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Comparison of rheological properties of kraft and microcrystalline cellulose dissolved in 1-butyl- 3-methylimidazolium chloride


 
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1. Title Title of document Comparison of rheological properties of kraft and microcrystalline cellulose dissolved in 1-butyl- 3-methylimidazolium chloride
 
2. Creator Author's name, affiliation, country Lahcen EL HAMDAOUI; University Mohammed V, Faculty of Sciences, Rabat, Morocco; Morocco
 
2. Creator Author's name, affiliation, country Mahdi El Bouchti; ESITH (Higher School of textile and clothing industries), Casablanca, Morocco; Morocco
 
2. Creator Author's name, affiliation, country Mohammed EL Moussaouiti; University Mohammed V, Faculty of Sciences, Rabat,; Morocco
 
2. Creator Author's name, affiliation, country Said Gmouh; National Center for Scientific Research and Technique, Rabat; Morocco
 
3. Subject Discipline(s)
 
3. Subject Keyword(s) Cellulose; Ionic Liquid; Rheology; Viscosity-temperature; Shear viscosity.
 
4. Description Abstract

Rheological behavior of kraft (KrC) and microcrystalline (MCC) cellulose dissolved in ionic liquid (IL) 1-butyl- 3-methylimidazolium chloride ([Bmim]Cl) were characterized using an advanced rheometer. Firstly, we studied experimentally the mass transport properties (viscosity and ionic conductivity) of [Bmim]Cl, [Bmim]Cl/DMAc and 0.25 wt% KrC/[Bmim]Cl/DMAc solutions  at different concentration of DMAc at 25 °C. Then the shear rheology of cellulose/[Bmim]Cl solutions was studied in a range of concentrations (0.25-2 wt%) and temperatures (25-80 °C). As expected, DMAc dramatically decreases the viscosity and increases the conductivity of the solutions. The viscosity of kraft cellulose of high molecular weight was higher than that the microcrystalline cellulose of low molecular weight. All KrC/IL/DMAc and MCC/IL/DMAc solutions behave as non-Newtonian fluids. The viscosity of solutions increased with increase in solution concentration. The heightening of solution temperature lowers sharply the viscosity of the solution. The activation energy of KrC is higher than that of MCC.
 
5. Publisher Organizing agency, location
 
6. Contributor Sponsor(s)
 
7. Date (YYYY-MM-DD) 30-12-2017
 
8. Type Status & genre Peer-reviewed Article
 
8. Type Type
 
9. Format File format PDF
 
10. Identifier Uniform Resource Identifier https://revues.imist.ma/index.php/morjchem/article/view/5439
 
10. Identifier Digital Object Identifier (DOI) https://doi.org/10.48317/IMIST.PRSM/morjchem-v6i2.5439
 
11. Source Title; vol., no. (year) Moroccan Journal of Chemistry; Vol 6, No 2 (2018)
 
12. Language English=en en
 
13. Relation Supp. Files
 
14. Coverage Geo-spatial location, chronological period, research sample (gender, age, etc.)
 
15. Rights Copyright and permissions Copyright (c) 2017 Moroccan Journal of Chemistry