Abstract
The bleeding (internal transport) process of additives in a polypropylene film under atmospheric pressure was investigated. The experimental results were explained more precisely by a new model assuming the two-step transport between the amorphous and crystalline regions. The diffusion coefficient of a higher fatty acid such as behenic acid (docosanoic acid) in isotactic polypropylene film and that of higher fatty acid amides such as erucamaide (13-cis-docosenamide) in ethylene copolymerized polypropylene film were determined at 40 and 50°C respectively. The difference between the diffusion coefficients of three slip agents in a polypropylene film at 50°C was explained using a molecular dynamics simulation in which self-association of the slip agent molecules by hydrogen bonding was considered.
References
Billingham, N. C., et al., “Solubility of Phenolic Antioxidants in Polyolefins”, J. Appl. Polym. Sci., 26, 3543–3555(1981)10.1002/app.1981.070261103Search in Google Scholar
Földes, E., Turcsányi, B., “Transport of Small Molecules in Polyolefins. I. Diffusion of Irganox 1010 in Polyethylene”, J. Appl. Polym. Sci., 46, 507–515(1992)10.1002/app.1992.070460317Search in Google Scholar
Földes, E., “Transport of Small Molecules in Polyolefins. II. Diffusion and Solubility of Irganox 1076 in Ethylene Polymers”, J. Appl. Polym. Sci., 48, 1905–1913(1993)10.1002/app.1993.070481104Search in Google Scholar
Földes, E., “Transport of Small Molecules in Polyolefins. III. Diffusion of Topanol CA in Ethylene Polymers”, J. Appl. Polym. Sci., 51, 1581–1589(1994)10.1002/app.1994.070510908Search in Google Scholar
Hayashi, H., et al., “Diffusion of Methyl Esters of Higher Fatty Acid in Polypropylene”, J. Appl. Polym. Sci., 51, 2165–2173(1994)10.1002/app.1994.070511308Search in Google Scholar
Fukuda, M., Kuwajima, S., “Molecular-dynamics Simulation of Moisture Diffusion in Polyethylene beyond 10 ns Duration”, J. Chem. Phys., 107, 2149–2159(1997)10.1063/1.474564Search in Google Scholar
Fukuda, M., Kuwajima, S., “Molecular Dynamics Simulation of Water Diffusion in Atactic and Amorphous Isotactic Polypropylene”, J. Chem. Phys., 108, 3001–3009(1998)10.1063/1.475686Search in Google Scholar
Koszinowski, J., “Diffusion and Solubility of Hydroxy Compounds in Polyolefines”, J. Appl. Polym. Sci., 31, 2711–2720(1986)10.1002/app.1986.070310826Search in Google Scholar
Kuwajima, S., et al., “Molecular-Dynamics Evaluation of Fluid-Phase Equilibrium Properties by a Novel Free-Energy Perturbation Approach: Application to Gas Solubility and Vapor Pressure of Liquid Hexane”, J. Chem. Phys., 124, 1241111–11(2006)10.1063/1.2178321Search in Google Scholar PubMed
Möller, K., Gevert, T., “An FTIR Solid-State Analysis of the Diffusion of Hindered Phenols in Low-Density Polyethylene (LDPE): The Effect of Molecular Size on the Diffusion Coefficient”, J. Appl. Polym. Sci., 51, 895–903(1994)10.1002/app.1994.070510512Search in Google Scholar
Quijada-Garrido, I., et al., “Diffusion of Erucamide (13-cis-Docosenamide) in Isotactic Polypropylene”, Macromolecules, 29, 7164–7176(1996a)10.1021/ma951392aSearch in Google Scholar
Quijada-Garrido, I., et al., “Desorption of Erucamide Vapor in Vacuum from Erucamide/Isotactic Polypropylene Films”, Macromolecules, 29, 8791–8797(1996b)10.1021/ma961065iSearch in Google Scholar
Reynier, A., et al., “Diffusion Coefficients of Additives in Polymers. I. Correlation with Geometric Parameters”, J. Appl. Polym. Sci., 82, 2422–2433(2001a)10.1002/app.2093Search in Google Scholar
Reynier, A., et al., “Additive Diffusion Coefficients in Polyolefins. II. Effect of Swelling and Temperature on the D = f(M) Correlation”, J. Appl. Polym. Sci., 82, 2434–2446(2001b)10.1002/app.2094Search in Google Scholar
Schwarz, T., et al., “Measurement of Diffusion of Antioxidants in Isotactic Polypropylene by Isothermal Differential Thermal Analysis”, J. Appl. Polym. Sci., 37, 3335–3341(1989)10.1002/app.1989.070371206Search in Google Scholar
Spatafore, R., Pearson, L. T., “Migration and Blooming of Stabilizing Antioxidants in Polypropylene”, Polym. Eng. Sci., 31, 1610–1617(1991)10.1002/pen.760312209Search in Google Scholar
Wakabayashi, M., et al., “A New Bleeding Model of Additives in a Polypropylene Film under the Atmospheric Pressure”, 22nd Annual Meeting of the Polymer Processing Society (2006)Search in Google Scholar
Wakabayashi, M., et al., “New Bleeding Model of Additives in a Polypropylene Film under Atmospheric Pressure”, J. Appl. Polym. Sci., 104, 3751–3757(2007a)10.1002/app.25922Search in Google Scholar
Wakabayashi, M., et al., “New Bleeding Model of Additives in a Polypropylene Film under Atmospheric Pressure II”, J. Appl. Polym. Sci., 106, 1398–1404(2007b)10.1002/app.26723Search in Google Scholar
Wakabayashi, M., et al., “A New Bleeding Process of Additives in a Polypropylene Film under the Atmospheric Pressure”, Polymer Processing Society Europe/Africa Regional Meeting (2007)10.1002/app.25922Search in Google Scholar
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