Development of polylactic acid nanocomposite films reinforced with cellulose nanocrystals derived from coffee silverskin

Sung, Soo-Hyun; Chang, Yoonjee; Han, Jaejoon

doi:10.1016/j.carbpol.2017.04.037

Cited by 177 publications

(141 citation statements)

References 51 publications

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“…A trending approach to replace the fossil‐derived materials is the use of eco‐friendly materials. Biopolymers like polylactides (PLA) have been of increasing interest due to ease of production, the possibility of recycling and composting at the end of life, and commercial acceptance in various areas such as food packaging, biomedical applications, and automobile industry (Gao, Picot, Bilotti, & Peijs, ; Sung, Chang, & Han, ; Tawakkal, Cran, Miltz, & Bigger, ). However, PLA‐based films are brittle/rigid, biologically inactive and possess poor barrier properties (Javidi, Hosseini, & Rezaei, ; Zhu, Tang, Yin, & Yang, ), which limit their applicability for food packaging films.…”

Section: Introductionmentioning

confidence: 99%

Active Chicken Meat Packaging Based on Polylactide Films and Bimetallic Ag–Cu Nanoparticles and Essential Oil

Ahmed

Arfat

Bher

et al. 2018

Journal of Food Science

117

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The nanoparticles and essential oil loaded PLA composite films are capable of exhibiting antimicrobial effects against Gram (+) and (-) bacteria, and extend the shelf-life of chicken meat. The bionanocomposite films showed the potential to be manufactured commercially because of the thermal stability of the active components during the hot-press compression molding process. The developed bionanocomposites could have practical importance and open a new direction for the active food packaging to control the spoilage and the pathogenic bacteria associated with the fresh chicken meat.

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Section: Introductionmentioning

confidence: 99%

Active Chicken Meat Packaging Based on Polylactide Films and Bimetallic Ag–Cu Nanoparticles and Essential Oil

Ahmed

Arfat

Bher

et al. 2018

Journal of Food Science

117

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“…% is increasing–decreasing meaning that the curve has an optimum point. The modulus has increased as SiO 2 introduced to the matrix due to stiff nature of nanofiller , its uniform dispersion into the polymer matrix, and proper interaction between SiO 2 and the S/G matrix. However, this improvement is observable up to about 5 wt.…”

Section: Resultsmentioning

confidence: 99%

Fabrication and characterization of antimicrobial starch‐based nanocomposite films and modeling the process parameters via the RSM

2018

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The main aim of this study is the design and fabrication of degradable nanocomposite films composed of starch/gelatin (S/G)/SiO2 suitable for food packaging applications. Response surface methodology (RSM) was applied to design the fabrication process and to investigate the effect of S/G weight ratio and SiO2 weight percent (wt.%) on the mechanical and barrier properties of the prepared samples. The results revealed that tensile strength and modulus were increased with increasing S/G wt. ratio and introducing SiO2 into the polymer matrix, while elongation at break and water vapor permeability (VWP) decreased. The process optimization was done and various properties of the optimized films such as morphological properties, thermal properties, VWP, degradability, and antibacterial properties were investigated. It was found that the thermal stability of the optimized sample as well as its barrier property against water vapor were improved dramatically as SiO2 presented into the matrix due to proper dispersion and interaction of nanoparticles with the polymer matrix as also confirmed via scanning electron microscopy images. Furthermore, SiO2 has brought significant antibacterial properties for the S/G matrix that is a notable feature for food packaging films. Overall, the results of the current study confirm the S/G/SiO2 compounding could be proper candidate for fabrication of antibacterial degradable food packaging films. POLYM. COMPOS., 39:E584–E591, 2018. © 2018 Society of Plastics Engineers

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“…However, the surface modification of CNC or the use of a coupling agent was found to improve the interaction between CNC and PLA, which improves the stress transfer from the stiffer CNC to the polymer matrix; and this enhances the elongation-at-break and the toughness of the resulting material. The use of low contents of CNC, i.e., 1wt% had no significant influence on the elongation-at-break (or toughness) and the tensile strength of the PLA/CNC composite materials, but in some instances, increased the Young's modulus [70]. It is worth mentioning that there is an optimal concentration of CNCs in PLA to enhance the resulting mechanical properties, beyond which, the converse prevails.…”

Section: Mechanical Propertiesmentioning

confidence: 92%

“…Numerous researchers have investigated the reinforcement ability of cellulose nanomaterials for PLA, as summarized in Table 5 [62]. Among all other factors, the preparation method, filler content, interaction between the filler and matrix, were found to play important effect on the properties of the resulting PLA/CNMs composite materials [70]. Oksman and co-workers In summary, the tensile modulus and tensile strength of CNC/PLA composites increased with increase in the CNC content, however, at the expense of elongation-at-break [70].…”

Section: Mechanical Propertiesmentioning

confidence: 99%

“…Among all other factors, the preparation method, filler content, interaction between the filler and matrix, were found to play important effect on the properties of the resulting PLA/CNMs composite materials [70]. Oksman and co-workers In summary, the tensile modulus and tensile strength of CNC/PLA composites increased with increase in the CNC content, however, at the expense of elongation-at-break [70]. However, the surface modification of CNC or the use of a coupling agent was found to improve the interaction between CNC and PLA, which improves the stress transfer from the stiffer CNC to the polymer matrix; and this enhances the elongation-at-break and the toughness of the resulting material.…”

Section: Mechanical Propertiesmentioning

confidence: 99%

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Processing of Thermoplastic PLA/Cellulose Nanomaterials Composites

Mokhena¹,

Sefadi²,

Sadiku³

et al. 2018

Preprint

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Over the past decades, research has escalated on the use of polylactic acid (PLA) as replacement for petroleum-based polymers. This is due to its valuable properties, such as renewability, biodegradability, biocompatibility and good thermomechanical properties. Despite possessing good mechanical properties comparable to conventional petroleum-based polymers, PLA suffers from some shortcomings such as low thermal resistance, heat distortion temperature and rate of crystallization, thus different fillers have been used to overcome these limitations. In the frame work of environmentally friendly processes and products, there has been growing interest on the use of cellulose nanomaterials viz. cellulose nanocrystals (CNC) and nanofibers (CNF) as natural fillers for PLA towards advanced applications other than short-term packaging and biomedical. Cellulosic nanomaterials are renewable in nature, biodegradable, eco-friendless and they possess high strength and stiffness. In the case of eco-friendly processes, various conventional processing techniques, such as melt extrusion, melt-spinning, and compression moulding, have been used to produce PLA composites. This review addresses the critical factors in the manufacturing of PLA-cellulosic nanomaterials by using conventional techniques and recent advances needed to promote and improve the dispersion of the cellulosic nanomaterials. Different aspects, including morphology, mechanical behavior and thermal properties, as well as comparisons of CNC- and CNF reinforced PLA, are also discussed

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Development of polylactic acid nanocomposite films reinforced with cellulose nanocrystals derived from coffee silverskin

Cited by 177 publications

References 51 publications

Active Chicken Meat Packaging Based on Polylactide Films and Bimetallic Ag–Cu Nanoparticles and Essential Oil

Active Chicken Meat Packaging Based on Polylactide Films and Bimetallic Ag–Cu Nanoparticles and Essential Oil

Fabrication and characterization of antimicrobial starch‐based nanocomposite films and modeling the process parameters via the RSM

Processing of Thermoplastic PLA/Cellulose Nanomaterials Composites

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