Preparation of low resistance fluffy ultrafine filter media by centrifugal electrospinning

Zeng，Jun1,2; Wang，Han1; Chen，Rouxi2,3; Wu，Peixuan1; Chen，Xindu1; Chen，Xin1; Qin，Liming2; Lan，Xingzi4; Zhang，Rong Guang1; Lin，Zhenpei1; Xu，Guojie1,2

2021-09-01

10.1063/5.0051922

AIP Advances   影响因子和分区

2158-3226

Fluffy poly(vinyl alcohol) fiber filter material was prepared by the centrifugal electrospinning process combined with the opening process, which is used in the field of air filtration. We used a conductive ring to connect the positive high voltage with the centrifugal spinning rotation cup in order to improve the electrostatic loading stability of the centrifugal electrospinning process and make the electric field more concentrated. It can reduce the high voltage attenuation and reduce the voltage deviation from 1.47-1.86 kV to 0.02-0.04 KV. The effects of the loading voltage (0-20 kV) and rotational speed (4000-8000 rpm) of the positive high voltage loading mode on the fiber diameter were investigated. The results show that the voltage loading was beneficial to the formation of fibers with good morphology, especially under the condition of low rotational speed. Moreover, the improvement effect of voltage was more obvious, which can curb the problems caused by insufficient solvent volatilization, such as too thick fiber diameter, fiber dissolution bonding, spot bonding, and so on. In addition, the increase in rotational speed was also beneficial to the refinement of the fiber. We loosened the filter material processed by the centrifugal electrospinning process and explored the effect of the opening process on fibers of different morphologies in order to further promote the application of the centrifugal electrospinning filter material and improve the fluffy degree of the filter material. The results showed that the fiber with good spinning and fewer shift defects has a better opening effect and fluffy degree. Finally, the filtration efficiency of the fiber mat prepared with different process parameters before and after the opening was tested using a filter material tester. The results show that the fiber with few shift defects can effectively reduce the resistance without greatly reducing the filtration efficiency. In fact, the results play a guiding role in the preparation of medium-effect fluffy filter media.

SCI ; EI

英语

其他

Project of Science and Technology of Foshan City[2015IT100152] ; University Innovation and Entrepreneurship Education Major Project of Guangzhou City[201709P05] ; Jihua Laboratory Foundation of the Guangdong Province Laboratory of China[X190071UZ190] ; Science and Technology Program of Guangzhou, China[201803010065] ; 2019 Dongguan Postgraduate Joint Training (Practice) Workstation Project[2019707126017]

Science & Technology - Other Topics ; Materials Science ; Physics

Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied

WOS:000738543800008

AIP Publishing

20213710884459

Air filters ; Centrifugation ; Defects ; Efficiency ; Electric fields ; Fiber bonding ; Fibers ; Polyvinyl alcohols ; Tin plate

Air Pollution Control:451.2 ; Biomedical Engineering:461.1 ; Steel:545.3 ; Electricity: Basic Concepts and Phenomena:701.1 ; Chemical Operations:802.3 ; Organic Polymers:815.1.1 ; Fiber Chemistry and Processing:819.3 ; Production Engineering:913.1 ; Materials Science:951

2-s2.0-85114558659

Scopus

1.Guangdong Provincial Key Laboratory of Micro-Nano Manufacturing Technology and Equipment,Guangdong University of Technology,Guangzhou,510006,China
2.Dongguan Beyclean Environmental Protection Technology Co.,Ltd.,Dongguan,523000,China
3.Department of Materials Science and Engineering,Southern University of Science and Technology,Shenzhen,518055,China
4.School of Biomedical and Pharmaceutical Sciences,Guangdong University of Technology,Guangzhou,51006,China

Zeng，Jun,Wang，Han,Chen，Rouxi,et al. Preparation of low resistance fluffy ultrafine filter media by centrifugal electrospinning[J]. AIP Advances,2021,11(9).

Zeng，Jun.,Wang，Han.,Chen，Rouxi.,Wu，Peixuan.,Chen，Xindu.,...&Xu，Guojie.(2021).Preparation of low resistance fluffy ultrafine filter media by centrifugal electrospinning.AIP Advances,11(9).

Zeng，Jun,et al."Preparation of low resistance fluffy ultrafine filter media by centrifugal electrospinning".AIP Advances 11.9(2021).