Thermal and rheological characteristics of biobased carbon fiber precursor derived from low molecular weight organosolv lignin

Oroumei, Azam, Fox, Bronwyn and Naebe, Minoo 2015, Thermal and rheological characteristics of biobased carbon fiber precursor derived from low molecular weight organosolv lignin, ACS sustainable chemistry and engineering, vol. 3, no. 4, pp. 758-769, doi: 10.1021/acssuschemeng.5b00097.

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Title Thermal and rheological characteristics of biobased carbon fiber precursor derived from low molecular weight organosolv lignin
Author(s) Oroumei, Azam
Fox, Bronwyn
Naebe, Minoo
Journal name ACS sustainable chemistry and engineering
Volume number 3
Issue number 4
Start page 758
End page 769
Total pages 12
Publisher American Chemical Society
Place of publication Washington, D.C.
Publication date 2015
ISSN 2168-0485
Keyword(s) Science & Technology
Physical Sciences
Technology
Chemistry, Multidisciplinary
Engineering, Chemical
Chemistry
Engineering
Carbon fiber
Lignin
Biopolymer
Synergistic effect
Kinetics
Electrospinning
KRAFT LIGNIN
ELECTROSPUN POLYACRYLONITRILE
CO-PYROLYSIS
NANOFIBERS
BLENDS
CELLULOSE
MATS
POLYMERS
BEHAVIOR
BIOMASS
Summary In the present work, electrospinnability as well as thermal, rheological, and morphological characteristics of low molecular weight hardwood organosolv lignin, as a potential precursor for carbon fiber, was investigated. Submicromter biobased fibers were electrospun from a wide range of polymer solutions with different ratios of organosolv lignin to polyacrylonitrile (PAN). Rheological studies were conducted by measuring viscosity, surface tension, and electrical conductivity of hybrid polymer solutions, and used to correlate electrospinning behavior of solutions with the morphology of the resultant electrospun composite fibers. Using scanning electron microscopy (SEM) images, the solutions that led to the formation of bead-free uniform fibers were found. Differential scanning calorimetry (DSC) analysis revealed that lignin-based fibers enjoy higher decomposition temperatures than that of pure PAN. Thermal stability of the lignin-based fibers was investigated by thermogravimetric analysis (TGA) indicating a high carbon yield of above 50% at 600 °C, which is highly crucial in the production of low-cost carbon fiber. It was also observed that organosolv lignin synergistically affects thermal decomposition of composite fibers. A significant lower activation energy was found for the pyrolysis of lignin-derived electrospun fibers compared to that of pure PAN.
Language eng
DOI 10.1021/acssuschemeng.5b00097
Field of Research 091202 Composite and Hybrid Materials
100708 Nanomaterials
091012 Textile Technology
Socio Economic Objective 970109 Expanding Knowledge in Engineering
HERDC Research category C1 Refereed article in a scholarly journal
ERA Research output type C Journal article
Copyright notice ©2015, American Chemical Society
Persistent URL http://hdl.handle.net/10536/DRO/DU:30075413

Document type: Journal Article
Collection: Institute for Frontier Materials
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