Morphological and structural features of polyacrylonitrile fibres spun by the dry-wet method

Kruchinin, N. P.; Spirova, T. A.; Медведев, В. А.; Serkov, A. T.; Radishevskii, M. B.; Volodin, V. I.; Prokhorov, V. A.; Krutova, I. N.; Egorova, R. V.; Grekhova, E. V.

doi:10.1007/bf00545854

Cited by 5 publications

(7 citation statements)

References 1 publication

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Control PAN fibers showed a ribbon-like appearance with a smooth fiber surface, which might be the result of using DMSO and water as the precipitation bath that led to probable sulfonation of DMSO. 39 A similar effect on the surface of PAN was also reported by Kruchinin et al…”

Section: Resultssupporting

confidence: 77%

“…The longitudinal and cross‐sectional SEM images of control PAN and alpaca/PAN composite fibers with different alpaca percentages are presented in Figure . Control PAN fibers showed a ribbon‐like appearance with a smooth fiber surface, which might be the result of using DMSO and water as the precipitation bath that led to probable sulfonation of DMSO . A similar effect on the surface of PAN was also reported by Kruchinin et al .…”

Section: Resultssupporting

confidence: 76%

“…where different combinations of coagulation bath were trialed but only the DMSO: water bath provided a smooth surface of PAN due to the sulfonation. 39 In addition, the cross-sectional image of the control PAN fibers showed a typical bean shape that might be due Figure 3. Viscosity versus shear rate (a) and logarithmic plots of shear stress versus shear rate (b) of 18 wt % control PAN and alpaca/PAN dope solutions.…”

Section: Resultsmentioning

confidence: 99%

See 2 more Smart Citations

Investigation on structure and characteristics of alpaca‐based wet‐spun polyacrylonitrile composite fibers by utilizing natural textile waste

Faruque

Remadevi

Razal

et al. 2019

J of Applied Polymer Sci

View full text Add to dashboard Cite

The composite alpaca/acrylic fibers were auspiciously produced through a wet spinning technique to reduce the consumption of petroleum-based polyacrylonitrile (PAN) and to enhance the thermal stability and moisture properties of the fibers. The waste alpaca fibers were converted into powder using a mechanical milling method without applying any chemicals. Alpaca powders were then blended with the PAN dope solution in different weight ratios of alpaca: PAN (10:90, 20:80, and 30:70) to wet spin the composite fibers. The Fourier transform infrared spectroscopy showed that all the composite fibers possess the functional groups of both alpaca and PAN. The nuclear magnetic resonance spectroscopy confirmed the presence of typical carbonyl carbon (C O) and nitrile carbon (C≡N) peaks of protein and PAN, respectively. The differential scanning calorimetry and thermogravimetric analysis revealed the enhanced thermal stability of alpaca/PAN composite fibers. The moisture properties of the composite fibers were subsequently found to increase with the incorporation of alpaca, more than three times that of pure PAN fibers. These results revealed a potential green pathway to producing composite acrylic fibers with improved thermal and moisture properties by applying textile waste materials.

show abstract

Section: Resultssupporting

confidence: 77%

Section: Resultssupporting

confidence: 76%

Section: Resultsmentioning

confidence: 99%

See 1 more Smart Citation

Investigation on structure and characteristics of alpaca‐based wet‐spun polyacrylonitrile composite fibers by utilizing natural textile waste

Faruque

Remadevi

Razal

et al. 2019

J of Applied Polymer Sci

View full text Add to dashboard Cite

show abstract

“…Therefore, it is important to achieve better precursor fibers, as this leads to high‐quality carbon fibers. It is well‐established that carbon fibers with high mechanical properties feature a round cross section and a smooth fiber surface 17. However, the surface roughness of carbon fibers can improve the mechanical properties of composite materials reinforced with carbon fibers, as reported by Tsai and Lin 18.…”

Section: Resultsmentioning

confidence: 93%

“…The PAN fibers fabricated with the DMF solvent, as shown in Figure 3(a), exhibited a rougher surface than those of the PAN fibers fabricated with the DMSO solvent, as demonstrated in Figure 3(b). According to Kruchinin et al,17 a coagulation bath with DMSO solvent resulted in the formation of fibers with a smoother surface. In contrast to this study, smoother surface fibers were also achieved with a solvent‐free coagulation bath with dope preparation with DMSO solvent.…”

Section: Resultsmentioning

confidence: 99%

Effect of the solvent type on the formation and physical properties of polyacrylonitrile fibers via a solvent‐free coagulation bath

Mahmod

Ismail

Mustafa

et al. 2011

J of Applied Polymer Sci

View full text Add to dashboard Cite

Polyacrylonitrile (PAN) fibers were fabricated via a dry-jet wet-spinning technique, and a solventfree coagulation bath system was adopted. The effects of different types of dope solvent on the formation and physical properties of the PAN fibers were investigated. Dimethylformamide and dimethyl sulfoxide (DMSO) were selected as the solvents and were added to a spinning solution consisting of 18 wt % PAN. The PAN fibers were examined with field emission scanning electron microscopy, differential scanning calorimetry, and thermogravimetric analysis. The field emission scanning electron micrographs revealed that the PAN fibers with the DMSO solvent exhibited a more circular shape and a smoother skin. The PAN fibers with the DMSO solvent had their glass-transition temperature (T g ) at 121C. This study indicated that the different types of dope solvent used in the dope preparation did not affect T g of the PAN fibers because of the solvent-free coagulation bath system; however, they significantly affected the physical formation of the PAN fibers.

show abstract

Effect of the draw ratio in dry jet-wet spinning on aromatic copolysulfonamide fibers

Wang

2020

NUCL SCI TECH

View full text Add to dashboard Cite

Morphological and structural features of polyacrylonitrile fibres spun by the dry-wet method

Cited by 5 publications

References 1 publication

Investigation on structure and characteristics of alpaca‐based wet‐spun polyacrylonitrile composite fibers by utilizing natural textile waste

Investigation on structure and characteristics of alpaca‐based wet‐spun polyacrylonitrile composite fibers by utilizing natural textile waste

Effect of the solvent type on the formation and physical properties of polyacrylonitrile fibers via a solvent‐free coagulation bath

Effect of the draw ratio in dry jet-wet spinning on aromatic copolysulfonamide fibers

Contact Info

Product

Resources

About