TY - JOUR
T1 - Processing and characterization of low-cost electrospun carbon fibers from organosolv lignin/polyacrylonitrile blends
AU - Ding, Rui
AU - Wu, Hongchao
AU - Thunga, Mahendra
AU - Bowler, Nicola
AU - Kessler, Michael R.
N1 - Publisher Copyright:
© 2015 Elsevier Ltd. All rights reserved.
PY - 2016/4/1
Y1 - 2016/4/1
N2 - The esterification of lignin with butyric anhydride decreases both the viscosity of lignin/PAN blend spinning solutions and their glass-transition temperature compared to unmodified lignin/PAN blends. The effect of blending PAN with lignin before or after butyration on the electrospinnability, miscibility and thermal stability of precursor blend fibers was investigated by morphological, rheological, and thermal analysis. The micromorphology, carbon structure, and mechanical properties of resultant carbonized fibers (CFs) were further evaluated. This study reveals a new approach to controlling inter-fiber bonding of lignin-based carbon nanofiber mats by manipulating the molecular structure of lignin while following a standard procedure of thermo-stabilization and carbonization treatment. Characterization results indicate that inter-fiber bonding in electrospun CF mats, induced by the high thermal mobility of butyrated lignin, favorably affected their mechanical properties.
AB - The esterification of lignin with butyric anhydride decreases both the viscosity of lignin/PAN blend spinning solutions and their glass-transition temperature compared to unmodified lignin/PAN blends. The effect of blending PAN with lignin before or after butyration on the electrospinnability, miscibility and thermal stability of precursor blend fibers was investigated by morphological, rheological, and thermal analysis. The micromorphology, carbon structure, and mechanical properties of resultant carbonized fibers (CFs) were further evaluated. This study reveals a new approach to controlling inter-fiber bonding of lignin-based carbon nanofiber mats by manipulating the molecular structure of lignin while following a standard procedure of thermo-stabilization and carbonization treatment. Characterization results indicate that inter-fiber bonding in electrospun CF mats, induced by the high thermal mobility of butyrated lignin, favorably affected their mechanical properties.
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U2 - 10.1016/j.carbon.2015.12.078
DO - 10.1016/j.carbon.2015.12.078
M3 - Article
AN - SCOPUS:84958165217
SN - 0008-6223
VL - 100
SP - 126
EP - 136
JO - Carbon
JF - Carbon
ER -