Capturing PM2.5 emissions from 3D printing via nanofiber-based air filter

Rao, Chengchen, Gu, Fu, Zhao, Peng, Sharmin, Nusrat, Gu, Haibing and Fu, Jianzhong (2017) Capturing PM2.5 emissions from 3D printing via nanofiber-based air filter. Scientific Reports, 7 (1). 10366/1-10366/10. ISSN 2045-2322

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This study investigated the feasibility of using polycaprolactone (PCL) nanofiber-based air filters to capture PM2.5 particles emitted from fused deposition modeling (FDM) 3D printing. Generation and aggregation of emitted particles were investigated under different testing environments. The results show that: (1) the PCL nanofiber membranes are capable of capturing particle emissions from 3D printing, (2) relative humidity plays a signification role in aggregation of the captured particles, (3) generation and aggregation of particles from 3D printing can be divided into four stages: the PM2.5 concentration and particles size increase slowly (first stage), small particles are continuously generated and their concentration increases rapidly (second stage), small particles aggregate into more large particles and the growth of concentration slows down (third stage), the PM2.5 concentration and particle aggregation sizes increase rapidly (fourth stage), and (4) the ultrafine particles denoted as 鈥渂uilding unit鈥 act as the fundamentals of the aggregated particles. This work has tremendous implications in providing measures for controlling the particle emissions from 3D printing, which would facilitate the extensive application of 3D printing. In addition, this study provides a potential application scenario for nanofiber-based air filters other than laboratory theoretical investigation.

Item Type: Article
Schools/Departments: University of Nottingham Ningbo China > Faculty of Science and Engineering > Department of Chemical and Environmental Engineering
Identification Number:
Depositing User: CHEN, Jiaorong
Date Deposited: 07 Feb 2018 09:09
Last Modified: 04 May 2020 19:04

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