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Conflict of Interest: In relation to this article, we declare that there is no conflict of interest.

Publication history: Received September 10, 2002
Accepted February 11, 2003

This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/bync/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Barrier Property and Morphology of Polypropylene/Polyamide Blend Film

Dukjoon Kim Seong Woo Kim^1†

Department of Chemical Engineering, Polymer Technology Center, Sungkyunkwan University, Suwon 440-746, Korea ¹Department of Chemical Engineering, Kyonggi University, Suwon 442-760, Korea

Korean Journal of Chemical Engineering, July 2003, 20(4), 776-782(7), 10.1007/BF02706923

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Abstract

The barrier property of polypropylene (PP)/polyamide (PA) blend film produced by the extrusion casting film process was studied by investigating the effects of rheological properties of each components, compatibilizer content, screw rpm, and the absorbed moisture, and by performing morphological analysis and permeability modeling. The oxygen barrier property of blend film with ellipsoidal structure of PA dispersed phase was significantly improved by a factor of 5.4 with the addition of only 20 wt% PA, when compatibilizer was added by the content of 7 phr and the PP matrix resin and process condition was selected to induce lower viscosity ratio less than unity. Using Fricke’s model with the value of 19.6 of aspect ratio of the ellipsoid, the permeabilities of blend films as a function of PA content could be predicted and exhibited a good agreement with the experimental results. The absorbed moisture had a significant influence on the barrier property of the PP/PA blend system, suggesting that the hygroscopic PA resin should be incorporated with the high water barrier PP resin by the amount below about 20 wt% to minimize the deterioration of the barrier property in the humid atmosphere.

Keywords

Polypropylene/Polyamide Blends Barrier Property Permeability Modeling

References

Agres L, Segui Y, Delsol R, Raynaud P, J. Appl. Polym. Sci., 61(11), 2015 (1996)
Azuta K, Tadanaga K, Minami T, J. Ceram. Soc. Jpn., 107(3), 293 (1999)
Faisant JB, Ait-Kadi A, Bousmina M, Deschenes L, Polymer, 39(3), 533 (1998)
Favis BD, Chalifoux JP, Polym. Eng. Sci., 27(20), 1591 (1987)
Finch CA, "Polyvinyl Alcohol," John Wiley and Sons, New York (1993)
Finlayson KM, "Plastic Film Technology: High Barrier Plastic Films for Packaging," Technomic Publishing Co., Lancaster, Pa. (1989)
Holstimiettinen RM, Perttila KP, Seppala JV, Heino MT, J. Appl. Polym. Sci., 58(9), 1551 (1995)
Holsti-Meittinen R, Seppala J, Ikkala OT, Polym. Eng. Sci., 32(13), 868 (1992)
Jarus D, Hiltner A, Baer E, Polymer, 43(8), 2401 (2002)
Kamal MR, Garmabi H, Hozhabr S, Arghyris L, Polym. Eng. Sci., 35(1), 41 (1995)
Kim SW, Chun YH, Korean J. Chem. Eng., 16(4), 511 (1999)
Kit KM, Schultz JM, Gohil RM, Polym. Eng. Sci., 35(8), 680 (1995)
Lee SY, Kim SC, Polym. Eng. Sci., 37(2), 463 (1997)
Lee SY, Kim SC, J. Appl. Polym. Sci., 67(12), 2001 (1998)
Lee SY, Lee JD, Yang SM, J. Mater. Sci., 34(6), 1233 (1999)
Lohfink GW, Kamal MR, Polym. Eng. Sci., 33(21), 1404 (1993)
Subramanian PM, Polym. Eng. Sci., 25(8), 483 (1985)
Subramanian PM, Mehra V, Polym. Eng. Sci., 27(9), 663 (1987)
Tadmor BD, Chalifoux JP, "Princiles of Polymer Processing," John Wiley & Sons, New York (1979)
Wu S, Polym. Eng. Sci., 27(5), 335 (1987)
Yeo JH, Lee CH, Park CS, Lee KJ, Nam JD, Kim SW, Adv. Polym. Sci., 20, 191 (2001)