Diffusion and solubility coefficients determined by permeation and immersion experiments for organic solvents in HDPE geomembrane

Chao, Keh-Ping; Wang, Ping; Wang, Yating

doi:10.1016/j.jhazmat.2006.08.022

Cited by 28 publications

(16 citation statements)

References 15 publications

(56 reference statements)

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“…The contaminant mass flux can be important for evaluating the performance of a landfill cover barrier system as this quantifies the diffusive transport of volatile contaminants moving through the intact liner system. Several investigators have examined the diffusion of contaminants through HDPE geomembranes at 20e25 C (Park and Nibras, 1993;Xiao et al, 1997b;Naik, 1998, 1999;Sangam and Rowe, 2001, 2005: Joo et al, 2004, 2005Chao et al, 2007;Islam and Rowe, 2009). Park and Nibras (1993) and Aminabhavi and Naik 1998 examined diffusion of contaminants through LLDPE while Xiao et al (1997a) and Nefso and Burns (2007) examined diffusion through PVC all with a focus on room temperature (or above) and thus there is a need for data at lower temperatures relevant to specific applications in cold climates.…”

Section: Introductionmentioning

confidence: 99%

Geomembrane applications for controlling diffusive migration of petroleum hydrocarbons in cold region environments

McWatters

Rutter

Rowe³

2016

Journal of Environmental Management

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Section: Introductionmentioning

confidence: 99%

Geomembrane applications for controlling diffusive migration of petroleum hydrocarbons in cold region environments

McWatters

Rutter

Rowe³

2016

Journal of Environmental Management

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“…To predict the mass transfer process in a package, it is necessary to characterize the diffusion coefficient and to estimate the solubility of a permeant. Diffusion and solubility coefficients of aroma compounds in packaging materials can be determined by permeation or sorption kinetics; after that, the permeability coefficients are calculated. The permeability coefficient values from sheets and films are then used to estimate barrier properties of container‐closure systems …”

Section: Introductionmentioning

confidence: 99%

Transport Coefficients of Eucalyptol through Various Polymeric Films

et al. 2011

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This study presents the determination of the transport properties of eucalyptol, which is a key aroma compound in fresh tropical herbs through different polymeric packaging materials. Packaging films used in this study were polyethylene, polypropylene, Nylon, polyethylene terephthalate and polylactide (PLA1 and PLA2). Test films were immersed in the 1000ppm of aroma compound and stored in amber vials. The concentrations of aroma compounds extracted from films were determined using gas chromatography. Diffusion, solubility, permeability and partition coefficients were calculated from sorption kinetics. Results show that the diffusion and solubility coefficients of eucalyptol were lowest in PLA1 and highest in polyethylene. Solubility coefficients were associated with partition coefficients as well as solubility parameters and contact angle values. Primary factor determining solubility was affinity between the aroma compounds and the polymeric films. Transport coefficients of eucalyptol in the vapor phase followed the same trends as in the liquid phase with about 3-fold greater. Understanding interaction phenomenon between the key aroma compound and major packaging films may contribute to improvements in film selection and the design of food packaging applications. Finding from this research contributes toward future development of the high-aroma barrier materials. M t /M∞ M t /M∞ M t /M∞ a Solubility coefficients obtained from immersion study. 21

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“…The solubility and diffusion coefficient of ethyl acetate in the BOPP film were measured by impregnation method . The values of ( W t − W 0 ) and ( W ∞ − W 0 ) are calculated, and the results are shown in Table ; C t is calculated according to the following formula:

italicCt = ((), W_{t} - W_{0}) / ((), W_{\infty} - W_{0}),

D = π {(Lθ / 4)}^{2},

S = ((), W_{\infty} - W_{0}) / W_{0} \times 100 % .

…”

Section: Resultsmentioning

confidence: 99%

“…Immersion is one of the common methods for testing diffusion coefficients and solubility. The experimental and data‐processing methods are described in the literature . Using a one‐dimensional diffusion equation based on Fick's second law, the diffusion and varying limits are obtained by immersion test.…”

Section: Methodsmentioning

confidence: 99%

Crystalline structure and morphology of biaxially oriented polypropylene film under the coexistence of organic silica particles and its influence on the adsorption diffusion of polar solvent molecules

Zhang

et al. 2018

Packag Technol Sci

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In this article, a silica/EVA/PP composite was prepared by melt‐blending nanosilica with polypropylene, and a surface‐modified BOPP film was prepared by using this as raw material. SEM studies have shown the special microscopic morphology of the surface and its cross section. X‐ray diffraction (XRD) characterized and analysed crystallinity, molecular orientation, and grain size in the modified film. Furthermore, the presence of microholes in the modified film was verified by positron annihilation spectroscopy. The results show that compared with the unmodified films, the modified BOPP films have higher crystallinity and smaller grain size. Its dense surface structure and reticular fibre bundle structure make the diffusion coefficient and solubility of ethyl acetate small in the film. The mechanical properties, barrier properties, heat resistance, and ink adhesion of this film have been significantly improved. Modified film can be used as the food packaging film which has high performance and low residue.

show abstract

Diffusion and solubility coefficients determined by permeation and immersion experiments for organic solvents in HDPE geomembrane

Cited by 28 publications

References 15 publications

Geomembrane applications for controlling diffusive migration of petroleum hydrocarbons in cold region environments

Geomembrane applications for controlling diffusive migration of petroleum hydrocarbons in cold region environments

Transport Coefficients of Eucalyptol through Various Polymeric Films

Crystalline structure and morphology of biaxially oriented polypropylene film under the coexistence of organic silica particles and its influence on the adsorption diffusion of polar solvent molecules

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