Structural variations of cotton cellulose nanocrystals from deep eutectic solvent treatment: micro and nano scale

Ling, Zhe; Edwards, J. Vincent; Guo, Zongwei; Prevost, Nicolette; Nam, Sunghyun; Wu, Qinglin; French, Alfred D.; Xu, Feng

doi:10.1007/s10570-018-2092-9

Cited by 86 publications

(48 citation statements)

References 43 publications

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“…NC showed peaks at 14.1°, 16.1° and 22.4°. Those peaks correspond to

0, 110 and 020 lattice planes of the cellulose I crystalline form [ 20 , 21 ]. The locations of peaks were similar to those of plant celluloses [ 15 , 16 ] and BC [ 17 , 18 , 19 ]; however, their diffraction peaks were relatively less sharp.…”

Section: Resultsmentioning

confidence: 99%

Natural Rubber Latex Foam Reinforced with Micro- and Nanofibrillated Cellulose via Dunlop Method

et al. 2020

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Natural rubber latex foam (NRLF) was reinforced with micro- and nanofibrillated cellulose at a loading content of 5–20 parts per hundred of rubber (phr) via the Dunlop process. Cellulose powder from eucalyptus pulp and bacterial cellulose (BC) was used as a microcellulose (MC) and nanocellulose (NC) reinforcing agent, respectively. NRLF, NRLF-MC, and NRLF-NC exhibited interconnected macroporous structures with a high porosity and a low-density. The composite foams contained pores with sizes in a range of 10–500 µm. As compared to MC, NC had a better dispersion inside the NRLF matrix and showed a higher adhesion to the NRLF matrix, resulting in a greater reinforcement. The most increased tensile strengths for MC and NC incorporated NRLF were found to be 0.43 MPa (1.4-fold increase) and 0.73 MPa (2.4-fold increase), respectively, by reinforcing NRLF with 5 phr MC and 15 phr NC, whereas the elongation at break was slightly reduced. Compression testing showed that the recovery percentage was improved to 34.9% (1.3-fold increase) by reinforcement with 15 phr NC, whereas no significant improvement in the recovery percentage was observed with MC. Both NRLF-MC and NRLF-NC presented hydrophobic surfaces and good thermal stability up to 300 °C. Due to their highly porous structure, after a prolong immersion in water, NRLF composites had high water uptake abilities. According to their properties, the composite foams could be further modified for use as green absorption or supporting materials.

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“…NC showed peaks at 14.1°, 16.1° and 22.4°. Those peaks correspond to

Section: Resultsmentioning

confidence: 99%

Natural Rubber Latex Foam Reinforced with Micro- and Nanofibrillated Cellulose via Dunlop Method

et al. 2020

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“…Ling et al modified cotton fibers ( Gossypium hirstum L.) using choline chloride/oxalic acid dihydrate in various molar ratios (1: 1; 1: 2; and 1: 3) at 80 °C or 100 °C, and 1:100 hydro modulus [118]. Subsequently, the treated fibers were subjected to high-power ultrasonic homogenization (300 W, 20 kHz, 1 h).…”

Section: Deep Eutectic Solvents For Isolation Of Nanocellulosementioning

confidence: 99%

Use of Deep Eutectic Solvents in Polymer Chemistry–A Review

2019

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This review deals with two overlapping issues, namely polymer chemistry and deep eutectic solvents (DESs). With regard to polymers, specific aspects of synthetic polymers, polymerization processes producing such polymers, and natural cellulose-based nanopolymers are evaluated. As for DESs, their compliance with green chemistry requirements, their basic properties and involvement in polymer chemistry are discussed. In addition to reviewing the state-of-the-art for selected kinds of polymers, the paper reveals further possibilities in the employment of DESs in polymer chemistry. As an example, the significance of DES polarity and polymer polarity to control polymerization processes, modify polymer properties, and synthesize polymers with a specific structure and behavior, is emphasized.

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“…Figure 1d–f showed the SEM images, exhibiting the rod‐like shape of CNCs with about 300–450 nm length, which confirmed their successful extraction from grape pomace. Remarkably, the morphology of CNCs was not affected by increasing the hydrolysis time, and the longer hydrolysis time can contribute to isolate smaller CNCs 78. The average diameter of extracted CNCs samples was determined by analyzing the high‐magnification SEM images.…”

Section: Resultsmentioning

confidence: 99%

Cellulose Nanocrystals Extracted from Grape Pomace with Deep Eutectic Solvents and Application for Self‐Healing Nanocomposite Hydrogels

Liu

Ren

et al. 2020

Macro Materials & Eng

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In the progress of red‐winemaking, eco‐friendly, facile, and efficient reutilization of grape pomace is an important issue for sustainable industrial processes. In this manuscript, cellulose nanocrystals (CNCs) as extensive and expensive nanomaterials, are efficiently extracted from grape pomace by using deep eutectic solvents. Moreover, the obtained CNCs as the renewable reinforcing agent are successfully fabricated of self‐healing nanocomposite hydrogels. The self‐healing (93.5%) and mechanical strength (4.77 MPa) in hydrogels are outstandingly improved by the addition of functional CNCs, in which abundant carboxyl functional groups are modified by in situ esterification in the process of extracting CNCs. Importantly, these strain‐sensitive and self‐healing nanocomposite hydrogels can be further used as flexible strain sensors to detect human motion.

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Structural variations of cotton cellulose nanocrystals from deep eutectic solvent treatment: micro and nano scale

Cited by 86 publications

References 43 publications

Natural Rubber Latex Foam Reinforced with Micro- and Nanofibrillated Cellulose via Dunlop Method

Natural Rubber Latex Foam Reinforced with Micro- and Nanofibrillated Cellulose via Dunlop Method

Use of Deep Eutectic Solvents in Polymer Chemistry–A Review

Cellulose Nanocrystals Extracted from Grape Pomace with Deep Eutectic Solvents and Application for Self‐Healing Nanocomposite Hydrogels

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