The preparation of porous polyamide-imide nanofiber membrane by using electrospinning for MF application

Autor:	Hong Sik Byun, Won Gi Jang, Kyeong Su Jeon
Rok vydání:	2013
Předmět:	Materials science Scanning electron microscope Polyamide-imide Ocean Engineering Pollution Electrospinning Dimethylacetamide Contact angle chemistry.chemical_compound Membrane chemistry Chemical engineering Nanofiber Ultimate tensile strength Polymer chemistry Water Science and Technology
Zdroj:	Desalination and Water Treatment. 51:5283-5288
ISSN:	1944-3986 1944-3994
Popis:	A membrane material based on polyamide-imide (PAI) has received a great attention lately due to its thermal resistance, outstanding mechanical property, and low thermal expansion coefficient. In this study, we have focused on the preparation of porous PAI nanofiber membranes (PNMs) for water treatments. The preparation of PNMs was completed via the electrospinning method using PAI in a mixed solvent of dimethylacetamide and tetrahydrofuran. The resulting PNMs were then thermally treated to improve mechanical properties. These PAI-based membranes were characterized by scanning electron microscope, tensometer (tensile strength and elongation), pore characteristic, contact angle analyzer (contact angle), and dead-end cell device (water flux). We noticed that the pore diameter (1.0–0.3 μm) of PNMs was systematically controlled by simply increasing the number of PNMs layers. As these nanofiber membranes were found to be highly hydrophobic, we also attempted to prepare hydrophilic PNMs with a PAI solut...
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::b2f41e4231fd56806ce2ce530fda7f3b https://doi.org/10.1080/19443994.2013.768755 Zobrazit plný text záznamu