Fibers from polypropylene/nano carbon fiber composites

Kumar, Satish; Doshi, Harit; Srinivasarao, Mohan; Park, Jung O.; Schiraldi, David A.

doi:10.1016/s0032-3861(01)00744-3

Cited by 365 publications

(208 citation statements)

References 16 publications

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“…These studies include pitch/SWNT composite fiber, 10 polystyrene/MWNT (multiwall carbon nanotubes), 11 PMMA/SWNT, 12 and polypropylene/nanocarbon fiber. 13 While these studies confirm the potential benefits of reinforcing polymer and other matrices with carbon nanotubes, the challenge is to achieve good SWNT dispersion in the polymer and other matrices at significant nanotube weight fractions. In this paper we report PBO synthesis in poly(phosphoric acid) (PPA) in the presence of SWNTs, where SWNTs are well-dispersed, and the results of PBO/SWNT fiber processing as well as structure-property studies.…”

Section: Introductionmentioning

confidence: 82%

Synthesis, Structure, and Properties of PBO/SWNT Composites^&

et al. 2002

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Poly(p-phenylene benzobisoxazole) (PBO) has been synthesized in the presence of singlewall carbon nanotubes (SWNTs) in poly(phosphoric acid) (PPA) using typical PBO polymerization conditions. PBO and PBO/SWNT lyotropic liquid crystalline solutions in PPA have been spun into fibers using dry-jet wet spinning. The tensile strength of the PBO/SWNT fiber containing 10 wt % SWNTs is about 50% higher than that of the control PBO fibers containing no SWNTs. The structure and morphology of these fibers have been studied.

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Section: Introductionmentioning

confidence: 82%

Synthesis, Structure, and Properties of PBO/SWNT Composites^&

et al. 2002

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“…The outstanding electrical conductivity of these fibers places them among the most conducting SWNT-based composite fibers and 14,22,38,39,52 comparable with the most successful SWNT-reinforced composites reported to date. 7,[13][14][15][16]38,[53][54][55][56][57][58][59] …”

Section: Mechanical Propertiesmentioning

confidence: 99%

Exploiting high quality PEDOT:PSS–SWNT composite formulations for wet-spinning multifunctional fibers

2012

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In order to exploit the inherent properties of carbon nanotubes (CNT) in any polymer composite, systematic control of carbon nanotube loading and protocols that mitigate against CNT bundling are required. If such composites are to be rendered in fiber form via wet-spinning, then CNT bundling during the coagulation process must also be avoided. Here we have achieved this by utilizing highly exfoliated single walled carbon nanotubes (SWNT) and poly(3,4-ethylenedioxythiophene):poly(styrenesulfonicacid) (PEDOT:PSS) to obtain wet-spinnable composite formulations at various nanotube volume fractions (V f ). The addition of only 0.02 V f of aggregate-free and individually dispersed SWNT resulted in a significant enhancement of modulus, tensile strength, electrical conductivity and two cell electrode specific capacitance of PEDOT:PSS-SWNT composite fibers to 5.2 GPa, 200 MPa, 450 S cm −1 and 59 F g −1 by the rate of dY/dV f = 89 GPa, dσ/dV f = 3.2 GPa, dS/dV f = 13300 S cm −1 and 6 folds, respectively. In order to exploit the inherent properties of carbon nanotubes (CNT) in any polymer composite, systematic control of carbon nanotube loading and protocols that mitigate against CNT bundling are required. If such composites are to be rendered in fiber form via wet-spinning, then CNT bundling during the coagulation process must also be avoided. Here we have achieved this by utilizing highly exfoliated single walled carbon nanotubes (SWNT) and poly(3,4-ethylenedioxythiophene): poly(styrenesulfonicacid) (PEDOT:PSS) to obtain wet-spinnable composite formulations at various nanotube volume fractions (V f ). The addition of only 0.02 V f of aggregate-free and individually dispersed SWNT resulted in a significant enhancement of modulus, tensile strength, electrical conductivity and two cell electrode specific capacitance of PEDOT:PSS-SWNT composite fibers to 5.2 GPa, 200 MPa, 450 S cm À1 and 59 F g À1 by the rate of dY/dV f ¼ 89 GPa, ds/dV f ¼ 3.2 GPa, dS/dV f ¼ 13 300 S cm À1 and 6 folds, respectively.

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“…Polymer-nanotube composite fibers with strengths of up to 4.2GPa have been demonstrated (21). Thus we expect that individual nanotube-reinforced, electrospun fibers can attain high strengths and stiffnesses.…”

Section: Introductionmentioning

confidence: 96%

“…Due to their enforced alignment, nanotubes have shown significant promise as fillers in fibers (18)(19)(20)(21).…”

Section: Introductionmentioning

confidence: 99%