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Labthink Instruments Co., Ltd.
Group: Labthink
Catalog excerpts
Labthink Instruments Co., Ltd. info@labthink.com +86-531-85068566 Investigation of Film Thickness on Oxygen Barrier Performance PET layer plays an important role in oxygen barrier performance for the tested materials. To investigates the influence of film thickness on oxygen permeability in packaging materials, we tested three composite film specimens with different PET (polyethylene terephthalate) and PE (polyethylene) layer thicknesses. The test adopted a differential pressure method according to ASTM D1434, test instrument was Labthink VAC-V2 Gas Permeability Tester. We prepared specimens in different thickness, PET(12μm)/PE(45μm), PET(12μm)/PE(60μm) and PET(25μm)/PE(45μm). The instrument measures the Oxygen Transmission Rate (OTR), which signifies the amount of oxygen permeating through a film per unit area under specific conditions.
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Labthink Instruments Co., Ltd. info@labthink.com +86-531-85068566 The test result shows that OTR decreased with increasing thickness for both PET and PE layers. Thicker PET layer (Specimen #3) resulted in a more significant OTR reduction compared to a thicker PE layer (Specimen #2). PET layer plays a dominant role in oxygen barrier performance for the tested materials. Increasing PET thickness offers a more efficient way to improve oxygen permeability compared to increasing PE thickness. As the demand for functional packaging materials grows, testing methods are evolving to ensure a more...
Open the catalog to page 2All Labthink Instruments Co. catalogs and technical brochures
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Archived catalogs
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Leak Tester2 Pages
