Synergistic reinforcing effect of TiO 2 and montmorillonite on potato starch nanocomposite films: Thermal, mechanical and barrier properties

In this study, a facile, ecofriendly nanocomposite based on glycerol-plasticized thermoplastic potato starch (TPS) containing 0-4 wt.% cellulose nanofiber (CNF) from pineapple leaf was prepared by the solution casting technique. The nanocomposite films showed better mechanical properties compared to neat film. The tensile properties were fit with theoretical predictions. Tensile strength increased with CNF loading and reached up to 4.682 MPa (TPS+3 wt.% CNF) from 1.58 MPa (neat TPS), an improvement of ~196% over the neat polymer. The addition of cellulose nanofiber improved the barrier properties of films by creating a tortuous path for penetrant molecules. Gas transport behavior of CNF-based TPS nanocomposite films was explored using O2 gas. A 56% decrease (relative to neat TPS) in oxygen permeability of the nanocomposite membranes was achieved by adding only 3 wt.% CNF. The oxygen permeability data were fit with two theoretical models

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Physicochemical properties of starch nanocomposite films enhanced by self-assembled potato starch nanoparticles

LWT ◽

10.1016/j.lwt.2016.01.053 ◽

2016 ◽

Vol 69 ◽

pp. 251-257 ◽

Cited By ~ 47

Author(s):

Suisui Jiang ◽

Chengzhen Liu ◽

Xiaojin Wang ◽

Liu Xiong ◽

Qingjie Sun

Keyword(s):

Physicochemical Properties ◽

Potato Starch ◽

Nanocomposite Films ◽

Starch Nanoparticles ◽

Self Assembled

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Bioplastic films with unusually good oxygen barrier properties based on potato fruit-juice

RSC Advances ◽

10.1039/d1ra01178b ◽

2021 ◽

Vol 11 (21) ◽

pp. 12543-12548

Author(s):

Simi Poulose ◽

Ilari Jönkkäri ◽

Mikael S. Hedenqvist ◽

Jurkka Kuusipalo

Keyword(s):

Waste Management ◽

Industrial Waste ◽

Fruit Juice ◽

Potato Starch ◽

Barrier Properties ◽

Oxygen Barrier ◽

Industrial Waste Management ◽

Starch Industry

Valorization of potato fruit juice, a potato starch industry by-product, by developing biopolymer films that could replace petroleum based alternatives in packaging, providing a greener and sustainable solution to industrial waste management.

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Modern Biodegradable Plastics—Processing and Properties Part II

Materials ◽

10.3390/ma14102523 ◽

2021 ◽

Vol 14 (10) ◽

pp. 2523

Author(s):

Janusz W. Sikora ◽

Łukasz Majewski ◽

Andrzej Puszka

Keyword(s):

Water Vapor ◽

Rotational Speed ◽

Corn Starch ◽

Potato Starch ◽

Reference Sample ◽

Film Surface ◽

Barrier Properties ◽

Processing Parameters ◽

Biodegradable Plastics ◽

Film Blowing

Four different plastics were tested: potato starch based plastic (TPS-P)–BIOPLAST GF 106/02; corn starch based plastic (TPS-C)–BioComp BF 01HP; polylactic acid (polylactide) plastic (PLA)—BioComp BF 7210 and low density polyethylene, trade name Malen E FABS 23-D022; as a petrochemical reference sample. Using the blown film extrusion method and various screw rotational speeds, films were obtained and tested, as a result of which the following were determined: breaking stress, strain at break, static and dynamic friction coefficient of film in longitudinal and transverse direction, puncture resistance and strain at break, color, brightness and gloss of film, surface roughness, barrier properties and microstructure. The biodegradable plastics tested are characterized by comparable or even better mechanical strength than petrochemical polyethylene for the range of film blowing processing parameters used here. The effect of the screw rotational speed on the mechanical characteristics of the films obtained was also demonstrated. With the increase in the screw rotational speed, the decrease of barrier properties was also observed. No correlation between roughness and permeability of gases and water vapor was shown. It was indicated that biodegradable plastics might be competitive for conventional petrochemical materials used in film blowing niche applications where cost, recyclability, optical and water vapor barrier properties are not critical.

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Improved mechanical and barrier properties of low-density polyethylene nanocomposite films by incorporating hydrophobic graphene oxide nanosheets

RSC Advances ◽

10.1039/c5ra12694k ◽

2015 ◽

Vol 5 (98) ◽

pp. 80739-80748 ◽

Cited By ~ 17

Author(s):

Hua-Dong Huang ◽

Sheng-Yang Zhou ◽

Peng-Gang Ren ◽

Xu Ji ◽

Zhong-Ming Li

Keyword(s):

Graphene Oxide ◽

Barrier Properties ◽

Nanocomposite Films ◽

Low Density Polyethylene ◽

Packaging Materials ◽

Low Density ◽

Graphene Oxide Nanosheets

The successful conversion from hydrophilic GONSs to hydrophobic ODA–GONSs imparts LDPE nanocomposite films with enhanced mechanical and barrier performances for potential packaging materials.

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Cellulose nanocrystals/poly(methyl methacrylate) nanocomposite films: Effect of preparation method and loading on the optical, thermal, mechanical, and gas barrier properties

Polymer Composites ◽

10.1002/pc.23875 ◽

2015 ◽

Vol 38 ◽

pp. E137-E146 ◽

Cited By ~ 8

Author(s):

Fei Deng ◽

Mei-Chun Li ◽

Xin Ge ◽

Yinhang Zhang ◽

Ur Ryong Cho

Keyword(s):

Methyl Methacrylate ◽

Cellulose Nanocrystals ◽

Preparation Method ◽

Barrier Properties ◽

Nanocomposite Films ◽

Gas Barrier ◽

Poly Methyl Methacrylate ◽

Gas Barrier Properties

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Release of Graphene and Carbon Nanotubes from Biodegradable Poly(Lactic Acid) Films during Degradation and Combustion: Risk Associated with the End-of-Life of Nanocomposite Food Packaging Materials

Materials ◽

10.3390/ma11122346 ◽

2018 ◽

Vol 11 (12) ◽

pp. 2346 ◽

Cited By ~ 6

Author(s):

Stanislav Kotsilkov ◽

Evgeni Ivanov ◽

Nikolay Vitanov

Keyword(s):

Risk Assessment ◽

Carbon Nanotubes ◽

Lactic Acid ◽

Food Packaging ◽

Safety Concern ◽

Barrier Properties ◽

Nanocomposite Films ◽

Poly Lactic Acid ◽

Qualitative Risk Assessment ◽

The Matrix

Nanoparticles of graphene and carbon nanotubes are attractive materials for the improvement of mechanical and barrier properties and for the functionality of biodegradable polymers for packaging applications. However, the increase of the manufacture and consumption increases the probability of exposure of humans and the environment to such nanomaterials; this brings up questions about the risks of nanomaterials, since they can be toxic. For a risk assessment, it is crucial to know whether airborne nanoparticles of graphene and carbon nanotubes can be released from nanocomposites into the environment at their end-life, or whether they remain embedded in the matrix. In this work, the release of graphene and carbon nanotubes from the poly(lactic) acid nanocomposite films were studied for the scenarios of: (i) biodegradation of the matrix polymer at the disposal of wastes; and (ii) combustion and fire of nanocomposite wastes. Thermogravimetric analysis in air atmosphere, transmission electron microscopy (TEM), atomic force microscopy (AFM) and scanning electron microscope (SEM) were used to verify the release of nanoparticles from nanocomposite films. The three factors model was applied for the quantitative and qualitative risk assessment of the release of graphene and carbon nanotubes from nanocomposite wastes for these scenarios. Safety concern is discussed in respect to the existing regulations for nanowaste stream.

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Cellulose Nanocrystal Reinforced Chitosan Based UV Barrier Composite Films for Sustainable Packaging

Polymers ◽

10.3390/polym12010202 ◽

2020 ◽

Vol 12 (1) ◽

pp. 202 ◽

Cited By ~ 6

Author(s):

Mithilesh Yadav ◽

Kartik Behera ◽

Yen-Hsiang Chang ◽

Fang-Chyou Chiu

Keyword(s):

Food Industry ◽

Water Solubility ◽

Moisture Absorption ◽

Composite Films ◽

Barrier Properties ◽

Cellulose Nanocrystal ◽

Nanocomposite Films ◽

Green Composite ◽

Vapor Permeation ◽

Sustainable Packaging

In this study, green composite films based on cellulose nanocrystal/chitosan (CNC/CS) were fabricated by solution casting. FTIR, XRD, SEM, and TEM characterizations were conducted to determine the structure and morphology of the prepared films. The addition of only 4 wt.% CNC in the CS film improved the tensile strength and Young’s modulus by up to 39% and 78%, respectively. Depending on CNC content, the moisture absorption decreased by 34.1–24.2% and the water solubility decreased by 35.7–26.5% for the composite films compared with neat CS film. The water vapor permeation decreased from 3.83 × 10−11 to 2.41 × 10−11 gm−1 s−1Pa−1 in the CS-based films loaded with (0–8 wt.%) CNC. The water and UV barrier properties of the composite films showed better performance than those of neat CS film. Results suggested that CNC/CS nanocomposite films can be used as a sustainable packaging material in the food industry.

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