| 초록 |
Regenerated cellulose-based composite fibers containing multiwalled carbon nanotube with multiple hydrogen bonding sites (MWCNT-MHB) were manufactured via a facile organic solvent-based solution spinning, and their microstructure, molecular interaction, mechanical and electrical properties were investigated as a function of MWCNT-MHB content (0.5-30.0 wt%). The composite fibers with different MWCNT-MHB contents exhibited high performance in tensile mechanical properties such as tensile strength of 155.9-278.4 MPa, failure strain of 3.7-7.0%, and initial modulus of 11.3-13.9 GPa. In addition, the electrical conductivity of the composite fibers increased significantly from ~10-8 S/cm ~ 100 S/cm with increasing the MWCNT-MHB loading from 0.5 wt% to 30.0 wt%. The composite fiber with 30.0 wt% MWCNT-MHB, which has high electrical conductivity of 2.7 S/cm and good mechanical performance, was found to be applied for electrically conductive fibers and electric heating elements. |
