Photopyroelectric Characterization of Industrial Polymers: Temperature Dependent Thermal Diffusivity of Packaging Foils Manufactured from Low Density Polyethylene (LDPE) and Polyvinyl Chloride (PVC)

1999 ◽  
Vol 27 (4) ◽  
pp. 275-285
Author(s):  
Jan Paul Favier ◽  
Dorin Dadarlat ◽  
Dane Bicanic ◽  
Klaas Jan Riezebos ◽  
Cornelius Van den Berg ◽  
...  
Keyword(s):  
Thermal Diffusivity ◽  
Polyvinyl Chloride ◽  
Low Density Polyethylene ◽  
Low Density ◽  
Temperature Dependent

scholarly journals The Effect of Polymer Waste Addition on the Compressive Strength and Water Absorption of Geopolymer Ceramics

2021 ◽  
Vol 11 (8) ◽  
pp. 3540
Author(s):  
Numfor Linda Bih ◽  
Assia Aboubakar Mahamat ◽  
Jechonias Bidossèssi Hounkpè ◽  
Peter Azikiwe Onwualu ◽  
Emmanuel E. Boakye
Keyword(s):  
Public Health ◽  
Compressive Strength ◽  
Fracture Surface ◽  
Water Absorption ◽  
Chemical Bonding ◽  
Low Density Polyethylene ◽  
Low Density ◽  
Polymer Waste ◽  
Pull Out

The quantity of polymer waste in our communities is increasing significantly. It is therefore necessary to consider reuse or recycling waste to avoid an increase in the risk to public health. This project is aimed at using pulverized low-density polyethylene (LDPE) waste as a source to reinforce and improve compressive strength, and to reduce the water absorption of geopolymer ceramics (GC). Clay:LDPE composition consisting of 5%, 10%, and 15% LDPE was geopolymerized with an NaOH/Na2SiO3 solution and cured at 30 °C and 50 °C. Characterization of the geopolymer samples was carried out using XRF and XRD. The microstructure was analyzed by SEM and chemical bonding by FTIR. The SEM micrographs showed LDPE particle pull-out on the geopolymer ceramics’ fracture surface. The result showed that the compressive strength increases with the addition of pulverized polymer waste compared to the controlled without LDPE addition. Water absorption decreased with an increase in LDPE addition in the geopolymer ceramics composite.

Shear characterization of CaCO3-filled linear low density polyethylene

1988 ◽  
Vol 27 (2) ◽  
pp. 172-178 ◽  
Author(s):  
S. Ottani ◽  
A. Valenza ◽  
F. P. La Mantia
Keyword(s):  
Low Density Polyethylene ◽  
Low Density ◽  
Linear Low Density Polyethylene

Oxidative Ageing and Structural Characterization of Naturally Weathered Low Density Polyethylene Films

2020 ◽  
Vol 62 (4) ◽  
pp. 416-426
Author(s):  
N. H. Benmiloud ◽  
S. F. Chabira ◽  
A. H. Bhat ◽  
Y. K. Dasan ◽  
M. Sebaa
Keyword(s):  
Structural Characterization ◽  
Low Density Polyethylene ◽  
Low Density ◽  
Polyethylene Films ◽  
Oxidative Ageing

Thermal Diffusivity of Copper/Linear-low-density Polyethylene Composites

2017 ◽  
Vol 25 (6) ◽  
pp. 447-452
Author(s):  
James K. Carson ◽  
Mohamed Alsowailem
Keyword(s):  
Thermal Conductivity ◽  
Thermal Diffusivity ◽  
High Density Polyethylene ◽  
Relative Increase ◽  
Low Density Polyethylene ◽  
Low Density ◽  
Linear Low Density Polyethylene ◽  
Capacity Data ◽  
Thermal Diffusivities ◽  
Polyethylene Composites

The thermal diffusivities of copper/linear-low-density polyethylene (Cu/LLDPE) composites were measured relative to the thermal diffusivity of pure LLDPE. The relative thermal diffusivities were similar to those obtained for copper/high-density polyethylene composites, but were noticeably different from estimated values derived from thermal conductivity, density and specific heat capacity data for Cu/LLDPE from the literature. The thermal diffusivity of the composite material initially decreased below that of the pure polymer with the addition of a small amount of copper, before increasing above it as more was added. There would appear to be marginal or no benefit from adding less than about 15 to 20% metal by volume to a polymer, since the relative increase in thermal diffusivity only becomes significant for greater volumes.

Characterization of antioxidant low density polyethylene/polyaniline blends prepared via extrusion

2012 ◽  
Vol 135 (2-3) ◽  
pp. 903-911 ◽  
Author(s):  
Ashveen V. Nand ◽  
Sudip Ray ◽  
Jadranka Travas-Sejdic ◽  
Paul A. Kilmartin
Keyword(s):  
Low Density Polyethylene ◽  
Low Density
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