High‐Density Polyethylene Micro‐ and Nanocomposites: Effect of Particle Shape, Size and Surface Treatment on Polymer Crystallinity and Gas Permeability

Osman, Maged A.; Atallah, Ayman

doi:10.1002/marc.200400254

Cited by 79 publications

(60 citation statements)

References 23 publications

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“…The geometrical shape of the particle plays an important role in determining the properties of the composites [10]. There is 40% reduction in oxygen permeability upon the incorporation of 4%·vol organoclay into polyethylene, as reported by Osman et al [8,9]. Avella et al suggested that the calcium carbonate nanoparticles drastically reduced the permeability of oxygen and carbon dioxide for PP nanocomposites [11].…”

Section: Introductionmentioning

confidence: 87%

“…Many studies have demonstrated improvements in permeability reduction to gases, moisture and organic vapours resulting from the addition of low concentrations of layered clay nanoparticles to various thermoplastic matrices [6][7][8]. Nanoparticles have been shown to influence the properties of the polymers at low volume fractions [9]. This is mainly due to their nanometer scale particle size and intraparticle distances.…”

Section: Introductionmentioning

confidence: 99%

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Oxygen barrier property of polypropylene-polyether treated clay nanocomposite

Pannirselvam¹,

Genovese²,

Jollands³

et al. 2008

Express Polym. Lett.

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Abstract. Polypropylene (PP) nanocomposites were obtained by solution blending of polyether treated montmorillonite and PP, with a coupling agent of maleic anhydride grafted polypropylene (PP-g-MA). The composition of the inorganic clay was varied in 1, 2 and 5 phr (parts of clay per hundred of PP by mass) while films of the composites were obtained via compression molding. Wide-angle X-ray scattering (WAXS) showed nanocomposites in which silicate layers were exfoliated and intercalated with respect to the different clay ratios. The morphology and gas permeability of hybrids prepared with organoclay were compared. Morphological studies using transmission electron microscopy showed most clay layers were dispersed uniformly in the PP matrix. Some tactoids of agglomerated nanoparticles were detected, as clay content increased. The oxygen permeability for all the hybrids for clay loadings were reduced by 30% of the corresponding values for pure PP.

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Section: Introductionmentioning

confidence: 87%

Section: Introductionmentioning

confidence: 99%

Oxygen barrier property of polypropylene-polyether treated clay nanocomposite

Pannirselvam¹,

Genovese²,

Jollands³

et al. 2008

Express Polym. Lett.

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“…A lot of attention has been particularly paid these last years on nanofillers such as clays to reinforce PA or PE properties [17][18][19][20][21][22][23][24][25][26][27][28][29][30][31][32][33][34][35][36]. Indeed due to their high aspect ratio and their impermeable character, the clay platelets are expected to induce significant tortuosity effects when they are dispersed within a polymer matrix.…”

Section: Introductionmentioning

confidence: 99%

Reinforcement of the Gas Barrier Properties of Polyethylene and Polyamide Through the Nanocomposite Approach: Key Factors and Limitations

Picard

Gérard

Espuche

2013

Oil Gas Sci. Technol. – Rev. IFP Energies nouvelles

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Re´sume´-Renforcement des proprie´te´s barrie`re aux gaz de matrices polye´thyle`ne et polyamide par l'approche nanocomposite : facteurs cle´s et limitations -Dans cette e´tude, des nanocomposites sont pre´pare´s par voie fondue pour deux matrices, une matrice polyamide 6 (PA6) et une matrice polye´thyle`ne (PE), leur morphologie ainsi que leurs proprie´te´s barrie`res sont e´tudie´es. Les argiles organophiles sont choisies en fonction de la nature chimique de chacune des matrices polyme`res. Les nanocomposites pre´pare´s a`partir de polyamide 6 pre´sentent une structure exfolie´e et des proprie´te´s barrie`res ame´liore´es alors qu'une morphologie de type microcomposite ne conduisant aà ucune ame´lioration des proprie´te´s barrie`res est obtenue pour le syste`me PE/montmorillonite. Diffe´rents polye´thyle`nes modifie´s sont alors e´value´s en tant qu'agents compatibilisants pour les syste`mes PE. Les effets de la masse molaire, de la polarite´et de la fraction massique d'agent compatibilisant sur la dispersion des charges et sur les proprie´te´s barrie`res sont e´tudie´s. Un taux massique d'agent compatibilisant e´gal a`4 fois celui des charges s'ave`re eˆtre optimal pour l'ensemble des agents compatibilisants. Par ailleurs, la masse molaire des agents compatibilisants joue un roˆle primordial sur l'e´tat de dispersion des charges. Contrairement aux syste`mes PA, les proprie´te´s barrie`res des syste`mes PE ne sont pas directement relie´es a`l'e´tat de dispersion des charges mais de´pendent e´galement des interfaces charges/matrice. Les PE oxyde´s de faible masse molaire sont identifie´s comme des agents compatibilisants particulie`rement inte´ressants pour les proprie´te´s barrie`res et une optimisation pas a`pas des syste`mes est entreprise. Une combinaison de PE oxyde´de faible masse molaire et de PE greffe´anhydride male´ique de haute masse molaire conduisant a`diviser la perme´abilite´aux gaz du nanocomposite d'un facteur 2 par rapport a`la matrice PE s'ave`re particulie`rement inte´ressante.Abstract -Reinforcement of the Gas Barrier Properties of Polyethylene and Polyamide Through the Nanocomposite Approach: Key Factors and Limitations -In this study, polyamide 6 (PA6) and polyethylene (PE) nanocomposites were prepared from melt blending and a detailed characterization of the nanocomposite morphology and gas barrier properties was performed. The choice of the organoclay was adapted to each polymer matrix. Exfoliated morphology and improved gas transport Oil & Gas Science and Technology -Rev. IFP Energies nouvelles, Vol. 70 (2015), No. 2, pp. 237-249 Ó E. Picard et al., published by IFP Energies nouvelles, 2013 DOI: 10.2516 This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.properties were obtained by melt mixing the polar PA6 matrix and the organoclay, whereas a microcomposite with poor...

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“…In the first case the nanoparticles are assumed to act as obstacles impeding the permeation of gas molecules through the film. [3][4][5][6][7][8][9] On the other hand, nanocomposite gas separation membranes have been described in which the nanoparticles seemed to enhance the gas transport properties of the film relative to the corresponding pure matrix material. [2,[10][11][12][13][14][15] Such contradictory results show that a simple and generalizing explanation for the influence of nanoparticles on the permeability of composite materials cannot be given.…”

Section: Introductionmentioning

confidence: 99%

“…[4,6] In case of an aspect ratio a of 1 (i.e., the particle shape is spherical) the Nielson equation is equal to the Maxwell equation described above. In many cases the obstacle models are not applicable, because they neglect possible interactions between nanoparticle and polymer as well as nanoparticle and penetrating gas molecules.…”

Section: Introductionmentioning

confidence: 99%

Investigation of Oxygen Permeation through Composites of PMMA and Surface‐Modified ZnO Nanoparticles

Heß

Demir

Yakutkin

et al. 2009

Macromol. Rapid Commun.

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Oxygen permeabilities of nanocomposite films consisting of poly(methyl methacrylate) (PMMA) and different amounts of spherical zinc oxide (ZnO) nanoparticles were determined to investigate the barrier effect of this material with respect to particle content. A method was applied which is based on quenching of an excited phosphorescent dye by oxygen. Possible effects of the nanoparticles on the response of the dye molecules were investigated and were ruled out.magnified image

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High‐Density Polyethylene Micro‐ and Nanocomposites: Effect of Particle Shape, Size and Surface Treatment on Polymer Crystallinity and Gas Permeability

Cited by 79 publications

References 23 publications

Oxygen barrier property of polypropylene-polyether treated clay nanocomposite

Oxygen barrier property of polypropylene-polyether treated clay nanocomposite

Reinforcement of the Gas Barrier Properties of Polyethylene and Polyamide Through the Nanocomposite Approach: Key Factors and Limitations

Investigation of Oxygen Permeation through Composites of PMMA and Surface‐Modified ZnO Nanoparticles

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