Research on Polypropylene Electret Melt-Blown Nonwoven Doped with Nano-Tourmaline

Autor:	Xiao Ning Jiao, Bowen Cheng, Yuan Lin Ren, Weimin Kang, Ya Liu
Rok vydání:	2011
Předmět:	Polypropylene Materials science Tourmaline Mechanical Engineering Drop (liquid) Doping Charge density Condensed Matter Physics chemistry.chemical_compound chemistry Mechanics of Materials Lower pressure Nano General Materials Science Electret Composite material
Zdroj:	Materials Science Forum. :449-452
ISSN:	1662-9752
DOI:	10.4028/www.scientific.net/msf.675-677.449
Popis:	Electret filter composed of permanently charged electret fibers is a good material for environmental protection. A novel kind of electret melt-blown nonwovens (EMNs) doped with nano-tourmaline was developed by corona charging in this paper. The structure of web, mechanical properties, surface charge density and filtration efficiency of samples were discussed. The results showed that the structure of EMNs became loose and the initial surface charge density was increased markedly. Furthermore, the EMNs exhibited higher filtration efficiency and lower pressure drop, especially the content of nano-tourmaline was about 6 wt. %.
Databáze:	OpenAIRE
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