Nanocellulose—fabrication, structure, properties, and application in the area of care and cure

Ioelovich, Michael

doi:10.1016/b978-0-323-41533-0.00009-x

Cited by 17 publications

(5 citation statements)

References 101 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…There were visible defects in certain fiber sections leading to splitting of the fiber perpendicular to the longitudinal axis. It is well known that the most accessible regions of the cellulose are disordered amorphous regions [ 1 ]; therefore, it is clear that the damages observed in Figure 1 are rather related to the destruction of cellulose polymer chains mostly in amorphous regions. The images of APS treated cellulose demonstrated a mixture of particles with sizes in range from 50 µm to 500 µm.…”

Section: Resultsmentioning

confidence: 98%

“…Cellulose is a natural, linear, renewable biopolymer, composed of d -glucopyranose units, and it is present naturally in all plants on earth. Nanocellulose is material obtained by the disintegration of cellulose into nanoscale particles such as cellulose nanowhiskers (CNC), cellulose nanofibers (CNF), cellulose nanospheres (CNS) and amorphous nanocellulose (ANC) [ 1 ]. The above-mentioned nanoscale particles are extensively investigated for a wide range of different uses in eco-friendly advanced applications and materials, such as nanocomposites, bionanomaterials and others [ 2 , 3 , 4 , 5 , 6 ].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Synthesis of Nanofibrillated Cellulose by Combined Ammonium Persulphate Treatment with Ultrasound and Mechanical Processing

et al. 2018

View full text Add to dashboard Cite

Ammonium persulfate has been known as an agent for obtaining nanocellulose in recent years, however most research has focused on producing cellulose nanocrystals. A lack of research about combined ammonium persulfate oxidation and common mechanical treatment in order to obtain cellulose nanofibrils has been identified. The objective of this research was to obtain and investigate carboxylated cellulose nanofibrils produced by ammonium persulfate oxidation combined with ultrasonic and mechanical treatment. Light microscopy, atomic force microscopy (AFM), powder X-Ray diffraction (PXRD), Fourier-transform infrared spectroscopy (FTIR), thermogravimetric analysis (TGA) and Zeta potential measurements were applied during this research. The carboxylated cellulose suspension of different fractions including nanofibrils, microfibrils and bundles were produced from bleached birch Kraft pulp fibers using chemical pretreatment with ammonium persulfate solution and further defibrillation using consequent mechanical treatment in a high shear laboratory mixer and ultrasonication. The characteristics of the obtained nanofibrils were: diameter 20–300 nm, crystallinity index 74.3%, Zeta potential −26.9 ± 1.8 mV, clear FTIR peak at 1740 cm−1 indicating the C=O stretching vibrations, and lower thermostability in comparison to the Kraft pulp was observed. The proposed method can be used to produce cellulose nanofibrils with defined crystallinity.

show abstract

Section: Resultsmentioning

confidence: 98%

Section: Introductionmentioning

confidence: 99%

Synthesis of Nanofibrillated Cellulose by Combined Ammonium Persulphate Treatment with Ultrasound and Mechanical Processing

et al. 2018

View full text Add to dashboard Cite

show abstract

“…It could be seen here also that this sample had the highest weight loss compare to others at 2nd onset temperature which can indicate that it is more combustible. However, PHA with addition of 2 wt% of NCF is more stable thermally compared to pure PHA composite and other PHA/NCF samples [11].…”

Section: Thermal Properties Of Pha/ncf Compositementioning

confidence: 83%

Effect on Thermal Properties of Nanocellulose Fibre (NCF) Reinforced Biodegradable Polyhydroxylalkanoates (PHA) Composite

Nazaruddin

Madusari

2021

JCEIB

View full text Add to dashboard Cite

Currently, biodegradable materials like polyhydroxyalkanoates (PHA) and polylactic acid (PLA) are receiving huge attention from the both scientific and industrial sectors. However, since PHA has poor thermal properties, there is a shortfall in the exploration of PHA ability with filler. Therefore, this research aim is to investigate the thermal effect of nanocellulose fiber (NCF) fillers with PHA polymer. The first solution of PHA composite is prepared by dissolving 1g of PHA in 40mL of dichloromethane at 30°C for 10 minutes. The PHA-NCF composite solution is prepared by adding 1wt%, 2wt%, 3wt%, and 4wt% of NCF dissolved in 40 mL of dichloromethane into the PHA solution. The mixture solution is agitated at 45°C with a magnetic stirrer for 10 minutes. The mixture is poured into a petri dish. The prepared films were characterized by Differential Scanning Calorimeter (DSC), Fourier Transforms Infrared Spectroscopy, (FTIR), and Thermogravimetric Analysis (TGA). The FTIR analysis shows that all PHA/NCF composite samples contain similar functional groups when compared with the pure PHA. No significant changes on the thermal properties of the PHA composite was observed with the addition of NCF fillers. However, comparison within the PHA/NCF samples shows that the PHA with 2% of NCF has a higher melting temperature and requires the highest enthalpy of melting. Hence, the addition of 2% of NCF is selected to be the optimum amount of NCF filler addition to the PHA composite.

show abstract

“…BCs have a high molecular weight, crystallinity index, and excellent mechanical stability [110,111]. Numerous techniques for extracting Nano cellulose (CNCs and CNFs) have been reported to improve its utilization in various plausible applications [112][113][114]. The diverse extraction procedures affect the kinds, qualities, and morphological aspects of NCs [103].…”

Section: Types Of Nano Cellulose and Extraction Methodsmentioning

confidence: 99%

Recent Advancement in Nano Cellulose as a Biomass-Based Adsorbent for Heavy Metal Ions Removal: A Review of a Sustainable Waste Management Approach

Sanad,

Farouz,

ElFaham

2023

adeletters

View full text Add to dashboard Cite

Rapid industrialization and unplanned urbanization have significantly increased environmental pollution. These human behaviors have resulted in massive waste discharges into the environment. As a result, organic and inorganic contaminants, including heavy metals, have accumulated in surface and groundwater. Heavy metals are highly carcinogenic and deadly. Heavy metal removal from drinking water has always been difficult. Conventional water treatment procedures could be more efficient, wasteful of energy, and generate massive amounts of harmful waste. In this initiative, researchers created a bio-based adsorption technology for removing heavy metal ions from polluted water. Nano celluloses (NCs) as biosorbents have sparked considerable attention due to their unique properties, such as the presence of several -OH groups on their surface, allowing the insertion of chemical moieties, a substantial specific surface area, strong mechanical properties, recyclability, and biodegradability. This review paper goes into great detail regarding the ways of producing Nano cellulose and its essential qualities. Many factors influence the use of NC- based adsorbents in water treatment systems, including synthesis pathways, functionalization of the surface, specific surface area, regeneration capacity, and reusability. Recent advances in bio-sorbent synthesis have prompted using bio-derived NC-based adsorbents in water treatment methods. This study also demonstrates that utilizing the potential for agricultural wastes, specifically sugarcane bagasse (SCB), as a precursor for Nano celluloses represents a sustainable approach, namely the conversion of low-value waste into a specific high-value product and its use in wastewater treatment.

show abstract

Nanocellulose—fabrication, structure, properties, and application in the area of care and cure

Cited by 17 publications

References 101 publications

Synthesis of Nanofibrillated Cellulose by Combined Ammonium Persulphate Treatment with Ultrasound and Mechanical Processing

Synthesis of Nanofibrillated Cellulose by Combined Ammonium Persulphate Treatment with Ultrasound and Mechanical Processing

Effect on Thermal Properties of Nanocellulose Fibre (NCF) Reinforced Biodegradable Polyhydroxylalkanoates (PHA) Composite

Recent Advancement in Nano Cellulose as a Biomass-Based Adsorbent for Heavy Metal Ions Removal: A Review of a Sustainable Waste Management Approach

Contact Info

Product

Resources

About