高效空气过滤领域;研究了环境湿度对PSA纤维成形的影响规律,探讨了纺丝时间、纺丝电压、接收距离对纳米纤维毡形貌、孔径、纤维直径及其力学性能的影响,以及纳米纤维毡面密度对滤材过滤效率和压阻的影响。结果表明:当环境相对湿度达到30%时,纳米纤维成形良好;当纺丝电压为22 kV,纺丝时间23 h,接收距离为16 cm时,制备的纳米纤维毡面密度为6.78 g·m^(-2),滤材过滤效率达到99.93%,过滤压阻为754 Pa,纳米纤维毡质量因子为9.63×10^(-3);PSA纳米纤维毡达到了PM2.5过滤的要求,有望在高温过滤领域得到广泛应用。A polysulfonamide（PSA） nanofiber membrane was prepared with PSA nonwoven as a support layer by electrospin- ning process and was applied in high-temperature and high-efficiency air filtration field. The effects of the environmental hu- midity, spinning time, spinning voltage and tip-collector distance on the nanofiber morphology, diameter, pore size and me- chanical properties of the nanofibers membrane were discussed. The influence of the nanofiber packing density on the filtration performance and pressure drop was studied. The results showed that the nanofiber was wen-distributed when the environmental humidity was 30% ; the nanofiber packing density was 6.78 g/m2 , and the filtration efficiency, pressure drop and quality fac- tor of nanofibem membrane were 99.93% , 754 Pa and 9.63 × 10 ^-3, respectively, when the spinning voltage was 22 kV, the tip-collector distanee 16 cm and spinning time 23 h ; and the PSA nanofibcrs membrane reached the requirement of PM2.5 fil- tration and was expected to be widely used in the high-temperature filtration field.

关 键 词：聚砜酰胺纤维 静电纺丝 纳米纤维过滤效率 过滤压阻 

分 类 号：TQ340.64[化学工程—化纤工业]