Skip to main content
U.S. Department of Energy
Office of Scientific and Technical Information

Rheological behavior and fiber spinning of polyacrylonitrile (PAN)/Carbon nanotube (CNT) dispersions at high CNT loading

Journal Article · · Polymer
 [1];  [2];  [3];  [4];  [3];  [3];  [2];  [3]
  1. Georgia Institute of Technology, Atlanta, GA (United States). School of Chemical and Biomolecular Engineering; Georgia Institute of Technology, Atlanta, GA (United States)
  2. Georgia Institute of Technology, Atlanta, GA (United States). School of Chemical and Biomolecular Engineering; Georgia Institute of Technology, Atlanta, GA (United States). Renewable Bioproducts Inst.
  3. Georgia Institute of Technology, Atlanta, GA (United States). School of Materials Science and Engineering
  4. Georgia Institute of Technology, Atlanta, GA (United States). School of Materials Science and Engineering; Georgia Institute of Technology, Atlanta, GA (United States). Renewable Bioproducts Inst.
Rheological studies play an important role in polymer processing including fiber spinning. In the current work, rheological behavior has been studied for polyacrylonitrile (PAN)/carbon nanotube (CNT) dispersions in dimethyl formamide (DMF), where CNT loading is as high as 15 wt% of the total solids (polymer + CNT). The presence of CNTs increased the elastic-like and shear thinning behavior of the dispersions. The terminal slope of the log G' versus log G" curve, which was used to characterize the homogeneity of solution or dispersion, is dependent on the CNT concentration but independent of temperature between 0 and 60 °C. PAN/CNT-10 (90 wt% PAN +10 wt% CNT) and PAN/CNT-15 were gel spun at different conditions, with small diameter capillary at high shear rate and large diameter capillary at relatively low shear rate. Additionally, for PAN/CNT-10, fiber spinning with lower molecular weight polymer showed increased continuous jetting time when compared to spinning with higher molecular weight polymer. In addition, the rheological behavior of PAN/cellulose nanocrystal (CNC) dispersion with 20–60 wt% CNC was also compared to that of the PAN/CNT dispersions. PAN/CNC and PAN/CNT share similarities in both rheological behavior and fiber spinning at high filler loading.
Research Organization:
Vuronyx Technologies, LLC, Woburn, MA (United States)
Sponsoring Organization:
US Air Force Office of Scientific Research (AFOSR); USDOE; USDOE Office of Science (SC)
Grant/Contract Number:
SC0013743
OSTI ID:
1851845
Alternate ID(s):
OSTI ID: 1776186
Journal Information:
Polymer, Journal Name: Polymer Journal Issue: C Vol. 215; ISSN 0032-3861
Publisher:
ElsevierCopyright Statement
Country of Publication:
United States
Language:
English

References (31)

Strength of Nanotubes, Filaments, and Nanowires From Sonication-Induced Scission journal October 2009
A study of spinnability in the wet-spinning of acrylic fibers journal October 1968
The spinnability of polymer fluid filaments journal September 1976
Rheological behavior of polymer blends journal June 1984
Study on spinnability of polyacrylonitrile solution based on dynamics simulation of dry-jet wet spinning: Research Article journal February 2018
Processing, Structure, and Properties of PAN/MWNT Composite Fibers journal July 2010
Polyacrylonitrile solution homogeneity study by dynamic shear rheology and the effect on the carbon fiber tensile strength journal March 2016
Structure, properties, and applications of polyacrylonitrile/carbon nanotube ( CNT ) fibers at low CNT loading journal July 2020
Mechanism of breakage of liquid threads: To the problem of “spinnability” of liquids journal August 1964
Effect of rheological factors on the length of liquid threads journal September 1964
A theoretical study on fiber spinnability journal September 1970
Rheological behavior of multiwalled carbon nanotube/polycarbonate composites journal May 2002
Investigation on sensitivity of a polymer/carbon nanotube composite strain sensor journal March 2010
Electrical and electromagnetic interference shielding properties of flow-induced oriented carbon nanotubes in polycarbonate journal September 2011
The strain sensing and thermal–mechanical behavior of flexible multi-walled carbon nanotube/polystyrene composite films journal October 2011
Synthesis, spinning, and properties of very high molecular weight poly(acrylonitrile-co-methyl acrylate) for high performance precursors for carbon fiber journal December 2014
Electrical conductivity and Joule heating of polyacrylonitrile/carbon nanotube composite fibers journal December 2014
Rheological behavior of polyacrylonitrile and polyacrylonitrile/lignin blends journal February 2017
Ductile polyacrylonitrile fibers with high cellulose nanocrystals loading journal July 2017
Structure and rheological behavior of polypropylene interphase at high carbon nanotube concentration journal August 2018
Processing, structure and properties of polyacrylonitrile fibers with 15 weight percent single wall carbon nanotubes journal December 2020
Thermal conductivity of carbon nanotubes and their polymer nanocomposites: A review journal July 2011
Polymer/Carbon Nanotube Nano Composite Fibers–A Review journal February 2014
Use of Dynamic Rheological Behavior to Estimate the Dispersion of Carbon Nanotubes in Carbon Nanotube/Polymer Composites journal September 2008
Determination of the order-disorder transition temperature of block copolymers journal January 1989
Polymer Nanocomposites Containing Carbon Nanotubes journal August 2006
Steady Shear Response of Carbon Nanotube Networks Dispersed in Poly(ethylene oxide) journal June 2008
Cellulose nanomaterials review: structure, properties and nanocomposites journal January 2011
Structural and Functional Fibers journal July 2017
Evaporation Blocker for Cone-Plate Rheometry of Volatile Samples journal December 2005
Sonication-Induced Modification of Carbon Nanotubes: Effect on the Rheological and Thermo-Oxidative Behaviour of Polymer-Based Nanocomposites journal March 2018

Similar Records

Structure, properties, and applications of polyacrylonitrile/carbon nanotube ( CNT ) fibers at low CNT loading
Journal Article · Thu Jul 09 20:00:00 EDT 2020 · Polymer Engineering and Science · OSTI ID:1638122

Continuous stabilization of polyacrylonitrile (PAN) - carbon nanotube (CNT) fibers by Joule heating
Journal Article · Tue Feb 02 19:00:00 EST 2021 · Chemical Engineering Science · OSTI ID:1851843

Nanoscale Structure–Property Relationships of Polyacrylonitrile/CNT Composites as a Function of Polymer Crystallinity and CNT Diameter
Journal Article · Mon Dec 18 23:00:00 EST 2017 · ACS Applied Materials and Interfaces · OSTI ID:1565667