Large-scale fabrication of linear low density polyethylene/layered double hydroxides composite films with enhanced heat retention, thermal, mechanical, optical and water vapor barrier properties

2016 ◽  
Vol 243 ◽  
pp. 62-69 ◽  
Author(s):  
Jiazhuo Xie ◽  
Kun Zhang ◽  
Qinghua Zhao ◽  
Qingguo Wang ◽  
Jing Xu
Keyword(s):  
Water Vapor ◽  
Layered Double Hydroxides ◽  
Large Scale ◽  
Composite Films ◽  
Barrier Properties ◽  
Low Density Polyethylene ◽  
Low Density ◽  
Linear Low Density Polyethylene ◽  
Water Vapor Barrier ◽  
Double Hydroxides

Oxygen and Water Vapor Barrier Properties of MMT Nanocomposites from Low Density Polyethylene or EPM with Grafted Succinic Groups

2008 ◽  
Vol 8 (4) ◽  
pp. 1690-1699 ◽  
Author(s):  
Elisa Passaglia ◽  
Monica Bertoldo ◽  
Silvia Ceriegi ◽  
Roberta Sulcis ◽  
Piero Narducci ◽  
...  
Keyword(s):  
Water Vapor ◽  
Barrier Properties ◽  
Low Density Polyethylene ◽  
Low Density ◽  
Water Vapor Barrier

scholarly journals Effects of Immobilized Ionic Liquid on Properties of Biodegradable Polycaprolactone/LDH Nanocomposites Prepared by In Situ Polymerization and Melt-Blending Techniques

Nanomaterials ◽  
2020 ◽  
Vol 10 (5) ◽  
pp. 969
Author(s):  
Sonia Bujok ◽  
Jiří Hodan ◽  
Hynek Beneš
Keyword(s):  
Ionic Liquid ◽  
Water Vapor ◽  
Ring Opening ◽  
In Situ Polymerization ◽  
High Capacity ◽  
Barrier Properties ◽  
Melt Blending ◽  
Water Vapor Barrier ◽  
Double Hydroxides

The high capacity of calcinated layered double hydroxides (LDH) to immobilize various active molecules together with their inherent gas/vapor impermeability make these nanoparticles highly promising to be applied as nanofillers for biodegradable polyester packaging. Herein, trihexyl(tetradecyl)phosphonium decanoate ionic liquid (IL) was immobilized on the surface of calcinated LDH. Thus, the synthesized nanoparticles were used for the preparation of polycaprolactone (PCL)/LDH nanocomposites. Two different methods of nanocomposite preparation were used and compared: microwave-assisted in situ ring opening polymerization (ROP) of ε-caprolactone (εCL) and melt-blending. The in situ ROP of εCL in the presence of LDH nanoparticles with the immobilized IL led to homogenous nanofiller dispersion in the PCL matrix promoting formation of large PCL crystallites, which resulted in the improved mechanical, thermal and gas/water vapor barrier properties of the final nanocomposite. The surface-bonded IL thus acted as nanofiller surfactant, compatibilizer, as well as thermal stabilizer of the PCL/LDH nanocomposites. Contrary to that, the melt-blending caused a partial degradation of the immobilized IL and led to the production of PCL nanocomposites with a heterogenous nanofiller dispersion having inferior mechanical and gas/water vapor barrier properties.

Low-density polyethylene/curcumin melt extruded composites with enhanced water vapor barrier and antioxidant properties for active food packaging

Polymer ◽  
2019 ◽  
Vol 175 ◽  
pp. 137-145 ◽  
Author(s):  
Jasim Zia ◽  
Uttam C. Paul ◽  
José Alejandro Heredia-Guerrero ◽  
Athanassia Athanassiou ◽  
Despina Fragouli
Keyword(s):  
Water Vapor ◽  
Food Packaging ◽  
Antioxidant Properties ◽  
Low Density Polyethylene ◽  
Low Density ◽  
Water Vapor Barrier ◽  
Active Food Packaging

scholarly journals Rheological properties of low-density polyethylene filled with hydrophobic Co(Ni)-Al layered double hydroxides

Polímeros ◽  
2019 ◽  
Vol 29 (1) ◽  
Author(s):  
Silvia Jaerger ◽  
Andreas Leuteritz ◽  
Rilton Alves de Freitas ◽  
Fernando Wypych
Keyword(s):  
Rheological Properties ◽  
Layered Double Hydroxides ◽  
Low Density Polyethylene ◽  
Low Density ◽  
Double Hydroxides
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