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Kaveh, Amir, Moeini-Jazani, Omid, Ahmadi Lashaki, Morteza, Mortezaee, Mehrzad, Razavi Zadeh, Mohammad. (1401). The Rheology Behavior of Aramid and Cellulose Nanowhisker Suspensions. , 56(2), 193-201. doi: 10.22059/jchpe.2021.331971.1365
Amir Kaveh; Omid Moeini-Jazani; Morteza Ahmadi Lashaki; Mehrzad Mortezaee; Mohammad Razavi Zadeh. "The Rheology Behavior of Aramid and Cellulose Nanowhisker Suspensions". , 56, 2, 1401, 193-201. doi: 10.22059/jchpe.2021.331971.1365
Kaveh, Amir, Moeini-Jazani, Omid, Ahmadi Lashaki, Morteza, Mortezaee, Mehrzad, Razavi Zadeh, Mohammad. (1401). 'The Rheology Behavior of Aramid and Cellulose Nanowhisker Suspensions', , 56(2), pp. 193-201. doi: 10.22059/jchpe.2021.331971.1365
Kaveh, Amir, Moeini-Jazani, Omid, Ahmadi Lashaki, Morteza, Mortezaee, Mehrzad, Razavi Zadeh, Mohammad. The Rheology Behavior of Aramid and Cellulose Nanowhisker Suspensions. , 1401; 56(2): 193-201. doi: 10.22059/jchpe.2021.331971.1365

The Rheology Behavior of Aramid and Cellulose Nanowhisker Suspensions

Journal of Chemical and Petroleum Engineering
دوره 56، شماره 2، اسفند 2022، صفحه 193-201    اصل مقاله (428.78 K)
نوع مقاله: Research Paper
شناسه دیجیتال (DOI): 10.22059/jchpe.2021.331971.1365
نویسندگان
Amir Kaveh1؛ Omid Moeini-Jazani* 2؛ Morteza Ahmadi Lashaki3؛ Mehrzad Mortezaee4؛ Mohammad Razavi Zadeh4
1Department of Polymer Engineering ,Amir Kabir University, Tehran, Iran
2Department of Chemical Engineering, Faculty of Engineering, University of Isfahan, Isfahan, Iran
3Department of Chemical Engineering, Iran University of Science and Technology, Tehran, Iran
4Faculty of Materials and Manufacturing Engineering, Malek Ashtar University of Technology, Tehran, Iran
چکیده
The flow responses of aramid and cellulose nanowhisker (fibrids) or CNCs (cellulose nanocrystal) suspended in a sulfuric acid and water respect at loadings of about 17% weight fraction was determined in transient shear flow. The effect of temperature and shearing conditions were examined. Aramid solution exhibits strong shear thinning with power law indices about 0.2-0.3, and cellulose nanowhisker suspension indices is below 0.15. Formation of an interacting flocculated network at rest is the reason for the large relative viscosity and offers the least flow resistance during shear flow. The structure formed at rest is easily destroyed, and this is the reason for the observed shear thinning. Evolution of shear stress data versus time over four of shear rate were described the structure of nematic phase in aramid\sulfuric acid solution. Also shear rheology results of nanowhisker/water suspension show shear thinning behavior, and behave as a plastic system at different temperature. For spinning process, the aramid\sulfuric acid dope through the air gap entered into cold water. Orientation of polymer solution emerged from the spinneret and through very high extensional shear in the air gap resulted in excellent tensile properties of the final spun fibers.
کلیدواژه‌ها
Cellulose Nanocrystal CNC؛ Aramid؛ Nematic behaviour؛ Rheology؛ Flow response
مراجع
  1. Friedel G. Mesomorphic states of matter. Ann. Phys. 1922; 18: 273–474.
  2. Yang H H. Aromatic High-Strength Fibers, 1st ed.; Wiley-VCH: New York, NY, USA, 1989; 207–289.
  3. Zhou M, Frydman V, Frydman L. On the Molecular organization of PPTA in sulfuric acid: an NMR study. J. Phys. Chem, 1996; 100: 19280–19288.
  4. Kiyo V N, Rozhdestvenskaya T A, Serova L D. Rheological properties of liquid-crystalline solutions of poly(p-phenylene terephthalamide) and behavior of the jet in spinning through an air space. Fibre Chem, 1997; 29: 81–86.
  5. Picken S J, Zwaag S V, Northolt M G. Molecular and macroscopic orientational order in aramid solutions: a model to explain the influence of some spinning parameters on the modulus of aramid yarns, Polymer, 1992; 33: 2998–3006.
  6. Slugin I V, Sklyarova G B, Kashirin A I, Tkacheva L V, Komissarov S V. Microfilament yarn for ballistic protection. J. Fibre Chem, 2006; 38: 22–24.
  7. Picken S J, Aerts J, Doppert H L, Reuvers A J, Northolt M G. Structure and rheology of aramid solutions: transient rheological and rheo-optical measurements. Macromolecules, 1991; 24: 1366–1375.
  8. Doppert H L, Picken S J. Rheological properties of aramid solutions: transient flow and rheooptical measurements. Mol. Cryst. Liq. Cryst, 1987; 153: 109–116.
  9. Picken S J. Phase transitions and rheology of aramid solutions. Liq. Cryst, 1989; 5: 1635–1643.
  10. Picken S J, Aerts J, Visser R, Northolt M G. Structure and rheology of aramid solutions: X-ray scattering measurements. Macromolecules, 1990; 23: 3849–3854.
  11. Baird D G, Ballman R L. Comparison of the rheological properties of concentrated solutions of a rod-like and a flexible chain polyamide. J. Rheol, 1979; 23: 505–524.
  12. Rol F, Belgacem M N, Gandini A, Bras J. Recent advances in surface-modified cellulose nanofibrils.  Prog Polym Sci, 2019; 88 : 241–264.
  13. Xu Y, Atrens A, Stokes J R. Structure and rheology of liquid crystal hydroglass formed in aqueous nanocrystalline cellulose suspensions. Journal of colloid and interface science, 2019; 555 : 702-713.
  14. Alves L, Ferraz E, Lourenço A F, Ferreira P J. Tuning rheology and aggregation behaviour of TEMPO-oxidised cellulose nanofibrils aqueous suspensions by addition of different acids. Carbohydrate Polymers, 2020; 237: 116109.
  15. Xu Y, Atrens A, Stokes J R. A review of nanocrstalline cellulose suspensions: Rheology, liquid crystal ordering and colloidal phase behavior. Advances in Colloid and Interface Science, 2019; 30361-6.
  16. Wang J M, Ding S J, Wu T M. Rheology, crystallization behavior, and mechanical properties of poly (butylene succinate-co-terephthalate)/cellulose nanocrystal composites, Polymer Testing, 2020; 87: 106551.
  17. Shojaeiarani J, Bajwa D S, Stark N M., Bajwa S G. Rheological properties of cellulose nanocrystals engineered polylactic acid nanocomposites. Compos. B Eng,2019; 161: 483–489.
  18. Pan J, Hamad W Y, Straus S K. Parameters Affecting the Chiral Nematic Phase of Nanocrystalline Cellulose Films. Macromolecules, 2010; 43: 3851−3858.
  19. Pääkkö M, Ankerfors M, Kosonen H, Nykänen A, Ahola S, Österberg M, Ruokolainen J, Laine J, Larsson P, Ikkala O, Lindström T. Enzymatic hydrolysis combined with mechanical shearing and highpressure homogenization for nanoscale cellulose fibrils and strong gels. Bio Macromol, 2007; 8: 1934-1945.
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