Bio-based polyurethane reinforced with cellulose nanofibers: A comprehensive investigation on the effect of interface

Benhamou, Karima; Kaddami, Hamid; Magnin, Albert; Dufresne, Alain; Ahmad, Azizan

doi:10.1016/j.carbpol.2014.12.081

Cited by 128 publications

(73 citation statements)

References 51 publications

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“…Otherwise as CNC content is increased, a decrease in χcSS is observed. The creation of new WBPU-CNC interactions and the greater amount of reinforcement gradually hinder soft domains crystallization (Benhamou, Kaddami, Magnin, Dufresne, & Ahmad, 2015;Saralegi et al, 2013). In the case of 5 wt% of CNC, a raise in χcSS has been observed instead, reaching a value similar to WBPU matrix.…”

Section: Resultsmentioning

confidence: 92%

“…This tendency can be also observed in water absorption values where WA values increase with the increase of CNC content. Water molecules diffuse through the material and tend to approach the WBPU-CNC interface where CNC are located, (Benhamou et al, 2015) and which results greater as CNC content increase. In addition, once the percolation threshold is established, the diffusion of water molecules is promoted (Mariano et al, 2014), and that could be the reason of the considerable increase in WA values observed for the sample with 3 wt% of CNC.…”

Section: Resultsmentioning

confidence: 99%

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Cellulose nanocrystals reinforced environmentally-friendly waterborne polyurethane nanocomposites

Santamaria‐Echart

Ugarte

García‐Astrain

et al. 2016

Carbohydrate Polymers

130

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Section: Resultsmentioning

confidence: 92%

Section: Resultsmentioning

confidence: 99%

Cellulose nanocrystals reinforced environmentally-friendly waterborne polyurethane nanocomposites

Santamaria‐Echart

Ugarte

García‐Astrain

et al. 2016

Carbohydrate Polymers

130

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“…For NR‐NFC 15%, we note an important decrease of these two intensity ratios. This result indicates the contribution of the C‐O stretching of the aryl group in lignin and the absence of this contribution for NR‐CNW is due to the acid hydrolysis treatment which removes the amorphous regions (hemicellulose and lignin) of the fiber leaving intact the crystalline fraction .…”

Section: Resultsmentioning

confidence: 95%

Study of nanocomposites based on cellulose nanoparticles and natural rubber latex by ATR/FTIR spectroscopy: The impact of reinforcement

Agrebi

Ghorbel

Bresson³

et al. 2018

Polymer Composites

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In materials research, polymer nanocomposites have attracted great attention worldwide from both academic and industrial points of view. The material properties of polymers can be enhanced dramatically by incorporating nanoelements from renewable resources depending on their biological origin (e.g., cellulose, starch, and chitin). We have used as the reinforcing phase, in this work, cellulose nanowhiskers (CNWs) and nanofibrillated cellulose (NFC) to prepare nanocomposite films by casting/evaporation using natural rubber (NR) latex as the matrix. Our interest is focused, in this work, especially on the investigation of the chemical bonds of the NR matrix and the chemical links of nanowhiskers added to the matrix and therefore the physical and chemical interactions which could happen between the reinforcement and the matrix. Many techniques have been used to explore the interface. Among these techniques, attenuated total reflectance/Fourier transform infrared spectroscopy (ATR/FTIR), which is employed in this work. It is exhibited that some differences are observed in FTIR spectra of nanocomposite films when adding cellulose nanoparticles into NR matrix. Overall IR spectroscopy clearly demonstrated that the interfacial adhesion in the case of NR‐NFC nanocomposite is higher than that of NR‐CNW one which was explained by the presence of residual lignin at the NFC surface that play the role of “compatibilizing” agent that enhance the adhesion between the NFC and the NR. POLYM. COMPOS., 2018. © 2018 Society of Plastics Engineers

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“…In this context, the concept of “nanopaper” refers to the use of cellulose nanofibers for making paper employing this nanomaterial instead of conventional cellulose. Such nanopapers show interesting mechanical properties, optical transparency, and a smooth surface together with the possibility of combination with another kind of nanoparticles, as well as the incorporation of different functional groups on their surface …”

Section: Introductionmentioning

confidence: 99%

Functional Hybrid Nanopaper by Assembling Nanofibers of Cellulose and Sepiolite

Campo

Darder

Aranda

et al. 2017

Adv Funct Materials

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Functional heterofibrous hybrid materials are prepared in an integrative approach from aqueous dispersions of nanofibrillated cellulose and sepiolite by applying high shear homogenization and ultrasound irradiation. Both types of nanofibers remain physically cross-linked forming homogeneous and very stable high-viscosity gels that can be shaped as films and considered as "hybrid nanopapers" as well. The presence of sepiolite modifies the surface roughness of the films resulting from the casting process, which can be rendered hydrophobic, as the hydrophilic characteristics of both components resulted modulated. In addition, these fibrous hybrid systems can benefit from the properties provided by the two components, such as mechanical behavior, surface properties, and chemical reactivity. Moreover, further assembly of these hybrid nanopapers to other particulate solids, such as carbon nanotubes, magnetite, or ZnO nanoparticles, results in multifunctional hybrid nanopapers, opening a versatile way for developing other numerous organic-inorganic materials of interest in diverse applications.

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Bio-based polyurethane reinforced with cellulose nanofibers: A comprehensive investigation on the effect of interface

Cited by 128 publications

References 51 publications

Cellulose nanocrystals reinforced environmentally-friendly waterborne polyurethane nanocomposites

Cellulose nanocrystals reinforced environmentally-friendly waterborne polyurethane nanocomposites

Study of nanocomposites based on cellulose nanoparticles and natural rubber latex by ATR/FTIR spectroscopy: The impact of reinforcement

Functional Hybrid Nanopaper by Assembling Nanofibers of Cellulose and Sepiolite

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