Ultrahigh strength nanocomposite hydrogels designed by locking oriented tunicate cellulose nanocrystals in polymeric networks

Hu, Dan‐Ning; Cui, Yande; Mo, Kangwei; Wang, Junmei; Huang, Yanan; Miao, Xiaran; Lin, Jinyou; Chang, Chunyu

doi:10.1016/j.compositesb.2020.108118

Cited by 64 publications

(30 citation statements)

References 43 publications

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“…As a rigid particle, the CNC has a significant reinforcement effect for nanocomposite materials. , Meanwhile, ILs are considered as a new type of green plasticizer owing to their low volatility, thermodynamic compatibility with polymers, and low toxicity . To investigate the potential of CNC-LA-IL as the reinforcing filler, we prepared the PVA/CNC-LA-IL nanocomposite films by the simple solution casting method utilizing the excellent dispersibility of CNC-LA-IL in water.…”

Section: Resultsmentioning

confidence: 99%

Ionic Liquids Grafted Cellulose Nanocrystals for High-Strength and Toughness PVA Nanocomposite

Wang

Liu

et al. 2020

ACS Appl. Mater. Interfaces

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The surface functionalization of cellulose nanocrystals (CNCs) is of significant importance for promoting its diverse applications. However, the efficient strategy reported so far for cation functionalization of CNCs remains limited owing to the electrostatic attraction between cationic modifiers and electronegative CNCs. Herein, a cationized CNC (CNC-LA-IL) has been successfully prepared in aqueous media by grafting the [VBIm][BF4], a kind of ionic liquid (IL), on the surface of a sulfated CNC using lactic acid (LA) as a linker molecule. This surface functionalization not only converts the negative charge of CNC suspensions to a positive charge (zeta potential reversed from −35 to +40 mV) but also leads to enhanced thermal stability and redispersibility of the dried CNC. To examine the reinforcing effect of IL-modified CNCs, poly(vinyl alcohol) (PVA)/CNC-LA-IL nanocomposite films were further prepared by the solution casting method. To one’s surprise, the as-prepared PVA/CNC-LA-IL films exhibit extraordinary improvement in both the tensile strength (92%) and the toughness (166%) with only a 0.3 wt % CNC loading. This study provides a green and facile method to achieve ionic liquids grafted CNCs for high-performance nanocomposites.

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Section: Resultsmentioning

confidence: 99%

Ionic Liquids Grafted Cellulose Nanocrystals for High-Strength and Toughness PVA Nanocomposite

Wang

Liu

et al. 2020

ACS Appl. Mater. Interfaces

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“…This method can be applied in the one‐pot preparation of double network hydrogels, which exhibit superior mechanical properties. As illustrated in Figure 5B, Chang and colleagues 61 reported a facile strategy to prepare highly ordered nanocomposite hydrogels with ultrahigh strength. Loosely crosslink network was first constructed by the host‐guest interactions between adamantine moiety contained polymers and β‐CD modified tunicate CNCs (TCNCs).…”

Section: Design Of Supramolecular Hydrogels Based On Cellulosementioning

confidence: 99%

Cellulose‐based hydrogels regulated by supramolecular chemistry

Zeng

Sun

et al. 2021

SusMat

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Supramolecular hydrogels based on cellulose attract increasing attention because of their novel structures and broad potential applications. In this review, hydrogels composed of cellulose are summarized according to category of supramolecular interactions in the networks including hydrogen bonds, electrostatic interactions, host‐guest interactions, and others. Supramolecular cellulose‐based hydrogels constructed by noncovalent bonding usually exhibit environmental friendliness, designing flexibility and diverse functions, and their properties are variable with incorporating different interactions in hydrogel networks. Moreover, with proper structures and networks, the supramolecular cellulose‐based hydrogels are adaptable in diverse fields of research and practical applications, such as self‐healing, shape memory, drug delivery, and some other renewable/sustainable materials. The future developments and challenges of the supramolecular hydrogels based on cellulose are discussed as well.

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“…It is the most abundant natural polymer on the earth and is produced in an annual output of 10 11 -10 12 tons. Cellulose nanocrystals are a substance derived from the crystalline region of cellulose and can be prepared by decomposing, oxidizing, and enzymatically or mechanically separating (Samir et al 2005;Habibi et al 2010;Peng et al 2020;Hu et al 2020;Klemm et al 2011;Larssona et al 2011). Tunicate cellulose nanocrystals are derived from tunicate cellulose, which is an animal fiber derived from tunicate.…”

Section: Introductionmentioning

confidence: 99%

“…Tunicate cellulose nanocrystals are derived from tunicate cellulose, which is an animal fiber derived from tunicate. Compared with other cellulose nanocrystals, tunicate cellulose nanocrystals have higher crystallinity, larger aspect ratio ([ 70), and excellent mechanical properties (modulus exceeds 143 GPa) (Habibi et al 2010), which have been widely used for the reinforcement of polymeric materials (Peng et al 2020;Hu et al 2020). Meanwhile, like other cellulose nanocrystals, tunicate cellulose nanocrystals have a large specific surface area and a large number of reactive functional groups that can be chemically modified.…”

Section: Introductionmentioning

confidence: 99%

Superabsorbent hydrogels enhanced by quaternized tunicate cellulose nanocrystals with adjustable strength and swelling ratio

et al. 2021

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Superabsorbent hydrogels were prepared from biodegradable material, where the matrix was cross-linked cellulose and carboxymethyl cellulose and reinforced by quaternized tunicate cellulose nanocrystals (Q-TCNCs). Due to the large amount of hydrophilic groups on cellulose, carboxymethyl cellulose, and Q-TCNCs, the hydrogels had excellent water absorption capacity. The equilibrium swelling ratio of superabsorbent hydrogels exceeded 500 g/g in deionized water and exceeded 120 g/g even in synthetic urine, which was higher than those of commercial absorbent materials composed of copolymers of acrylic acid and acrylamide. The water absorption performances and mechanical properties of the hydrogels could be adjusted by changing the content of Q-TCNCs. The resultant materials were expected to replace those polyolefin-based materials, thereby reducing environmental pollution.

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Ultrahigh strength nanocomposite hydrogels designed by locking oriented tunicate cellulose nanocrystals in polymeric networks

Cited by 64 publications

References 43 publications

Ionic Liquids Grafted Cellulose Nanocrystals for High-Strength and Toughness PVA Nanocomposite

Ionic Liquids Grafted Cellulose Nanocrystals for High-Strength and Toughness PVA Nanocomposite

Cellulose‐based hydrogels regulated by supramolecular chemistry

Superabsorbent hydrogels enhanced by quaternized tunicate cellulose nanocrystals with adjustable strength and swelling ratio

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