Multifunctional bionanocomposite films of poly(lactic acid), cellulose nanocrystals and silver nanoparticles

Fortunati, Elena; Armentano, Ilaria; Zhou, Qi; Iannoni, A.; Saino, Enrica; Visai, Livia; Berglund, Lars A.; Kenny, J. M.

doi:10.1016/j.carbpol.2011.09.066

Cited by 550 publications

(328 citation statements)

References 38 publications

Supporting

Mentioning

290

Contrasting

Unclassified

Order By: Relevance

“…7. Concept of a coating material that serves to "plug" locations in a nanocellulose film that may be defective or may offer higher gas permeability due to their amorphous nature Fortunati et al (2012aFortunati et al ( ,b, 2013Fortunati et al ( , 2015 obtained promising results for surfactantmodification of CNC. The surfactant employed was an acid phosphate ester of ethoxylated nonylphenol.…”

Section: Additives and Coatings Vs O2 Barrier Performancementioning

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

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...

show abstract

Section: Additives and Coatings Vs O2 Barrier Performancementioning

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

“…2a). These results are supported by Fortunati et al (2012b), who studied the preparation of the PLA/cellulose composites using cellulose nanocrystal (CNC) isolated from MCC by sulphuric acid hydrolysis. At a molecular level, duringdrying, the OPEFB-NCC lost the free and bound water, which caused the crystals to come into very close contact, resulting in the formation of hydrogen bonds and, consequently, particle agglomeration.…”

Section: Morphological Analysis Of Pla-opefb Ncc Bionanocompositementioning

confidence: 71%

Polylactic Acid Bionanocomposites Filled with Nanocrystalline Cellulose from TEMPO-Oxidized Oil Palm Lignocellulosic Biomass

Indarti

Rohaizu

Husin

et al. 2016

BioRes

View full text Add to dashboard Cite

Bionanocomposites from polylactic acid (PLA) filled with unmodified nanocrystalline cellulose from TEMPO-oxidized oil palm empty fruit bunch (OPEFB-NCC) at various loading levels were fabricated using the solvent casting technique. Scanning electron microscopy (SEM), transmission electron microscopy (TEM), attenuated total reflectance Fourier transform infrared spectroscopy (ATF-FTIR), differential scanning calorimetry (DSC), and mechanical analyses were used to characterize the bionanocomposite films. FTIR suggested that the incorporation of the OPEFB-NCC was based on physical interaction. The melting temperature did not change markedly except at higher OPEFB-NCC additions, while the crystallization temperature shifted to lower temperatures and crystallinity increased with increasing OPEFB-NCC content.The SEM of cryo-fractured films indicated a rather weak compatibility between the OPEFB-NCC and PLA, resulting in the decrease of both the modulus and the tensile strength of the bionanocomposite.

show abstract

“…Firstly, the observed changes could result from the plasticizing effect of acetyl moieties which were located on the surface of modified MFC. For example, the literature reported plasticizing of PLA by surfactant adsorbed on cellulose nanocrystals (Fortunati et al 2012a), cellulose nanowhiskers grafted by n-octadecyl-isocyanate (Espino-Pérez et al 2013) and lactide oligomers attached to cellulose nanowhiskers (Goffin et al 2011). The effect of increased storage modulus and decreased glass transition temperature was found, for example, for PLA/nanocrystalline cellulose nanocomposites by Fortunati et al (2012b).…”

Section: Dynamic Mechanical Analysis Of Pa410/mfc-ac Compositesmentioning

confidence: 99%

Biocomposites of polyamide 4.10 and surface modified microfibrillated cellulose (MFC): influence of processing parameters on structure and thermomechanical properties

2015

View full text Add to dashboard Cite

Novel bio-polyamides obtained from renewable resources, e.g. PA4.10, are considered nowadays as promising 'green' engineering materials consisting of building blocks derived from castor oil. In this work the composites of heterogeneously acetylated microfibrillated cellulose (MFC) and biopolyamide 4.10 have been prepared by melt blending. Thermoplastic processing of PA4.10/MFC composites was possible in a narrow temperature window due to significant improvement of thermal stability of acetylated MFC as compared to raw MFC. The increase of thermooxidative stability of filler was due to removal of non-cellulosic components from the raw material and introduction of acetic moieties that had additional slight stabilizing effect on MFC. Moreover, the modified MFC showed significant changes in morphology that favoured its dispersibility in viscous polymer melt. Combined treatment of MFC by chemical agents, which caused partial hydrolysis of amorphous regions, and physical disintegration by ultrasonic waves resulted in formation of fibrous material with low degree of entanglement and submicron or nanometric diameters. In the tested range of screw speeds it was found that at screw speed of 100 rpm the shearing forces were sufficient for dispersing MFC agglomerates and the melt pressure secured evacuation of gases introduced to plasticizing system of extruder with MFC-Ac aerogel. The dynamic mechanical properties of obtained (nano)-composites were influenced by both mechanical strengthening of rigid cellulose micro and nanofibers as well as susceptibility of biopolymers towards oxidation and thermomechanical degradation during processing.

show abstract

Multifunctional bionanocomposite films of poly(lactic acid), cellulose nanocrystals and silver nanoparticles

Cited by 550 publications

References 38 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

Polylactic Acid Bionanocomposites Filled with Nanocrystalline Cellulose from TEMPO-Oxidized Oil Palm Lignocellulosic Biomass

Biocomposites of polyamide 4.10 and surface modified microfibrillated cellulose (MFC): influence of processing parameters on structure and thermomechanical properties

Contact Info

Product

Resources

About