Morphology, transport characteristics and viscoelastic polymer chain confinement in nanocomposites based on thermoplastic potato starch and cellulose nanofibers from pineapple leaf

Balakrishnan, Preetha; Sreekala, M. S.; Kunaver, Matjaž; Vesel, Alenka; Thomas, Sabu

doi:10.1016/j.carbpol.2017.04.017

Cited by 147 publications

(82 citation statements)

References 43 publications

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“…The anti-plasticizing effect has already been reported by other authors when evaluating this plasticizer in different combinations and with other types of starch (Gaudin et al, 2000;Chang et al, 2006;Mali et al, 2008;Liu et al, 2013). Balakrishnan et al (2017) evaluated potato starch films with pineapple nanocellulose, from the results, it was assumed that the starch glycerol system exhibits a heterogenous nature and cellulose nanofibers tend to move towards glycerol rich starch phase. Barrier properties also improved with the addition of nanocellulose up to 3 wt% but further addition depreciated properties due to possible fiber agglomeration.…”

Section: Barrier Properties Of Nano-biocompositesmentioning

confidence: 76%

Characterization of cassava starch films plasticized with glycerol and strengthened with nanocellulose from green coconut fibers

Machado¹,

Reis²,

Cruz³

et al. 2017

Afr. J. Biotechnol.

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The aim of this study was to obtain and characterize biodegradable films of cassava starch plasticized with glycerol and reinforced with nanocellulose from coconut fibers. The mechanical and physicalchemical properties of the nano-biocomposites films obtained were evaluated. The method used to investigate the viability of incorporating coconut nanocellulose in films was applied through a statistical design of the response surface of 17 formulations containing three independent variables (starch, glycerol and nanocellulose). The films were prepared through casting technique, and the effect of different concentrations of the ingredients in each formulation was investigated by monitoring the dependent variables. The green coconut fiber was composed of 32% cellulose, 38% lignin and 0.25% hemicellulose resulted in nanocellulose with a length (L)/diameter(D) value of 38.9±4.7 after the acid hydrolysis process (64% H 2 SO 4 ; 50°C; 10-15 min). The incorporation of nanocellulose resulted in significant changes (p<0.05) in the barrier and mechanical properties. Additionally, there was a significant increase in the Young's modulus and in the tensile of the nano-biocomposites. Consequently, there was a decrease in the percentage of elongation. Thus, films formulated from cassava starch plasticized with glycerol could have significantly altered mechanical, technical and barrier properties due to the incorporation of coconut nanocellulose.

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Section: Barrier Properties Of Nano-biocompositesmentioning

confidence: 76%

Characterization of cassava starch films plasticized with glycerol and strengthened with nanocellulose from green coconut fibers

Machado¹,

Reis²,

Cruz³

et al. 2017

Afr. J. Biotechnol.

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“…For example, nanocelluloses could be used in functional coatings, barrier coatings, strength additives, films, emulsions, foams, optical devices, adhesives, composites, biomedical engineering materials, cement, packaging, fillers, nonwoven materials, textiles, and separation membranes. [3][4][5][6][7][8][9][10][11] Two types of nanocellulose [12] can be derived from the cellulose in wood: nanofibrillated cellulose (NFC) and nanocrystalline cellulose (NCC). NFC is spaghetti-like in structure, long and flexible, composed of fibers less than 100 nm in width and several micro meter in length, containing both crystalline and amorphous regions.…”

Section: Doi: 101002/gch2201700045mentioning

confidence: 99%

“…The partial depolymerization of cellulosic materials can lead to the fabrication of nanocellulose. [3][4][5][6][7][8][9][10][11] There is significant research activity on future applications of this cellulose-derived nanomaterial by the use of an active radical initiator and a nonselective chlorinebased oxidant is a disadvantage in large-scale production.…”

Section: Nanocellulosesmentioning

confidence: 99%

Sustainable Design for the Direct Fabrication and Highly Versatile Functionalization of Nanocelluloses

et al. 2017

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This study describes a novel sustainable concept for the scalable direct fabrication and functionalization of nanocellulose from wood pulp with reduced energy consumption. A central concept is the use of metal‐free small organic molecules as mediators and catalysts for the production and subsequent versatile surface engineering of the cellulosic nanomaterials via organocatalysis and click chemistry. Here, “organoclick” chemistry enables the selective functionalization of nanocelluloses with different organic molecules as well as the binding of palladium ions or nanoparticles. The nanocellulosic material is also shown to function as a sustainable support for heterogeneous catalysis in modern organic synthesis (e.g., Suzuki cross‐coupling transformations in water). The reported strategy not only addresses obstacles and challenges for the future utilization of nanocellulose (e.g., low moisture resistance, the need for green chemistry, and energy‐intensive production) but also enables new applications for nanocellulosic materials in different areas.

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“…Biopolymers, such as cellulose, chitin, silk, starch, and bacterial‐derived polysaccharides, have attracted intense attention in recent decades due to their extensive availability, sustainability as well as biocompatibility and biodegradability . In particular, directly utilizing these natural nanobiopolymers as starting materials to create novel structural and functional materials will be an optimal choice.…”

Section: Introductionmentioning

confidence: 99%

Nanobiopolymers Fabrication and Their Life Cycle Assessments

Yang

Zhang

et al. 2018

Biotechnology Journal

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Living organisms produced nanopolymers (nanobiopolymers for short), such as nanocellulose, nanochitin, nanosilk, nanostarch, and microbial nanobiopolymers, having received widely scientific and engineering interests in recent years. Compare with petroleum-based polymers, biopolymers are sustainable and biodegradable. The unique structural features that stem from nanosized effects, such as ultrahigh aspect ratio and length-diameter ratio, further endow nanobiopolymers with high transparence and versatile processability. To fabricate these nanobiopolymers, a variety of mechanical, chemical, and synthetic biology techniques have been developed. The applications of the isolated nanobiopolymers have been extended from polymer fillers into wide emerging high-tech fields, such as biomedical devices, bioplastics, display panels, ultrafiltration membranes, energy storage devices, and catalytic supports. Accordingly, in the review, the authors first introduce isolation techniques to fabricate nanocellulose, nanochitin, nanosilk, and nanostarch. Then, the authors summarized the nanobiopolymers produced from biosynthetic pathway, including microbial polyamides, polysaccharides, and polyesters. On the other hand, most of these techniques require high energy consumption and usage of chemical reagents. In this regard, life cycle assessment offered a quantitative route to precisely evaluate and compare environmental benefits of different artificial isolation approaches, which are also summarized in the second section of the review.

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Morphology, transport characteristics and viscoelastic polymer chain confinement in nanocomposites based on thermoplastic potato starch and cellulose nanofibers from pineapple leaf

Cited by 147 publications

References 43 publications

Characterization of cassava starch films plasticized with glycerol and strengthened with nanocellulose from green coconut fibers

Characterization of cassava starch films plasticized with glycerol and strengthened with nanocellulose from green coconut fibers

Sustainable Design for the Direct Fabrication and Highly Versatile Functionalization of Nanocelluloses

Nanobiopolymers Fabrication and Their Life Cycle Assessments

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