Abstract
ABSTRACTIn this study, polyethylene terephthalate (PET) nanofiber membrane fabricated by electrospinning was newly applied to needle‐felt filters. The PET nanofiber membrane was electrospun in an optimal condition. Nanoparticles (SiO2) were used to reduce the fiber diameter. Polyphenylene sulfide needle felt (PPS NF), hot melt adhesive film, and PET nanofiber membrane were compounded into sandwich‐structured composite needle felt (PET/SiO2 NNF) by heat treatment. The dynamic filtration performance of PET/SiO2 NNF was compared with that of PPS NF and polytetrafluoroethylene‐coated needle felt (PTFE CNF). The results showed that PET/SiO2 NNF had a lower rate of increase of pressure drop and a higher dust removal rate. The completion cycle of PET/SiO2 NNF was longer than PPS NF and PTFE CNF, which extended its service life in real applications. The successful synthesis of PET/SiO2 NNF suggested a new method to synthesize an innovative high‐performance needle‐felt filter. © 2019 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2020, 137, 48282.
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