Maximizing the yield of nanocrystalline cellulose from cotton pulp fiber

Fan, Jinshi; Li, Yanhao

doi:10.1016/j.carbpol.2012.01.081

Cited by 98 publications

(55 citation statements)

References 13 publications

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“…Figure 1 shows the morphological change from raw materials to final products. The concentration of sulfuric acid, the reaction time, and the temperature were modulated for a high yield of CNCs (Fan and Li 2012). The details of the preparation conditions are presented in Table 1.…”

Section: Resultsmentioning

confidence: 99%

Cellulosic nanocomposite membranes from hydroxypropyl cellulose reinforced by cellulose nanocrystals

Wang

et al. 2014

Cellulose

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Cellulosic nanocomposite membranes were prepared by incorporation of cellulose nanocrystals (CNCs) into a hydroxypropyl cellulose (HPC) matrix using a mixing/evaporation technique. CNCs were obtained from filter paper using the sulfuric acid hydrolysis method with the aid of ultrasonication. The relationship between the microstructure and mechanical properties of the CNCs/HPC nanocomposite membranes was studied. Scanning electron microscopy showed that the CNCs were well dispersed in the HPC matrix, and the fracture surface demonstrated a fibrous characteristic. With increasing CNCs content, the tensile strength and Young's modulus of the CNCs/HPC nanocomposite membranes gradually increased. At 5 wt% content of CNCs, the strength was increased by 525 % and the Young's modulus by 124 % compared with pure HPC membrane. Moreover, the effect of the phase change of HPC on the mechanical properties of the CNCs 5wt% /HPC nanocomposite membranes and the corresponding mechanism were also studied.

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Section: Resultsmentioning

confidence: 99%

Cellulosic nanocomposite membranes from hydroxypropyl cellulose reinforced by cellulose nanocrystals

Wang

et al. 2014

Cellulose

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“…However, the yield of CNCs is very low (less than 30 wt.%) due to the excessive degradation. Fan and Li optimized the sulfuric acid hydrolysis conditions with cotton pulp as raw material, and the yield of CNCs reached to 63.8% [62]. Chen et al found that the yield of CNCs could be significantly improved by decreasing the concentration of sulfuric acid and prolonging reaction time.…”

Section: Mineral Acid Hydrolysismentioning

confidence: 99%

Recent Strategies in Preparation of Cellulose Nanocrystals and Cellulose Nanofibrils Derived from Raw Cellulose Materials

Xie

Yang

2018

International Journal of Polymer Science

209

128

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The recent strategies in preparation of cellulose nanocrystals (CNCs) and cellulose nanofibrils (CNFs) were described. CNCs and CNFs are two types of nanocelluloses (NCs), and they possess various superior properties, such as large specific surface area, high tensile strength and stiffness, low density, and low thermal expansion coefficient. Due to various applications in biomedical engineering, food, sensor, packaging, and so on, there are many studies conducted on CNCs and CNFs. In this review, various methods of preparation of CNCs and CNFs are summarized, including mechanical, chemical, and biological methods. The methods of pretreatment of cellulose are described in view of the benefits to fibrillation.

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“…Yield of hydrolysis was determined by drying 25 mL of NCC suspensions at 60 ºC in an 155 air circulating oven and determining NCC mass after water evaporation, a similar 156 procedure to those used by Fan and Li (2012) and Martínez-Sanz et al (2015). Solids 157 content in suspension was calculated and yield was expressed as % of initial fibers mass.…”

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confidence: 99%

Optimization of sulfuric acid hydrolysis conditions for preparation of nanocrystalline cellulose from enzymatically pretreated fibers

et al. 2016

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21NCC preparation using sulfuric acid hydrolysis from cellulase pretreated fibers was optimized in 22 order to obtain the highest possible yield with 62% and 65% wt. sulfuric acid throughout two 23 statistical plans. At optimal conditions (10U/g odp cellulase, 25 min hydrolysis, 47 ºC and 62 % 24 wt. H 2 SO 4 ) high yields were obtained (≥80%) including an increase produced by enzyme of ~9 %. 25Optimal conditions produced nanosized particles of around ~200 nm with a reduced surface 26 charge and sulfur content. The performed optimization allowed reducing the hydrolysis time in a 27 44%, and also increasing yield in more than 10% compared to results exposed in previous works.

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Maximizing the yield of nanocrystalline cellulose from cotton pulp fiber

Cited by 98 publications

References 13 publications

Cellulosic nanocomposite membranes from hydroxypropyl cellulose reinforced by cellulose nanocrystals

Cellulosic nanocomposite membranes from hydroxypropyl cellulose reinforced by cellulose nanocrystals

Recent Strategies in Preparation of Cellulose Nanocrystals and Cellulose Nanofibrils Derived from Raw Cellulose Materials

Optimization of sulfuric acid hydrolysis conditions for preparation of nanocrystalline cellulose from enzymatically pretreated fibers

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