Preparation of polyacrylonitrile/polyvinylidene fluoride composite fiber membrane by electrospinning and its air filtration performance

LI Jun; WU Wenjing; SUN Jinxi; QIAN Qiyi; TANG Yifei; ZHANG Mingyang

doi:10.13801/j.cnki.fhclxb.20200814.001

Volume 38 Issue 3

Mar. 2021

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LI Jun, WU Wenjing, SUN Jinxi, et al. Preparation of polyacrylonitrile/polyvinylidene fluoride composite fiber membrane by electrospinning and its air filtration performance[J]. Acta Materiae Compositae Sinica, 2021, 38(3): 741-748. doi: 10.13801/j.cnki.fhclxb.20200814.001

Citation:

LI Jun, WU Wenjing, SUN Jinxi, et al. Preparation of polyacrylonitrile/polyvinylidene fluoride composite fiber membrane by electrospinning and its air filtration performance[J]. Acta Materiae Compositae Sinica, 2021, 38(3): 741-748. doi: 10.13801/j.cnki.fhclxb.20200814.001

Citation:

LI Jun, WU Wenjing, SUN Jinxi, et al. Preparation of polyacrylonitrile/polyvinylidene fluoride composite fiber membrane by electrospinning and its air filtration performance[J]. Acta Materiae Compositae Sinica, 2021, 38(3): 741-748. doi: 10.13801/j.cnki.fhclxb.20200814.001

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Preparation of polyacrylonitrile/polyvinylidene fluoride composite fiber membrane by electrospinning and its air filtration performance

doi: 10.13801/j.cnki.fhclxb.20200814.001

LI Jun^{1
,
,},
WU Wenjing^1
,,
SUN Jinxi^2
,,
QIAN Qiyi^1
,,
TANG Yifei^1
,,
ZHANG Mingyang^1
,

1.
Department of Materials and Chemical Engineering, Henan University of Engineering, Zhengzhou 450007, China
2.
Hydrology and Water Resources Survey Bureau of Zhumadian, Henan Province, Zhumadian 463000, China

Received Date: 2020-05-28
Accepted Date: 2020-08-01

Available Online: 2020-08-14

Publish Date: 2021-03-15

Abstract

Abstract

The polyacrylonitrile/polyvinylidene fluoride (PAN/PVDF) nanocomposite fiber membranes were prepared by the coaxial electrospinning technology using PVDF as the core layer and PAN as the skin layer. Structure optimization of PAN/PVDF nanocomposite fiber membrane was carried out by adding three different nanoparticles of nano-silica powder, fumed silica and silica sol to the PAN/PVDF nanocomposite fiber membrane and changing the extrusion speed of the skin-core layer solution. Meanwhile, its pore structure parameters, surface morphology, hydrophilicity and mechanical properties were studied by BET, SEM, water contact angle, fiber strength meter and so on. The results show that the conductivity of the solution after adding silica sol to the solution reaches 32.90 μL/cm, the PAN/PVDF nanocomposite fiber membrane has the best mechanical properties, and the longitudinal breaking strength reaches 13.02 MPa. The quality factor of mask cloth containing silica sol reaches 0.0236, which is much larger than the quality factor of pure polypropylene (PP) non-woven, which is 0.0127, and the filterability is significantly increased.
- coaxial electrospinning,
- nanoparticles,
- filter performance,
- silica sol,
- fiber membrane
Long Abstrsct
Innovation Points

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References(27)

References

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