Stimuli induced cellulose nanomaterials alignment and its emerging applications: A review

Zhu, Qianqian; Qian, Yong; Sun, Jianzhong; Chen, Honglei; Xu, Wanhai; Liu, Jun; Wang, Qianqian

doi:10.1016/j.carbpol.2019.115609

Cited by 51 publications

(41 citation statements)

References 137 publications

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“…Nanocellulose, which can be used as nanoscale reinforcing fillers, are known for their high aspect ratio, low density, large surface area, excellent mechanical performance, and low environmental impact [ 1 , 2 ]. Generally, nanocellulose can be classified into three different categories, namely, cellulose nanocrystals (CNCs), cellulose nanofibrils (CNFs), and bacterial cellulose (BC) based on their properties and isolation methodologies [ 3 , 4 ].…”

Section: Introductionmentioning

confidence: 99%

Structure and Properties of Polylactic Acid Biocomposite Films Reinforced with Cellulose Nanofibrils

Wang

Sun

et al. 2020

Molecules

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Polylactic acid (PLA) is one of the most promising biodegradable and recyclable thermoplastic biopolymer derived from renewable feedstock. Nanocellulose reinforced PLA biocomposites have received increasing attention in academic and industrial communities. In the present study, cellulose nanofibrils (CNFs) was liberated by combined enzymatic pretreatment and high-pressure homogenization, and then subsequently incorporated into the PLA matrix to synthesize PLA/CNF biocomposite films via solution casting and melt compression. The prepared PLA/CNF biocomposite films were characterized in terms of transparency (UV-Vis spectroscopy), chemical structure (attenuated total reflectance-Fourier transform infrared, ATR-FTIR; X-ray powder diffraction, XRD), thermal (thermogravimetric analyzer, TGA; differential scanning calorimetry, DSC), and tensile properties. With 1.0–5.0 wt % additions of CNF to the PLA matrix, noticeable improvements in thermal and physical properties were observed for the resulting PLA/CNF biocomposites. The 2.5 wt % addition of CNF increased the tensile strength by 8.8%. The Tonset (initial degradation temperature) and Tmax (maximum degradation temperature) after adding 5.0 wt % CNF was increased by 20 °C, and 10 °C, respectively in the nitrogen atmosphere. These improvements were attributed to the good dispersibility and improved interfacial interaction of CNF in the PLA matrix.

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Section: Introductionmentioning

confidence: 99%

Structure and Properties of Polylactic Acid Biocomposite Films Reinforced with Cellulose Nanofibrils

Wang

Sun

et al. 2020

Molecules

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“…The TGA curve of the RC film exhibited a small weight loss in the region from room temperature to 150 ℃ due to the loss of moisture in the films. Following this, a two-stage degradation of RC film was located at roughly 250 ℃ to 380 ℃ and 400 ℃ to 700 ℃, respectively (Zhu et al 2020c). The first steep decomposition region was attributed to the loss of the glycosidic bonds of cellulose, while the second stage, for the RC-CaCO3 film, it was related to further degradation of cellulose and CaCO3 in the films (Jia et al 2012;Fu et al 2014).…”

Section: Thermal Analysis Rc-caco 3 Filmsmentioning

confidence: 93%

Preparation and characterization of regenerated cellulose biocomposite film filled with calcium carbonate by in situ precipitation

Zhu

Wang

Sun

et al. 2020

BioRes

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The application of cellulose hybrid biocomposites filled with calcium carbonate has attracted wide attention in packaging and other fields in recent years. In this study, regenerated cellulose (RC) films filled with calcium carbonate were successfully prepared by dissolution, regeneration, and in situ precipitation of CaCO3. The optical, mechanical, physical, and chemical properties of biocomposites were examined by UV-visible spectroscopy, tensile testing, scanning electron microscopy (SEM), X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), and thermogravimetric analyses (TGA). The results showed that RC films with different CaCO3 contents exhibited good flexibility, optical properties, mechanical strength, and thermal stability. The RC biocomposite filled with calcium carbonate showed a tensile strength of 84.7 ± 1.5 MPa at optimum conditions. These RC biocomposites filled with CaCO3 may find application in packaging.

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“…[41] CNCs,on the other hand, have been utilized in high-end applications, including chiral templates [36,42,43] and stimuli-responsive materials. [44][45][46][47] This distinction is by no means strict but it arises from the intrinsic properties.C NCs are more well-defined, both chemically and morphologically,f orming stable,f luid aqueous dispersions,w hereas CNFs are more heterogeneous and often also contain other plant-based polysaccharides.As ar esult, the physico-chemical properties of CNCs are often more easily interpreted than those of CNFs.B ecause of the low gelling point and chemical heterogeneity,a lso the modification of CNCs is am ore established field than that of CNFs. [17] Fore xample,C NCs have been popular as substrates for graft polymerizations that transform the nanoparticles into hairy rod structures.…”

Section: Current Aspects Of Nanocellulose Materials Researchmentioning

confidence: 99%

Chemical Modification of Reducing End‐Groups in Cellulose Nanocrystals

et al. 2020

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(Finland) and works as apart of the FinnCEREScommunity (Aalto University and VTT,F inland) in the group of Eero Kontturi. She received her PhD in 2017 from TU Dresden (Germany) under the direction of Prof. S. Fischer.H er current research lies at the interface between nanocellulose materials science and organic synthesis. Gwendoline Delepierre has aM aster's degree in chemistry from KU Leuven (Belgium), where she was involved in various research projects on cellulose nanocrystals. She started her PhD at the Adolphe Merkle Institute in 2017 under the supervision of Prof. Christoph Weder and Dr.Justin Zoppe. She is currently on an exchange at the University of British Columbia in Vancouver (Canada) under the supervision of Prof.

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Stimuli induced cellulose nanomaterials alignment and its emerging applications: A review

Cited by 51 publications

References 137 publications

Structure and Properties of Polylactic Acid Biocomposite Films Reinforced with Cellulose Nanofibrils

Structure and Properties of Polylactic Acid Biocomposite Films Reinforced with Cellulose Nanofibrils

Preparation and characterization of regenerated cellulose biocomposite film filled with calcium carbonate by in situ precipitation

Chemical Modification of Reducing End‐Groups in Cellulose Nanocrystals

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