| 학회 |
한국고분자학회 |
| 학술대회 |
2021년 가을 (10/20 ~ 10/22, 경주컨벤션센터) |
| 권호 |
46권 2호 |
| 발표분야 |
고분자 가공/복합재료 |
| 제목 |
TitleFerroelectric PVDF Nanofiber Membrane for High Efficiency PM0.3 Air Filtration with Low Air Flow Resistance |
| 초록 |
The significant public health concerns related to air pollution that contains particulate matter (PM) and the airborne transmission of severe acute respiratory syndrome coronavirus 2 raised considerable interest in high performance air filtration membranes. The highly ferroelectric polyvinylidene fluoride (PVDF) nanofiber filter membrane is successfully fabricated via the electrospinning process for high-performance low-cost air filtration. Spectroscopic and ferroelectric/piezoelectric analyses of PVDF NF show that a thinner PVDF NF typically forms a ferroelectric β phase with a confinement effect. A 70-nm PVDF NF membrane exhibits the highest fraction of β phase and the largest polarization behavior from piezoresponse force microscopy. An ultra-thin 70-nm PVDF NF membrane exhibits a high PM0.3 filtration efficiency of 97.4% with a low pressure drop of 5.2 mmH2O at an air flow of 5.3 cm/s owing to the synergetic combination of the slip effect and ferroelectric dipole interaction. |
| 저자 |
Tan Tan Bui1, Min Kyoung Shin2, Seung Yong Jee3, Jongin Hong2, Myung Gil Kim4
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| 소속 |
1SungkyunKwan Univ., 2Chung Ang Univ., 3Lemon Corp., 4Sungkyunkwan Univ. |
| 키워드 |
ferroelectric PVDF nanofiber; electrospun nanofiber; air filtration; filter membrane; electrospinning
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| E-Mail |
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