Estimation of Membrane Diffusion Coefficients and Equilibration Times for Low-Density Polyethylene Passive Diffusion Samplers

2004 ◽  
Vol 38 (6) ◽  
pp. 1849-1857 ◽  
Author(s):  
Craig E. Divine ◽  
John E. McCray
Keyword(s):  
Diffusion Coefficients ◽  
Passive Diffusion ◽  
Low Density Polyethylene ◽  
Low Density ◽  
Membrane Diffusion

Implications of observed PBDE diffusion coefficients in low density polyethylene and silicone rubber

2016 ◽  
Vol 18 (1) ◽  
pp. 87-94 ◽  
Author(s):  
Jhon F. Narváez Valderrama ◽  
Kine Baek ◽  
Francisco J. Molina ◽  
Ian J. Allan
Keyword(s):  
Silicone Rubber ◽  
Diffusion Coefficients ◽  
Passive Sampling ◽  
Low Density Polyethylene ◽  
Low Density

Significance of PBDE diffusivities in polymers for passive sampling and for the risk to biota when associated with microplastics.

Measurement of solubility and diffusion coefficients of ethylene in solid and molten low‐density polyethylene with different melt indices

2020 ◽  
Vol 60 (8) ◽  
pp. 1998-2007
Author(s):  
Binbo Jiang ◽  
Jincheng Dai ◽  
Jingyuan Sun ◽  
Jian Ye ◽  
Meijuan Chen ◽  
...  
Keyword(s):  
Diffusion Coefficients ◽  
Low Density Polyethylene ◽  
Low Density ◽  
And Diffusion

Determination of Diffusion Coefficients of Gases Through a Flat Polymeric Membrane by the Method of Non-Linear Regression

1993 ◽  
Vol 58 (12) ◽  
pp. 2836-2845 ◽  
Author(s):  
Václav Dušek ◽  
Milan Šípek ◽  
Pavla Sunková
Keyword(s):  
Carbon Dioxide ◽  
Linear Regression ◽  
Diffusion Coefficients ◽  
Gaseous Mixture ◽  
Low Density Polyethylene ◽  
Polymeric Membrane ◽  
Low Density ◽  
Non Linear ◽  
Different Thickness

Non-linear regression was applied for calculation of diffusion coefficients of gases through a flat polymeric membrane from the experimental data obtained by the flow permeation method with the thermal conductivity detection of composition of gaseous mixture. to verify this method a polyethylene and carbon dioxide was chosen. Diffusion coefficients of carbon dioxide in the low-density polyethylene of two different thickness at the temperature of 25 °C were determined with precision about ±2.5% in agreement with literature.

Diffusion coefficients in systems LDPE+cyclohexane and LDPE+benzene

e-Polymers ◽  
2010 ◽  
Vol 10 (1) ◽  
Author(s):  
Alena Randová ◽  
Lidmila Bartovská ◽  
Štěpán Hovorka ◽  
Tomáš Bartovský ◽  
Pavel Izák ◽  
...  
Keyword(s):  
Experimental Data ◽  
Diffusion Coefficients ◽  
Activation Energies ◽  
Low Density Polyethylene ◽  
Organic Liquids ◽  
Low Density

AbstractThe swelling of the low density polyethylene in organic liquids (cyclohexane and benzene) was studied. The area of swelling was measured as a function of temperature and time. The experimental data were used for calculating the diffusion coefficients and the activation energies of this process.

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