Solvent impact on esterification and film formation ability of nanofibrillated cellulose

Vuoti, Sauli; Talja, Riku; Johansson, Leena‐Sisko; Heikkinen, Hanna; Tammelin, Tekla

doi:10.1007/s10570-013-9983-6

Cited by 38 publications

(22 citation statements)

References 40 publications

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“…The cross-linking procedure consists on the functional modification of the NC without its disintegration (de Cuadro et al 2015). Different chemicals, such as toluenesulfonic acid, hexanoic acid (Matsumura et al 2000), butyryl, benzoyl, naphtoyl, diphenyl acetatyl, and stearoyl (Vuoti et al 2013) have been used to carry out this chemical crosslinking. However, poly(carboxylic acid)s, such as citric acid (de Cuadro et al 2015;Quellmalz and Mihranyan 2015) or succinic acid (Zhou et al1995), have become very popular because of their environmentally friendly and non-toxic nature.…”

Section: Introductionmentioning

confidence: 99%

Barrier and mechanical properties of plasticized and cross-linked nanocellulose coatings for paper packaging applications

2017

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Barrier, mechanical and thermal properties of porous paper substrates dip-coated with nanocellulose (NC) were studied. Sorbitol plasticizer was used to improve the toughness, and citric acid crosslinker to improve the moisture stability of the coatings. In general, the addition of sorbitol increased the barrier properties, maximum strength and toughness as well as the thermal stability of the samples when compared to the non-modified NC coatings. The barrier properties significantly improved, especially for plasticized NC coating's, where the oxygen permeability value was as low as 0.7 mL lm day -1 m -2 kPa -1 at 49% RH and the water vapor permeability was reduced by 60%. Furthermore, we found that the cross-linked plasticized NC coating had a smoother surface (50% lower roughness) compared to non-modified ones. This study shows that the environmentally friendly additives sorbitol and citric acid had positive effects on NC coating properties, increasing its potential use in paperbased packaging applications.

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Section: Introductionmentioning

confidence: 99%

Barrier and mechanical properties of plasticized and cross-linked nanocellulose coatings for paper packaging applications

2017

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“…A similar trend has been experienced and studied in detail in our previous publication. 51 In contrast to solution state 13 C NMR, solid state 13 C CP/MAS NMR is generally not fully accepted to be a quantitative method. This comes as no surprise, since the CP method per se emphasizes 13 C close to 1 H. Moreover, the dynamics of the CP method also depends on the orientation of heteronuclear dipolar tensors, Hartmann-Hahn match conditions (mismatch, relaxation effects), molecular motion and MAS rate.…”

Section: Resultsmentioning

confidence: 99%

“…This observation is similar to that of our previous results. 51 The OP increased remarkably when acetone was used instead of THF as a solvent in the film formation for both CNF derivatives. Acetone is used as a common solvent in commercial paints.…”

Section: Articlementioning

confidence: 98%

Chemically modified cellulose nanofibril as an additive for two‐component polyurethane coatings

Virtanen¹,

Jämsä²,

Talja³

et al. 2018

J of Applied Polymer Sci

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“…The nanofibrils are generally produced from fibers (wood, plant, agricultural wastes, pulp) microcrystalline cellulose (MCC), and microfibrillated cellulose (MFC) using mechanical or chemical procedures (9,14). Nanofibrils are considered as structures with diameters in the order of tens of nanometers, and have unique structural aspects that are different from micro or macrofibrillar cellulose (15,16). NFC is believed by some researchers to be composed of a distribution of crystallites in an amorphous matrix (17).…”

Section: Cellulose Nanoparticlesmentioning

confidence: 99%

Cellulose Nanocomposites

Feldman

2015

Journal of Macromolecular Science, Part A

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Cellulose is a linear polysaccharide and one of the world's most abundant biopolymers. It is one of the renewable biopolymers being studied to reduce the dependence on non-renewable mineral oil based products. Cellulose can be used in different kinds of composites, including the recent nanocomposites.The production of nanoscale cellulose fibers and their use in polymer composites gained increasing attention due to their interesting properties and potential applications. This review paper is trying to cover studies done to use various forms of cellulose as reinforcement for different polymers, as matrix, as reinforcement and matrix for the same nanocomposite and as a component in polyblend nanocomposites beside other polymers.

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Solvent impact on esterification and film formation ability of nanofibrillated cellulose

Cited by 38 publications

References 40 publications

Barrier and mechanical properties of plasticized and cross-linked nanocellulose coatings for paper packaging applications

Barrier and mechanical properties of plasticized and cross-linked nanocellulose coatings for paper packaging applications

Chemically modified cellulose nanofibril as an additive for two‐component polyurethane coatings

Cellulose Nanocomposites

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