Hydrogen-Bonding-Aided Fabrication of Wood Derived Cellulose Scaffold/Aramid Nanofiber into High-Performance Bulk Material

Han, Xiaodong; Wu, Weijie; Wang, Jingwen; Tian, Zhiwei; Jiang, Shaohua

doi:10.3390/ma14185444

Cited by 15 publications

(10 citation statements)

References 47 publications

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“…Water significantly enhances flexibility, even in the presence of only a small amount of moisture within the material. BW, in particular, has been observed to contribute positively to the deformation , and mechanical properties − of cellulosic materials. As illustrated in Figure A,B, Han et al rehydrated delignified wood, allowing water to penetrate cellulose nanofibers and establish additional hydrogen bonds.…”

Section: Using Water Vs Removing Watermentioning

confidence: 99%

The Critical Roles of Water in the Processing, Structure, and Properties of Nanocellulose

Jing,

Wu,

Siciliano

et al. 2023

ACS Nano

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The cellulose industry depends heavily on water owing to the hydrophilic nature of cellulose fibrils and its potential for sustainable and innovative production methods. The emergence of nanocellulose, with its excellent properties, and the incorporation of nanomaterials have garnered significant attention. At the nanoscale level, nanocellulose offers a higher exposure of hydroxyl groups, making it more intimate with water than micro-and macroscale cellulose fibers. Gaining a deeper understanding of the interaction between nanocellulose and water holds the potential to reduce production costs and provide valuable insights into designing functional nanocellulosebased materials. In this review, water molecules interacting with nanocellulose are classified into free water (FW) and bound water (BW), based on their interaction forces with surface hydroxyls and their mobility in different states. In addition, the waterholding capacity of cellulosic materials and various water detection methods are also discussed. The review also examines water-utilization and water-removal methods in the fabrication, dispersion, and transport of nanocellulose, aiming to elucidate the challenges and tradeoffs in these processes while minimizing energy and time costs. Furthermore, the influence of water on nanocellulose properties, including mechanical properties, ion conductivity, and biodegradability, are discussed. Finally, we provide our perspective on the challenges and opportunities in developing nanocellulose and its interplay with water.

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Section: Using Water Vs Removing Watermentioning

confidence: 99%

The Critical Roles of Water in the Processing, Structure, and Properties of Nanocellulose

Jing,

Wu,

Siciliano

et al. 2023

ACS Nano

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“…The processed wood has a specific strength higher than that of most structural metals and alloys, making it low-cost and high-performance. More detailed information concerning techniques and results of wood modifications aimed at changing the mechanical and other service properties of the wood can be found in books [ 8 , 30 , 127 ], reviews [ 128 ], and original papers [ 131 , 132 , 133 , 134 , 135 , 136 ].…”

Section: Modification and Hardening Of Wood And Cellulosementioning

confidence: 99%

Multiscale Mechanical Performance of Wood: From Nano- to Macro-Scale across Structure Hierarchy and Size Effects

et al. 2022

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This review describes methods and results of studying the mechanical properties of wood at all scales: from nano- to macro-scale. The connection between the mechanical properties of material and its structure at all these levels is explored. It is shown that the existing size effects in the mechanical properties of wood, in a range of the characteristic sizes of the structure of about six orders of magnitude, correspond to the empirical Hall-Petch relation. This “law” was revealed more than 60 years ago in metals and alloys and later in other materials. The nature, as well as the particular type of the size dependences in different classes of materials can vary, but the general trend, “the smaller the stronger”, remains true both for wood and for other cellulose-containing materials. The possible mechanisms of the size effects in wood are being discussed. The correlations between the mechanical and thermophysical properties of wood are described. Several examples are used to demonstrate the possibility to forecast the macromechanical properties of wood by means of contactless thermographic express methods based on measuring temperature diffusivity. The research technique for dendrochronological and dendroclimatological studies by means of the analysis of microhardness and Young’s modulus radial dependences in annual growth rings is described.

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“…Nanocellulose, as a kind of cellulose-based nanomaterial, exhibits a better enhancement effect than traditional cellulose fibers due to the characteristics of nanomaterials, such as nano-scale effect, high surface area, outstanding mechanical strength and high thermal stability, etc. [ 26 , 27 , 28 ]. Therefore, it was selected as a reinforcement material to increase the strength and rigidity of the epoxy resin in this study.…”

Section: Introductionmentioning

confidence: 99%

The Synergistic Toughening and Strengthening Effects of Cork Particles and Nanocellulose on Rosin-Based Epoxy Resin

Sun

Bai

2022

Polymers

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In order to develop a bio-based epoxy resin with high mechanical and thermal performance, cork particles and nanocellulose were introduced into the rosin-based epoxy resin to improve the toughness, stiffness and thermal stability. The flexural properties of the epoxy composites indicated that the strength and modulus were reduced when the content of cork particles was relatively high (>3%) due to the low stiffness and modulus of cork itself. However, the flexural performance was significantly improved after the addition of 1% nanocellulose. In contrast to the flexural properties, the impact toughness results showed the synergistic toughening effects of nanocellulose and cork particles on the rosin-based epoxy resin. The highest impact toughness of 13.35 KJ/m2 was found in the epoxy composite with 1% cellulose nanofibers and 3% cork particles, an increase of 149.07% compared to the neat epoxy. Cork particle size also had a significant effect on the mechanical properties of the composites. Both the flexural and impact results showed first a rise and then a fall with a decrease in the cork size. TGA results indicated cork particles and nanocellulose could have a synergistic enhancing effect on the thermal stability of the rosin-based epoxy resin. This work can add value to rosin and cork waste and widen the industrial applications of the epoxy resin.

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Hydrogen-Bonding-Aided Fabrication of Wood Derived Cellulose Scaffold/Aramid Nanofiber into High-Performance Bulk Material

Cited by 15 publications

References 47 publications

The Critical Roles of Water in the Processing, Structure, and Properties of Nanocellulose

The Critical Roles of Water in the Processing, Structure, and Properties of Nanocellulose

Multiscale Mechanical Performance of Wood: From Nano- to Macro-Scale across Structure Hierarchy and Size Effects

The Synergistic Toughening and Strengthening Effects of Cork Particles and Nanocellulose on Rosin-Based Epoxy Resin

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