This paper investigates the effects of several parameters on the permeability measurement of LLDPE film used to package food. Measure ments were obtained using an OX-TRAN** 10/50 oxygen permeation instru ment. Permeability was higher in older film, increased with temperature and decreased under particular conditions with repeated testing. These results con firmed that careful procedures and sampling control are required to obtain reliable results and to optimize experimental effort.
ASTM.1981. "Standard Test Method for Oxygen Gas Transmission Rate through Plastic Film and Sheeting Using a Coulometric Sensor", in Annual Book of ASTM Standards, Designation D3985-81, Section 15, Philadelphia, PA: American Society for Testing and Materials, Vol. 15.09, p. 620.
2.
Ashley, R.J.1985. "Permeability and Plastics Packaging", in Polymer Permeability , J. Comyn, ed., Barking , England: Elsevier Applied Science Publishers Ltd ., p. 289.
3.
Modern Controls, Inc.1983. " Operating Manual for the OX-TRAN 10/50 Oxygen Permeability Tester", Elk River, MN.
4.
Modern Controls, Inc.1983. " Technical Bulletin" #005-A, 50 cm2 and 5 cm2 Masking Correlations.
5.
Astm.1986. "Standard Specifications and Operating Instructions for Glass Capillary Kinematic Viscosimeters", in Annual Book of ASTM Standards, Designation D446-85a, Section 5, Philadelphia, PA: American Society for Testing and Materials, Vol. 5.01, pp. 244-262.
6.
Cheremisinoff, N.1989. New Polymeric and Elastomeric Product Development. Lancaster, PA: Technomic Publishing Co., Inc., Section 2, p. 26.
7.
Kurata, M. and Y. Tsunashima.1989. "Viscosity-Molecular Weight Relationships and Unperturbed Dimensions of Linear Chain Molecules," in Polymer Handbook , 3rd Edition, J. Brandrup and H. Immergut, eds., New York: John Wiley & Sons, Inc. , p. VII/6.
8.
Pauly, S.1989. "Permeability and Diffusion Data", in Polymer Handbook , 3rd Edition, J. Brandrup and E. H. Immergut, eds., New York: John Wiley & Sons, Inc. , pp. VI/435-437.
9.
Moisan, J.Y.1985. "Effects of Oxygen Permeation and Stabiliser Migration on Polymer Degradation", in Polymer Permeability, J. Comyn, ed., Barking, England: Elsevier Applied Science Publishers Ltd., p. 128.
10.
Olson, G.1994. Personal communication.
11.
Ashley, R.J.1985. "Permeability and Plastics Packaging", in Polymer Permeability , J. Comyn, ed., Barking , England: Elsevier Applied Science Publishers Ltd ., p. 287.
12.
Delassus, P.T.1979. J. Vinyl Technology, 1:14-19.
13.
Gilroy, H.M.1979. "Long-Term Photo- and Thermal Oxidation of Polyethylene" , in Durability of Macromolecular Materials,R. K. Eby, ed., ACS Symposium Series 95, Washington, DC, p. 68.
