Laser irradiation method to prepare polyethylene porous fiber membrane with ultrahigh xylene gas filtration capacity

Junfeng Cheng; Xinghua You; Hao Li; Jun Zhou; Zhixiong Lin; Dun Wu; Chunlin Liu; Zheng Cao; Hongting Pu

doi:10.1016/j.jhazmat.2020.124395

Laser irradiation method to prepare polyethylene porous fiber membrane with ultrahigh xylene gas filtration capacity

J Hazard Mater. 2021 Apr 5:407:124395. doi: 10.1016/j.jhazmat.2020.124395. Epub 2020 Nov 9.

Authors

Junfeng Cheng¹, Xinghua You¹, Hao Li¹, Jun Zhou¹, Zhixiong Lin¹, Dun Wu², Chunlin Liu³, Zheng Cao¹, Hongting Pu⁴

Affiliations

¹ Jiangsu Key Laboratory of Environmentally Friendly Polymeric Materials, School of Materials Science and Engineering, Jiangsu Collaborative Innovation Center of Photovoltaic Science and Engineering, Changzhou University, Changzhou 213164, China.
² Jiangsu Key Laboratory of Environmentally Friendly Polymeric Materials, School of Materials Science and Engineering, Jiangsu Collaborative Innovation Center of Photovoltaic Science and Engineering, Changzhou University, Changzhou 213164, China; National Experimental Demonstration Center for Materials Science and Engineering (Changzhou University), Changzhou 213164, China.
³ Jiangsu Key Laboratory of Environmentally Friendly Polymeric Materials, School of Materials Science and Engineering, Jiangsu Collaborative Innovation Center of Photovoltaic Science and Engineering, Changzhou University, Changzhou 213164, China; Changzhou University Huaide College, Jingjiang 214500, China. Electronic address: chunlin301@hotmail.com.
⁴ Key Laboratory of Advanced Civil Engineering Materials, School of Materials Science & Engineering, Tongji University, Shanghai 201804, China. Electronic address: puhongting@tongji.edu.cn.

PMID: 33191024
DOI: 10.1016/j.jhazmat.2020.124395

Abstract

In recent years, volatile organic compound (VOC) gases have caused potential harm to people's health. This study reveals the preparation of polyethylene porous fiber membrane with excellent low-concentration VOCs filtration performance via laser irradiation technology. A neodymium-doped yttrium aluminum garnet (Nd:YAG) pulsed laser beam was used to scan the laser-sensitive low-density polyethylene/carbon black (LDPE/CB) fibers prepared by nanolayer coextrusion in the air. The controllable thermal energy generated by laser irradiation makes the surface of the fiber membrane to produce a porous carbon layer in situ. Laser power and scanning speed are important parameters for controlling laser-induced carbonization. The results indicate that the rich "fluffy" carbon structures on the surface of the porous fiber membrane can efficiently adsorb xylene gas. This study can provide a positive reference for the large-scale preparation of polyolefin porous fiber membrane with VOCs filtration by simple and efficient laser irradiation method.

Keywords: Laser irradiation; Nanolayer coextrusion; Polyethylene; Porous carbonized structure; VOCs filtration.

Publication types

Research Support, Non-U.S. Gov't