Design of Bioinspired Conductive Smart Textile Page: IX
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Figure 3-3. SEM images of stabilized precursor fibers (a) PAN (b) PCFA-20 (c) PCFA-
40 (d) PCFA-60 and carbonized fibers (e) PAN CF (f) PCFA-20 CF (g) PCFA-40 CF (h)
PCFA-60 CF.................................................................................................................. 65
Figure 3-4. DSC scans of the precursor fibers and PCFA powder............................ 67
Figure 3-5. FTIR spectra of (a) PAN fibers and PCFA powder; (b) PCFA powder spectra
from 1650 to 700 cm-1; (c) fiber blends with PAN & PCFA powder ......................... 69
Figure 3-6. (a) Storage Modulus versus Temperature (b) Loss Modulus versus
Temperature and (c) Tan Delta versus Temperature of electrospun precursor fibers... 70
Figure 3-7. Storage Modulus versus Temperature after carbonization...................... 71
Figure 3-8. Raman deconvoluted spectra of carbonized fibers derived from PCFA/PAN
blend. ............................................................................................................................ 73
Figure 3-9. Comparison of conductivity of PCFA/PAN blend by rule of mixture and
e x p e rim e nta l d a ta .......................................................................................................... 7 5
Figure 3-10. TEM and electronic diffraction pattern for PCFA-60 carbon fiber.......... 76
Figure 4-1. SEM images shows the varying morphology of carbonized fibers at different
conditions. Numbers corresponds to the sample number mentioned in Table 4-2........ 89
Figure 4-2. Factors effecting the diameter of carbonized fibers ............................... 90
Figure 4-3. Interaction effect of factors on the diameter of carbonized fibers............ 91
Figure 4-4. Factors effecting the electrical conductivity of carbonized fiber mesh.........92
Figure 4-5. Interaction effect of factors on the conductivity of the carbonized fiber mesh.
......................................................................................................................................93
Figure 5-1. Schematic of coaxial electrospining and CO2 foaming rector used for
fabricatio n of po ro us fibe rs ......................................................................................... 10 1
Figure 5-2. Pictorial description of (a) foamed PCL(PBAT) and (b) foamed PBAT(PCL)
coaxial fiber ................................................................................................................ 102
Figure 5-3. SEM images of (a) foamed PCL(PBAT) (b) cross-sectional view of foamed
PCL(PBAT) (c) foamed PBAT(PCL) and (d) cross-sectional view of foamed PBAT(PCL)
electrospun fibers........................................................................................................ 105
Figure 5-4. Stress-strain curves of (a) foamed PCL(PBAT) and PCL(PBAT) fibers (b)
Foamed PBAT(PCL) and PBAT(PCL) fibers...............................................................107
Figure 5-5. Storage Modulus vs Temperature of (a) foamed PCL(PBAT) and PCL(PBAT)
fibers (b) Foamed PBAT(PCL) and PBAT(PCL) fibers ............................................... 109ix
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Rizvi, Syed Hussain Raza. Design of Bioinspired Conductive Smart Textile, dissertation, August 2017; Denton, Texas. (https://digital.library.unt.edu/ark:/67531/metadc1062837/m1/11/: accessed July 18, 2024), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; .