Recycling of poly(ethylene terephthalate) by electrospinning to enhanced the filtration efficiency

Catégorie : Recyclage Matière
Date :21 octobre 2020
Siskova, Alena Opalkova; Frajova, Jaroslava; Nosko, Martin.
Materials Letters : 278
Poly(ethylene terephthalate) (PET) from domestic plastic waste was processed by electrospinning from solution hexafluoro-2-propanol/dichloromethane. The nanofibrous membrane with an average diameter of 95 +/- 37 nm was prepared and filtration efficiency was tested. It was shown that the recycled PET (r-PET) nanofibrous membrane retained the particles with a size of around 120 nm with more than 98% efficiency. Moreover, users comfort characteristics such as vapour permeability and breathability were tested. Herein, it is shown that 94% of water vapour permeation is achieved. Breathability 39 mm.s 1 is in the lower limit of the comfortable range; despite this unfavorable result, the r-PET membrane could be used as a filtration media for personal protection because this disadvantage can be mitigated by the area and shape of the filter.