Improvement Approach for Gas Barrier Behavior of Polymer/Clay Nanocomposite Films

MRS Advances ◽  
2017 ◽  
Vol 2 (57) ◽  
pp. 3547-3552 ◽  
Author(s):  
Maedeh Dabbaghianamiri ◽  
Sayantan Das ◽  
Gary W. Beall
Keyword(s):  
Polymer Nanocomposites ◽  
Food Packaging ◽  
Barrier Properties ◽  
Nanocomposite Films ◽  
Layer By Layer ◽  
Gas Barrier ◽  
Barrier Films ◽  
High Particle ◽  
Polymer Clay Nanocomposite ◽  
Self Assembled

ABSTRACTPolymer nanocomposites (PNC) include a copolymer or polymer which has nanoparticles dispersed in the polymer matrix at the nano-level. One of the most common types of polymer nanocomposites contain smectic clays as the nanoparticles. These clay minerals increase the mechanical properties of standard polymers and improve barrier properties. For optimum barrier properties, Layer-by-Layer assembly (LbL) is one of the most effective methods for depositing thin films. LbL methods however, are quite tedious and produce large quantities of waste. A newly discovered phenomenon of self-assembled polymer nanocomposites utilizes entropic forces to drive the assembly to spontaneously form a larger nanostructured film. This approach allows polymers and nanoparticles with high particle loadings to be mixed, and create the super gas barrier films. We have developed a coating technique which can be employed to make self-assembled gas barrier films via inkjet printing. This technique is industrially scalable and efficient. This is because it does not need any rinsing step and drying steps as required in LbL. The influence of different polymers Polyvinylpyrrolidone (PVP) and Poly (acrylic acid) PAA with Montmorillonite (MMT) nanoclay solutions on Polyethylene terephthalate (PET) substrate is examined to study their effectiveness as a gas barrier film. The results showing the excellent oxygen barrier behavior of a combination of PVP and MMT Nano clay nanocomposite with high transparency. These high barrier gas nanocomposite films are good candidates for a variety of food packaging applications.

scholarly journals Manufacturing of Food Packaging Based on Nanocellulose: Current Advances and Challenges

Nanomaterials ◽  
2020 ◽  
Vol 10 (9) ◽  
pp. 1726
Author(s):  
Ghislain Fotie ◽  
Sara Limbo ◽  
Luciano Piergiovanni
Keyword(s):  
High Performance ◽  
Food Packaging ◽  
Coating Layer ◽  
Scale Up ◽  
Barrier Properties ◽  
Synthetic Polymers ◽  
Layer By Layer ◽  
Gas Barrier ◽  
Industrial Manufacturing ◽  
Made In

Nowadays, environmental pollution due to synthetic polymers represents one of the biggest worldwide challenges. As demonstrated in numerous scientific articles, plant-based nanocellulose (NC) is a biodegradable and nontoxic material whose mechanical, rheological, and gas barrier properties are competitive compared to those of oil-based plastics. However, the sensitivity of NC in humid ambient and lack of thermosealability have proven to be a major obstacle that hinders its breakthrough in various sectors including food packaging. In recent years, attempts have been made in order to provide a hydrophobic character to NC through chemical modifications. In addition, extensive works on nanocellulose applications in food packaging such as coating, layer-by-layer, casting, and electrospinning have been reported. Despite these enormous advances, it can easily be observed that packaging manufacturers have not yet shown a particular interest in terms of applicability and processability of the nanocellulose due to the lack of guidelines and guarantee on the success of their implementation. This review is useful for researchers and packaging manufacturers because it puts emphasis on recent works that have dealt with the nanocellulose applications and focuses on the best strategies to be adopted for swift and sustainable industrial manufacturing scale-up of high-performance bio-based/compostable packaging in replacement of the oil-based counterparts used today.

Layer-by-layer assembled multilayers of charged polyurethane and graphene oxide platelets for flexible and stretchable gas barrier films

Soft Matter ◽  
2018 ◽  
Vol 14 (32) ◽  
pp. 6708-6715 ◽  
Author(s):  
Min Ji Noh ◽  
Min Jun Oh ◽  
Jae Ho Choi ◽  
Jae Chul Yu ◽  
Woo-Jae Kim ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Barrier Property ◽  
Layer By Layer ◽  
Gas Barrier ◽  
Barrier Films ◽  
Self Assembled ◽  
Flexible Polyurethane

To improve stretchability of gas barrier films without sacrificing the barrier property, alternatively charged and highly flexible polyurethane chains were layer-by-layer self-assembled with graphene oxide nano-platelets.

scholarly journals Evolution of biobased and nanotechnology packaging – a review

2020 ◽  
Vol 35 (4) ◽  
pp. 491-515
Author(s):  
Tom Lindström ◽  
Folke Österberg
Keyword(s):  
Biodegradable Polymers ◽  
Food Packaging ◽  
Environmental Issues ◽  
Barrier Properties ◽  
Environmental Problems ◽  
Layer By Layer ◽  
Polyelectrolyte Complexes ◽  
Life Issues ◽  
Technological Developments ◽  
End Of Life Issues

AbstractThis review deals with the evolution of bio-based packaging and the emergence of various nanotechnologies for primary food packaging. The end-of life issues of packaging is discussed and particularly the environmental problems associated with microplastics in the marine environment, which serve as a vector for the assimilation of persistent organic pollutants in the oceans and are transported into the food chain via marine and wild life. The use of biodegradable polymers has been a primary route to alleviate these environmental problems, but for various reasons the market has not developed at a sufficient pace that would cope with the mentioned environmental issues. Currently, the biodegradable plastics only constitute a small fraction of the fossil-based plastic market. Fossil-based plastics are, however, indispensable for food safety and minimization of food waste, and are not only cheap, but has generally more suitable mechanical and barrier properties compared to biodegradable polymers. More recently, various nanotechnologies such as the use of nanoclays, nanocellulose, layer-by-layer technologies and polyelectrolyte complexes have emerged as viable technologies to make oxygen and water vapor barriers suitable for food packaging. These technological developments are highlighted as well as issues like biodegradation, recycling, legislation issues and safety and toxicity of these nanotechnologies.

scholarly journals Layer-by-Layer Assembled Nano-Composite Multilayer Gas Barrier Film Manufactured with Stretchable Substrate

2021 ◽  
Vol 11 (13) ◽  
pp. 5794
Author(s):  
Se-Jung Kim ◽  
Tanyoung Kim ◽  
Dongsoo Kim ◽  
Byeong-Kwon Ju
Keyword(s):  
Transmission Rate ◽  
Significant Loss ◽  
Light Transmittance ◽  
Poly Vinyl Alcohol ◽  
Layer By Layer ◽  
Gas Barrier ◽  
Nano Composite ◽  
Barrier Films ◽  
Potential Applications ◽  
Barrier Film

Most gas barrier films produce cracks that lead to a significant loss of gas barrier integrity when strain is applied. In order to fabricate stretchable gas barrier films with low water permeability and high endurance after stretching, we used polydiallydimethylammonium (PDDA) mixed with graphene oxide (GO) and poly (vinyl alcohol) (PVA) mixed with montmorillonite (MMT). These films were manufactured by layer-by-layer assembly on an Ecoflex/polydimethylsiloxane (PDMS) substrate with pre-strain applied. A total of 30 layers of PDDA (GO)/PVA (MMT) coated on the substrate exhibited a low water vapor transmission rate of 2.5 × 10−2 g/m2 day after 100 cycles of stretching (30% strain). In addition, they exhibited a high light transmittance of 86.54%. Thus, the prepared stretchable gas barrier film has potential applications as a barrier film in transparent and stretchable electronic devices.

Highly Oriented Gold/Nanoclay–Polymer Nanocomposites for Flexible Gas Barrier Films

2015 ◽  
Vol 7 (8) ◽  
pp. 4778-4783 ◽  
Author(s):  
Eun-Ho Song ◽  
Byung-Hyun Kang ◽  
Tan-Young Kim ◽  
Hyun-Jun Lee ◽  
Young-Wook Park ◽  
...  
Keyword(s):  
Polymer Nanocomposites ◽  
Gas Barrier ◽  
Barrier Films

Morphology and Gas Barrier Properties of Polymer Nanocomposites

2016 ◽  
pp. 397-417 ◽  
Author(s):  
Abbas Ghanbari ◽  
Marie-Claude Heuzey ◽  
Pierre J. Carreau ◽  
Minh-Tan Ton-That
Keyword(s):  
Polymer Nanocomposites ◽  
Barrier Properties ◽  
Gas Barrier ◽  
Gas Barrier Properties

scholarly journals 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 ◽  
2018 ◽  
Vol 11 (12) ◽  
pp. 2346 ◽  
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.

High Oxygen Barrier Polyethylene Films

2017 ◽  
Vol 25 (8) ◽  
pp. 571-582 ◽  
Author(s):  
Carmen Fernández Ayuso ◽  
Alejandro Arribas Agüero ◽  
Jose A. Plaza Hernández ◽  
Antonio Bódalo Santoyo ◽  
Elisa Gómez Gómez
Keyword(s):  
Food Packaging ◽  
High Oxygen ◽  
Oxygen Barrier ◽  
Layer By Layer ◽  
Insulating Layer ◽  
Polyethylene Films ◽  
Barrier Films ◽  
Film Substrate ◽  
Corona Treatment ◽  
Thermal Stability Of

“Layer by layer” technology was used to create transparent, thin and high barrier polyethylene films to use in food packaging. These films were made by inserting successive layers of polyacrylamide and montmorillonite (Cloisite Na+, non-organic modification) grown onto a low density polyethylene (LDPE) film substrate submitted to corona treatment. Excellent oxygen permeability results were reached with only 9 bilayers, with a reduction of 99.92%, compared to the pure polyethylene. This allowed the oxygen barrier film to change from poor to high (3.66 cm3/m2·day), with a total thickness of 48 microns, due to the structure formed over the film to create a tortuous path for oxygen molecules. Optical properties were analysed, showing a ≥92% transparency in all samples. Thermal stability of polyethylene was slightly improved and this was attributed to nanoclays presence forming an insulating layer. The result of this research is a thin structured film which is a good candidate for common barrier films replacement in food packaging thanks to its high oxygen barrier capacity, optical transparency, microwaveability and recyclability.

Formation and oxygen diffusion barrier properties of fish gelatin/natural sodium montmorillonite clay self-assembled multilayers onto the biopolyester surface

RSC Advances ◽  
2015 ◽  
Vol 5 (75) ◽  
pp. 61465-61480 ◽  
Author(s):  
Daniela Enescu ◽  
Alberto Frache ◽  
Francesco Geobaldo
Keyword(s):  
Diffusion Barrier ◽  
Oxygen Diffusion ◽  
Barrier Properties ◽  
Montmorillonite Clay ◽  
Fish Gelatin ◽  
Sodium Montmorillonite ◽  
Gas Barrier ◽  
Self Assembled ◽  
Gas Barrier Properties

In order to expand the application of bio-derived polymers it is imperative that the issues related to their poor gas barrier properties be addressed.

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