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Labthink Instruments Co., Ltd.
Group: Labthink
Catalog excerpts
Labthink Instruments Co., Ltd. info@labthink.com +86-531-85068566" Barrier Property Comparative Study of Different Aluminum Coated Films This study investigates the impact of substrate material on the oxygen barrier properties of metallized films (films with a thin layer of aluminum deposited on them). The focus is on comparing VMPET (aluminum-coated PET) and VMBOPP (aluminum-coated BOPP) with similar thicknesses. Traditional aluminum foil offers excellent oxygen barrier but is expensive. Aluminized films provide a cost-effective alternative with good barrier properties, but their effectiveness can vary depending on factors like the substrate material. The study uses a coulometric sensor method with an instrument called the C230G Oxygen Transmission Rate Test System. This method measures the rate at which oxygen permeates through the film (lower rate indicates better barrier). The experiment compares VMPET and VMBOPP samples with similar thicknesses. Testing Instrument is Labthink C230G Oxygen Transmission rate test System. Wide range of packaging materials including films, plastic-metal composites, bottles, cups, and lids.Conforms to various Chinese and international standards. The result shows that VMBOPP specimens showed an average OTR
Open the catalog to page 1
Labthink Instruments Co., Ltd. info@labthink.com +86-531-85068566 of 53.4515 cm3/(m2· day). VMPET specimens showed a significantly lower average OTR of 1.0202 cm3/(m2· day). In conclusion, the test confirms that VMPET has superior oxygen barrier properties compared to VMBOPP, likely due to the inherent barrier properties of PET being better than BOPP. The coulometric sensor method with the C230G system provides a simple, reliable, and repeatable way to assess oxygen barrier properties in packaging materials. More oxygen and water vapor transmission rates testers adopting various test method...
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
