Graphenic Nanocomposite Barrier Films

MRS Advances ◽  
2016 ◽  
Vol 2 (1) ◽  
pp. 33-38
Author(s):  
Ken Bosnick ◽  
Nathalie Chapleau ◽  
Michel Champagne ◽  
Adam Bergren ◽  
Abdelkader Benhalima ◽  
...  
Keyword(s):  
Food Packaging ◽  
Graphene Nanoplatelets ◽  
Corrosion Tests ◽  
Transmission Rates ◽  
Barrier Films ◽  
Oxygen Barriers ◽  
Oxygen Transmission

ABSTRACTThe use of modern graphenic materials for improving oxygen barriers in food packaging and anti-corrosion barriers in coatings is explored by compounding and casting graphene nanoplatelets (GNP) with polyethylene (PE) and epoxy (EP). The GNP / PE films show comparable oxygen transmission rates to the neat PE films, indicating that further processing will be necessary to realize the desired enhancements. Early corrosion tests indicate that the GNP / EP coatings are providing more protection than the neat EP coatings on steel. Experiments to expand on these results are underway.

Design of Nano-Filled PET Sheets With Enhanced Barrier Properties

2018 ◽  
Author(s):  
Fabrizio Quadrini ◽  
Denise Bellisario ◽  
Loredana Santo
Keyword(s):  
Analytical Model ◽  
Food Packaging ◽  
Barrier Properties ◽  
Transmission Ratio ◽  
Nano Composites ◽  
Pvd Coatings ◽  
Pet Food ◽  
Aluminum Target ◽  
Multiple Recycling ◽  
Oxygen Transmission

Barrier properties are achieved in PET food packaging by using additives, coatings or multi-layers. An analytical model to predict the contamination during multiple recycling steps of this packaging is proposed. This model shows that lower contents of non-PET materials should be achieved to promote a valid recycling chain. A possible solution is using nano-technologies because of the very small amount of added material. Results are shown in the case of PVD coatings with aluminum target, and PET nano-composites. In both cases, less than 0.1 wt% of aluminum is able to reduce the oxygen transmission ratio of the PET packaging down to 50% of the virgin PET sheet.

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.

scholarly journals Web Based Decision Support System yo Determine yhe Appropriate Packaging of Ethnic and Traditional Indonesian Foods

2018 ◽  
Vol 14 (2) ◽  
Author(s):  
Latifah Nurbaiti ◽  
Kudang Boro Seminar ◽  
Nugraha Edhi Suyatma
Keyword(s):  
Decision Support ◽  
Decision Support System ◽  
Support System ◽  
Food Packaging ◽  
Active Packaging ◽  
Web Based ◽  
The Right ◽  
Oxygen Barriers ◽  
Selection Of

Culinary efforts, especially ethnic and traditional snacks attract many people to Indonesia. Maintaining the quality of snacks for consumers requires a good packaging technique. Food packaging consists of a wide variety of packaging options that match the characteristics of each snack; this is no easy task. Decision support systems can help to facilitate decisions made regarding selection of the right packaging. This paper focuses on identifying snacks, types of packaging and active packaging parameters to build a decision support system in order to determine appropriate packaging. Types of packaging are determined using fuzzy Sugeno 4 parameters: fat, water activity, shelf-life and price. Active packaging of the snacks is done using the if-else rule with parameterised types of packaging, preservatives, oxygen barriers and water vapour barriers. The end result of this research is a web-based decision support system, which recommends types of packaging and active packaging for snacks.

High-Barrier Poly(hydroxy amide ethers):  Effect of Polymer Structure on Oxygen Transmission Rates. 31

1998 ◽  
Vol 31 (23) ◽  
pp. 8281-8290 ◽  
Author(s):  
David J. Brennan ◽  
Jerry E. White ◽  
Charles N. Brown
Keyword(s):  
Polymer Structure ◽  
Transmission Rates ◽  
Oxygen Transmission

Gas Barrier Properties of SiOX Films Deposited by RF Magnetron Co-Sputtering

2011 ◽  
Vol 284-286 ◽  
pp. 48-52 ◽  
Author(s):  
Zhuang Liu ◽  
Lin Zhu ◽  
Jing Lin ◽  
Zhi Hui Sun
Keyword(s):  
Ethylene Terephthalate ◽  
Barrier Properties ◽  
Small Islands ◽  
Gas Barrier ◽  
Barrier Films ◽  
Poly Ethylene Terephthalate ◽  
Shadowing Effect ◽  
Poly Ethylene ◽  
Oxygen Transmission ◽  
Double Targets

SiOx barrier films were deposited on poly (ethylene terephthalate) (PET) by radio frequency (RF) magnetron co-sputtering with double targets. The films deposited by co-sputtering were denser and smoother because different energy particles sputtering from double targets grew small islands to weaken shadowing effect which greatly reduce the interval gaps. The water vapor and oxygen transmission of SiOx films deposited by co-sputtering decreased to 0.31 cc/m2/day, 0.27 g/m2/24h respectively.

Nd:YAG Laser Perforation of Plastic Films for Enhanced Breathability

2010 ◽  
Vol 93-94 ◽  
pp. 79-82 ◽  
Author(s):  
Charinee Winotapun ◽  
Noppadon Kerddonfag ◽  
Wannee Chinsirikul
Keyword(s):  
Nd:Yag Laser ◽  
Plastic Films ◽  
Transmission Rates ◽  
Biaxially Oriented Polypropylene ◽  
Laser Perforation ◽  
Oriented Polypropylene ◽  
Pulse Energies ◽  
Very High ◽  
Oriented Polyethylene ◽  
Oxygen Transmission

This study focused on investigating the Nd:YAG laser perforation process of several common plastic films including biaxially-oriented polypropylene (BOPP), biaxially-oriented polyethylene terephthalate (BOPET) and low density polyethylene (LDPE) films. Films were perforated under various pulse energies of 50, 150 and 250 mJ and with pulse duration of ~10 ns and pulse repetition of 1 Hz. It was found that, BOPP, BOPET and LDPE films could be perforated using our developed Nd:YAG laser perforating system. Perforation width or diameters of all films increased with increasing pulse energies. Observed perforations were different among the three film types. For instance, at the pulse energy of 150 mJ, average microperforation diameters of BOPP, BOPET, and LDPE were 51.9, 57.5, and 31.0 microns, respectively. Overall results clearly demonstrated that a Nd:YAG laser perforation process used in this study was effective in developing breathable packaging films with tailored oxygen permeation property. Commercial BOPP films containing 200-1,400 micro-perforations/m2 (average perforation diameter of  50 µm) showed a significant improvement in oxygen transmission rates (OTR) of 25-700% over that of the regular BOPP. Very high OTR films of 16,000 cc/m2.day could be effectively produced for the micro-perforated BOPP, where OTR values of close to 20,000 cc/m2.day was obtainable in the case of BOPET films.

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