Production and characterization of microfibrillated cellulose‐reinforced thermoplastic starch composites

Lendvai, László; Karger‐Kocsis, J.; Kmetty, Ákos; Drakopoulos, Stavros X.

doi:10.1002/app.42397

Cited by 60 publications

(45 citation statements)

References 39 publications

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“…Melt processing has been employed in numerous research projects in which nanocellulose was used as a minor component to reinforce a thermoplastic resin (Seydibeyoglu and Oksman 2008;Martínez-Sanz et al 2012, 2013aSuzuki et al 2013Suzuki et al , 2014Fortunati et al 2014;Ambrosio-Martin et al 2015a;Arrieta et al 2015;Ferrer et al 2016a;Herrera et al 2016;Lendvai et al 2016). After emerging from the die of the extruder, the material cools below the melting point of the matrix polymer.…”

Section: Melt Extrusionmentioning

confidence: 99%

“…Relatively low-melting polymers are often preferred in order to avoid thermal damage to the cellulosic reinforcement during compounding. Alternatively, researchers who want to utilize nature-based products have selected poly-(lactic acid) (Martínez-Sanz et al 2012) or thermoplastic starch mixtures (Lendvai et al 2016) as the matrix. Herrera et al (2016) showed that the results were strongly affected by the rate of cooling in the case of poly-lactic acid film reinforced with CNC.…”

Section: Melt Extrusionmentioning

confidence: 99%

See 1 more Smart Citation

Nanocellulose in Thin Films, Coatings, and Plies for Packaging Applications: A Review

Hubbe

Ferrer

Tyagi

et al. 2017

BioRes

244

234

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This review article was prompted by a remarkable growth in the number of scientific publications dealing with the use of nanocellulose (especially nanofibrillated cellulose (NFC), cellulose nanocrystals (CNC), and bacterial cellulose (BC)) to enhance the barrier properties and other performance attributes of new generations of packaging products. Recent research has confirmed and extended what is known about oxygen barrier and water vapor transmission performance, strength properties, and the susceptibility of nanocellulose-based films and coatings to the presence of humidity or moisture. Recent research also points to various promising strategies to prepare ecologically-friendly packaging materials, taking advantage of nanocellulose-based layers, to compete in an arena that has long been dominated by synthetic plastics. Some promising approaches entail usage of multiple layers of different materials or additives such as waxes, high-aspect ratio nano-clays, and surface-active compounds in addition to the nanocellulose material.While various high-end applications may be achieved by chemical derivatization or grafting of the nanocellulose, the current trends in research suggest that high-volume implementation will likely incorporate water-based formulations, which may include water-based dispersions or emulsions, depending on the enduses. Resources; North Carolina State University, Raleigh, NC 27695, USA; b: Nalco Champion, an Ecolab Company, 7705 Highway 90-A, Sugar Land, TX 77478, USA; c: School of Clothing and Textiles, Jiangnan University, Wuxi, Jiangsu, China; d: Department of Bioproducts and Biosystems, School of Chemical Engineering, Aalto University, PO Box 16300, FI-00076 Aalto, Finland; * Corresponding author: hubbe@ncsu Table B -Barrier properties of NFC films 2144 2145 2145 2149 2151 2152 2153 2155 2155 2157 2157 2158 2158 2159 2159 2166 2170 2172 2173 2174 2175 2177 2179 2208 2208 2228 REVIEW ARTICLE bioresources.com . "Nanocellulose in packaging," BioResources 12(1), 2143-2233. 2144 Keywords: Barrier properties; Water vapor transmission; Food shelf life; Oxygen transmission; Packages; Cellulose nanomaterials Contact information: a: Department of Forest Biomaterials, College of Natural INTRODUCTIONThere has been explosive growth in the publication of peer-reviewed articles that combine key words related to "packaging" and "cellulose," in combination with the terms "nanocellulose," "nanocrystal*," or "nanofibril*". As of November 2016, a search of this combination of terms showed about as many publications since the start of 2015, compared to all preceding years combined. Given such an acceleration of research around the world, it makes sense to ask whether this high amount of research effort has yet borne significant fruit. In light of this question, the emphasis of this review article is on research publications that shed light on known challenges to the successful implementation of nanocellulose products to enhance the performance of packaging.In principle, a nano...

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Section: Melt Extrusionmentioning

confidence: 99%

Section: Melt Extrusionmentioning

confidence: 99%

Nanocellulose in Thin Films, Coatings, and Plies for Packaging Applications: A Review

Hubbe

Ferrer

Tyagi

et al. 2017

BioRes

244

234

View full text Add to dashboard Cite

show abstract

“…On other hand, in last decades, different kinds of additives such as antioxidants, antimicrobials, nutrients, or flavors were incorporated in starch films to give them greater benefices . This, either to transfer their properties to the food they cover or to enrich the consumer if they want to eat the film.…”

Section: Introductionmentioning

confidence: 99%

Biodegradable and Edible Starch Composites with Fiber‐Rich Lentil Flour to Use as Food Packaging

et al. 2018

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Following the new eco‐friendly technologies for food packaging, biodegradable composites with edible components as starch, glycerol, and lentil flour rich in fiber (0, 0.5 wt.% and 1.0 wt.%) are developed. The lentil flour, obtained from the residue of a commercial lentil protein extraction process, have micrometer size and, unlike typical lentil flour, have three times higher concentration of fiber. Its use leads to increments in the storage modulus, strength at break, and toughness of the composites, and to decreases in water vapor permeability, with respect to the matrix, showing that the additive can act as reinforcement for starch films. Composites with 0.5 wt.% of flour result in more flexibility due to their homogeneous dispersion in the matrix. All films are thermally stable up to 240 °C and biodegradable in vegetal compost after 4 weeks. These new composites are high promising for use as biodegradable and edible food coatings. They could enrich food nutritional value by the fiber‐rich flour addition.

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“…Most of them study the influence of fiber type and amount usually by determining properties at one or two fiber contents. All kinds of fibers have been used as filler in TPS including various forms of cellulose [6,[12][13][14][15][16][17][18][19][20][21][22][23][24], jute [18,[25][26][27], sisal [28][29][30][31][32][33], wheat straw [13], flax [23,34] hemp [13,28,35,36], cotton [13,37,38], flax [19,39], ramie [20,40].…”

Section: Introductionmentioning

confidence: 99%

Thermoplastic Starch/Wood Composites: Effect of Processing Technology, Interfacial Interactions and Particle Characteristics

Fekete

Kun

Móczó

2017

Period. Polytech. Chem. Eng.

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IntroductionRecently a growing interest has been shown in the application of biopolymers as packaging materials in order to reduce the environmental pollution caused by plastic waste and to achieve sustainable development. Starch is considered as one of the most promising biopolymers because it is readily available, cheap and biodegradable. Starch is a semicrystalline polymer and it represents the major form of stored carbohydrates in plants. Starch is a mixture of two substances composed of α-D glucopyranosyl repeating units, an essentially linear polysaccharide-amylose and a highly branched polysaccharideamylopectin. One of the major problems with granular starch is its limited processability, which can be improved by the use of plasticizers. Thermoplastic starch can be obtained by the destruction of the starch granules in the presence of plasticizers under specific conditions. Polyols such as glycerol, glycols as well as water are the most widely used plasticizers [1][2][3]. The main disadvantages of TPS are its pronounced hydrophilic character and inadequate mechanical properties. The inferior properties of TPS can be improved by the incorporation of other materials (natural fibers, nanoclays, or other biodegradable polymers) [1,2,[4][5][6][7][8][9][10][11].A considerable number of papers deal with the effect of natural fibers on the properties of thermoplastic starch. Most of them study the influence of fiber type and amount usually by determining properties at one or two fiber contents. All kinds of fibers have been used as filler in TPS including various forms of cellulose [6,[12][13][14][15][16][17][18][19][20][21][22][23][24], jute [18,[25][26][27], sisal [28][29][30][31][32][33], wheat straw [13], flax [23,34] hemp [13,28,35,36], cotton [13,37,38], flax [19,39], ramie [20,40].According to the existing literature a relatively small number of papers have been published which consider the practical relevance of TPS/wood composites [7,[41][42][43][44][45][46]. There are even fewer paper about systematic experiments carried out as a function of fiber content in a wide composition range [2,41,42], furthermore, it is very difficult to find publications on the effect of processing methods on the properties of TPS/wood composites. In our earlier work we investigated different TPS/wood composites prepared by injection molding [47].

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Production and characterization of microfibrillated cellulose‐reinforced thermoplastic starch composites

Cited by 60 publications

References 39 publications

Nanocellulose in Thin Films, Coatings, and Plies for Packaging Applications: A Review

Nanocellulose in Thin Films, Coatings, and Plies for Packaging Applications: A Review

Biodegradable and Edible Starch Composites with Fiber‐Rich Lentil Flour to Use as Food Packaging

Thermoplastic Starch/Wood Composites: Effect of Processing Technology, Interfacial Interactions and Particle Characteristics

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