Thermoformable high oxygen barrier multilayer EVOH/LDPE film/foam

2020 ◽  
Vol 137 (30) ◽  
pp. 48903 ◽  
Author(s):  
Claudio Souza ◽  
Jingxing Feng ◽  
Andrew Olah ◽  
Gary Wnek ◽  
Eric Baer
Keyword(s):  
High Oxygen ◽  
Oxygen Barrier ◽  
Ldpe Film

scholarly journals High oxygen barrier multilayer EVOH/LDPE film/foam

2018 ◽  
Vol 135 (26) ◽  
pp. 46425 ◽  
Author(s):  
Jingxing Feng ◽  
Zhenpeng Li ◽  
Andrew Olah ◽  
Eric Baer
Keyword(s):  
High Oxygen ◽  
Oxygen Barrier ◽  
Ldpe Film

Ecofriendly Fabrication of Modified Graphene Oxide Latex Nanocomposites with High Oxygen Barrier Performance

2016 ◽  
Vol 8 (48) ◽  
pp. 33210-33220 ◽  
Author(s):  
Yidan Guan ◽  
Kevin P. Meyers ◽  
Sharathkumar K. Mendon ◽  
Guangjie Hao ◽  
Jessica R. Douglas ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
High Oxygen ◽  
Oxygen Barrier ◽  
Modified Graphene Oxide ◽  
Barrier Performance ◽  
Modified Graphene

High-Oxygen Barrier Materials Based on Hyperbranched Aliphatic Polyesters

2009 ◽  
pp. 17-30 ◽  
Author(s):  
Jason D. Pratt ◽  
Brian G. Olson ◽  
Justin P. Brandt ◽  
Mohammad K. Hassan ◽  
Jo Ann Ratto ◽  
...  
Keyword(s):  
High Oxygen ◽  
Oxygen Barrier ◽  
Aliphatic Polyesters ◽  
Barrier Materials

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 Biluminescence Under Ambient Conditions: Water‐Soluble Organic Emitter in High‐Oxygen‐Barrier Polymer

2020 ◽  
Vol 8 (16) ◽  
pp. 2000427 ◽  
Author(s):  
Marine Louis ◽  
Heidi Thomas ◽  
Max Gmelch ◽  
Felix Fries ◽  
Anna Haft ◽  
...  
Keyword(s):  
Water Soluble ◽  
High Oxygen ◽  
Oxygen Barrier ◽  
Ambient Conditions

scholarly journals Enzymatic Hydrolysis of Bacterial Cellulose for the Production of Nanocrystals for the Food Packaging Industry

Nanomaterials ◽  
2020 ◽  
Vol 10 (4) ◽  
pp. 735
Author(s):  
Cesare Rovera ◽  
Filippo Fiori ◽  
Silvia Trabattoni ◽  
Diego Romano ◽  
Stefano Farris
Keyword(s):  
Enzymatic Hydrolysis ◽  
Bacterial Cellulose ◽  
Food Packaging ◽  
Hydrolytic Activity ◽  
High Oxygen ◽  
Oxygen Barrier ◽  
Final State ◽  
Barrier Coatings ◽  
Significant Difference ◽  
Packaging Industry

Bacterial cellulose nanocrystals (BCNCs) obtained by enzymatic hydrolysis have been loaded in pullulan biopolymer for use as nanoparticles in the generation of high-oxygen barrier coatings intended for food packaging applications. Bacterial cellulose (BC) produced by Komagataeibacter sucrofermentans was hydrolyzed by two different enzymatic treatments, i.e., using endo-1,4-β-glucanases (EGs) from Thermobifida halotolerans and cellulase from Trichoderma reesei. The hydrolytic activity was compared by means of turbidity experiments over a period of 145 h, whereas BCNCs in their final state were compared, in terms of size and morphology, by atomic force microscopy (AFM) and dynamic light scattering (DLS). Though both treatments led to particles of similar size, a greater amount of nano-sized particles (≈250 nm) were observed in the system that also included cellulase enzymes. Unexpectedly, transmission electron microscopy (TEM) revealed that cellulose nanoparticles were round-shaped and made of 4–5 short (150–180 nm) piled whiskers. Pullulan/BCNCs nanocomposite coatings allowed an increase in the overall oxygen barrier performance, of more than two and one orders of magnitude (≈0.7 mL·m−2·24 h−1), of pure polyethylene terephthalate (PET) (≈120 mL·m−2·24 h−1) as well as pullulan/coated PET (≈6 mL·m−2·24 h−1), with no significant difference between treatments (hydrolysis mediated by EGs or with the addition of cellulase). BCNCs obtained by enzymatic hydrolysis have the potential to generate high oxygen barrier coatings for the food packaging industry.

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