Tags

Type your tag names separated by a space and hit enter

Sunflower oil cake-derived cellulose nanocrystals: Extraction, physico-chemical characteristics and potential application.
Int J Biol Macromol. 2019 Sep 01; 136:241-252.IJ

Abstract

In this work, sunflower oil cake (SOC) was identified as bio-sourced material for cellulose nanocrystals (CNC) production using chemical treatments followed by sulfuric acid hydrolysis. The hydrolysis was performed at 64% acid concentration, a temperature of 50 °C and at two different hydrolysis times, 15 min (CNC15) and 30 min (CNC30). It was found that CNC exhibited a diameter of 9 ± 3 nm and 5 ± 2 nm, a length of 354 ± 101 nm and 329 ± 98 nm, a crystallinity of 75% and 87%, a surface charge density of ~1.57 and ~1.88 sulfate groups per 100 anhydroglucose units and a zeta potential value of -25.6 and -30.7 mV, for CNC15 and CNC30, respectively. The thermal degradation under nitrogen atmosphere started at 225 °C (CNC15), which is relatively higher than the temperature for sulfuric acid hydrolyzed CNC from other sources. Due to a high importance of CNC application in aqueous systems, the rheological behaviour of CNC suspensions at various concentrations was evaluated by the steady shear viscosity measurements and the oscillatory dynamic tests. The results showed that the CNC suspensions exhibited a gel-like behaviour at very low CNC concentrations (0.1-1%) wherein a strong CNC entangled network is formed. Polymer nanoreinforcing capability of the newly produced CNC was also investigated in this study. CNC filled PVA nanocomposite films were produced at various CNC contents (1, 3, 5 and 8 wt%) and their mechanical and transparency properties were investigated, resulting in transparent nanocomposite materials with strong mechanical properties. The study suggested other possibilities to utilize agricultural wastes from SOC for CNC production with potential application as reinforcement in polymer nanocomposites.

Authors+Show Affiliations

Materials Science and Nanoengineering Department (MSN), Mohammed VI Polytechnic University (UM6P), Lot 660 - Hay Moulay Rachid, 43150 Benguerir, Morocco.Materials Science and Nanoengineering Department (MSN), Mohammed VI Polytechnic University (UM6P), Lot 660 - Hay Moulay Rachid, 43150 Benguerir, Morocco. Electronic address: mounir.elachaby@um6p.ma.Materials Science and Nanoengineering Department (MSN), Mohammed VI Polytechnic University (UM6P), Lot 660 - Hay Moulay Rachid, 43150 Benguerir, Morocco.Materials Science and Nanoengineering Department (MSN), Mohammed VI Polytechnic University (UM6P), Lot 660 - Hay Moulay Rachid, 43150 Benguerir, Morocco.Moroccan Foundation for Advanced Science, Innovation and Research (MAScIR), Composites and Nanocomposites Center (CNC), Rabat, Morocco.Moroccan Foundation for Advanced Science, Innovation and Research (MAScIR), Composites and Nanocomposites Center (CNC), Rabat, Morocco.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

31195048

Citation

Kassab, Zineb, et al. "Sunflower Oil Cake-derived Cellulose Nanocrystals: Extraction, Physico-chemical Characteristics and Potential Application." International Journal of Biological Macromolecules, vol. 136, 2019, pp. 241-252.
Kassab Z, El Achaby M, Tamraoui Y, et al. Sunflower oil cake-derived cellulose nanocrystals: Extraction, physico-chemical characteristics and potential application. Int J Biol Macromol. 2019;136:241-252.
Kassab, Z., El Achaby, M., Tamraoui, Y., Sehaqui, H., Bouhfid, R., & Qaiss, A. E. K. (2019). Sunflower oil cake-derived cellulose nanocrystals: Extraction, physico-chemical characteristics and potential application. International Journal of Biological Macromolecules, 136, 241-252. https://doi.org/10.1016/j.ijbiomac.2019.06.049
Kassab Z, et al. Sunflower Oil Cake-derived Cellulose Nanocrystals: Extraction, Physico-chemical Characteristics and Potential Application. Int J Biol Macromol. 2019 Sep 1;136:241-252. PubMed PMID: 31195048.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Sunflower oil cake-derived cellulose nanocrystals: Extraction, physico-chemical characteristics and potential application. AU - Kassab,Zineb, AU - El Achaby,Mounir, AU - Tamraoui,Youssef, AU - Sehaqui,Houssine, AU - Bouhfid,Rachid, AU - Qaiss,Abou El Kacem, Y1 - 2019/06/10/ PY - 2019/04/23/received PY - 2019/06/02/revised PY - 2019/06/09/accepted PY - 2019/6/14/pubmed PY - 2019/12/31/medline PY - 2019/6/14/entrez KW - Cellulose nanocrystals KW - Polymer nanocomposites KW - Sunflower oil cake SP - 241 EP - 252 JF - International journal of biological macromolecules JO - Int J Biol Macromol VL - 136 N2 - In this work, sunflower oil cake (SOC) was identified as bio-sourced material for cellulose nanocrystals (CNC) production using chemical treatments followed by sulfuric acid hydrolysis. The hydrolysis was performed at 64% acid concentration, a temperature of 50 °C and at two different hydrolysis times, 15 min (CNC15) and 30 min (CNC30). It was found that CNC exhibited a diameter of 9 ± 3 nm and 5 ± 2 nm, a length of 354 ± 101 nm and 329 ± 98 nm, a crystallinity of 75% and 87%, a surface charge density of ~1.57 and ~1.88 sulfate groups per 100 anhydroglucose units and a zeta potential value of -25.6 and -30.7 mV, for CNC15 and CNC30, respectively. The thermal degradation under nitrogen atmosphere started at 225 °C (CNC15), which is relatively higher than the temperature for sulfuric acid hydrolyzed CNC from other sources. Due to a high importance of CNC application in aqueous systems, the rheological behaviour of CNC suspensions at various concentrations was evaluated by the steady shear viscosity measurements and the oscillatory dynamic tests. The results showed that the CNC suspensions exhibited a gel-like behaviour at very low CNC concentrations (0.1-1%) wherein a strong CNC entangled network is formed. Polymer nanoreinforcing capability of the newly produced CNC was also investigated in this study. CNC filled PVA nanocomposite films were produced at various CNC contents (1, 3, 5 and 8 wt%) and their mechanical and transparency properties were investigated, resulting in transparent nanocomposite materials with strong mechanical properties. The study suggested other possibilities to utilize agricultural wastes from SOC for CNC production with potential application as reinforcement in polymer nanocomposites. SN - 1879-0003 UR - https://www.unboundmedicine.com/medline/citation/31195048/Sunflower_oil_cake_derived_cellulose_nanocrystals:_Extraction_physico_chemical_characteristics_and_potential_application_ DB - PRIME DP - Unbound Medicine ER -