title: Effect of co-solvent on the spinnability and properties of electrospun cellulose nanofiber.
abstract: The effects of the type and the concentration of the co-solvent on the spinnability during cellulose electrospinning and the properties of the fiber were studied using cellulose dissolved in ionic liquid and co-solvent (DMF or DMAc). The prepared solution was electrospun onto a wired collector and coagulated in ethanol. As the weight ratio of co-solvent against ionic liquid increased, the spinnability was improved with stable whipping and splaying motion. Regardless of the co-solvent type, the higher co-solvent concentration resulted in finer fiber diameter, better web uniformity, higher crystallinity and better thermal stability. Comparing to DMAc, DMF showed more significant influence on the fiber diameter and the crystallinity.
authors.affiliation: Department of Textile Engineering, Konkuk University, 1 Hwayang-dong, Gwangjin-gu, Seoul 143-701, Republic of Korea.
authors.forename: Yongjun
authors.initials: Y
authors.lastname: Ahn
authors.affiliation: Department of Textile Engineering, Konkuk University, 1 Hwayang-dong, Gwangjin-gu, Seoul 143-701, Republic of Korea.
authors.forename: Doo-Hyun
authors.initials: DH
authors.lastname: Hu
authors.affiliation: Department of Textile Engineering, Konkuk University, 1 Hwayang-dong, Gwangjin-gu, Seoul 143-701, Republic of Korea.
authors.forename: Joo Hyung
authors.initials: JH
authors.lastname: Hong
authors.affiliation: Department of Microbial Engineering, Konkuk University, 1 Hwayang-dong, Gwangjin-gu, Seoul 143-701, Republic of Korea.
authors.forename: Sang Hyun
authors.initials: SH
authors.lastname: Lee
authors.affiliation: Department of Microbial Engineering, Konkuk University, 1 Hwayang-dong, Gwangjin-gu, Seoul 143-701, Republic of Korea.
authors.forename: Hyung Joo
authors.initials: HJ
authors.lastname: Kim
authors.affiliation: Department of Textile Engineering, Konkuk University, 1 Hwayang-dong, Gwangjin-gu, Seoul 143-701, Republic of Korea.
authors.forename: Hyungsup
authors.initials: H
authors.lastname: Kim
mesh_terms: D000081:Acetamides / Q000737:chemistry; D002482:Cellulose / Q000737:chemistry*; D003460:Crystallization; D004126:Dimethylformamide / Q000737:chemistry; D007093:Imidazoles / Q000737:chemistry; D052578:Ionic Liquids / Q000737:chemistry; D008855:Microscopy, Electron, Scanning; D057139:Nanofibers / Q000737:chemistry* / Q000648:ultrastructure; D012997:Solvents / Q000737:chemistry; D013818:Thermogravimetry
chemical_list: D000081:Acetamides; D007093:Imidazoles; D052578:Ionic Liquids; D012997:Solvents; D004126:Dimethylformamide; D002482:Cellulose; C013959:dimethylacetamide; C518739:1-ethyl-3-methylimidazolium