TY - GEN
T1 - Enhancing electromechanical properties of a lignin-based multifunctional composite through chemical reactive blending with functionalized carbon nanotubes
AU - Kanbargi, Nihal
AU - Rohewal, Sargun Singh
AU - Gao, Yawei
AU - Kearney, Logan
AU - Carrillo, Jan Michael
AU - Bowland, Christopher
AU - Naskar, Amit
AU - Gupta, Sumit
N1 - Publisher Copyright:
© COPYRIGHT SPIE. Downloading of the abstract is permitted for personal use only.
PY - 2024
Y1 - 2024
N2 - Electrical conductivity in nanocomposites is a complex phenomenon governed by a myriad number of physical and chemical factors. However, the interrelationships between segmental dynamics and its effect on electrical conductivity is less understood. Herein we create a solvent free nanocomposite synthesized in a single step process. Facile covalent bonding is achieved between functionalized nanotubes and the lignin-based matrix using small molecule coupling agents. The covalent bonding and shearing are hypothesized to lead to a breaking of the larger agglomerates, leading to excellent dispersion and thereby percolation at much lower concentrations than can be achieved by traditional blending. We show that while the above process can be utilized to achieve excellent dispersion and thus percolation and conductivity, segmental dynamics also plays a key role in dictating electrical conductivity.
AB - Electrical conductivity in nanocomposites is a complex phenomenon governed by a myriad number of physical and chemical factors. However, the interrelationships between segmental dynamics and its effect on electrical conductivity is less understood. Herein we create a solvent free nanocomposite synthesized in a single step process. Facile covalent bonding is achieved between functionalized nanotubes and the lignin-based matrix using small molecule coupling agents. The covalent bonding and shearing are hypothesized to lead to a breaking of the larger agglomerates, leading to excellent dispersion and thereby percolation at much lower concentrations than can be achieved by traditional blending. We show that while the above process can be utilized to achieve excellent dispersion and thus percolation and conductivity, segmental dynamics also plays a key role in dictating electrical conductivity.
UR - http://www.scopus.com/inward/record.url?scp=85194053783&partnerID=8YFLogxK
U2 - 10.1117/12.3012176
DO - 10.1117/12.3012176
M3 - Conference contribution
AN - SCOPUS:85194053783
T3 - Proceedings of SPIE - The International Society for Optical Engineering
BT - Nondestructive Characterization and Monitoring of Advanced Materials, Aerospace, Civil Infrastructure, and Transportation XVIII
A2 - Gyekenyesi, Andrew L.
A2 - Shull, Peter J.
A2 - Wu, H. Felix
A2 - Yu, Tzuyang
PB - SPIE
T2 - Nondestructive Characterization and Monitoring of Advanced Materials, Aerospace, Civil Infrastructure, and Transportation XVIII 2024
Y2 - 25 March 2024 through 27 March 2024
ER -