Microstructural Control of PET Sheets Enhances Barrier Properties

By precisely tailoring the microstructure of PET films, the research team has successfully enhanced their barrier properties. Employing advanced nanoimprint lithography, they engineered ordered micro- and nanoscale structures on the film’s surface; these unique features effectively impede the permeation of gases and moisture. Test results show that the microstructured PET films exhibit oxygen‑ and water‑vapor‑barrier performance 40% and 35% higher, respectively, than conventional PET films. This breakthrough will help improve the performance of PET films in high-barrier packaging applications for food, pharmaceuticals, and other sensitive products.

Time:2025-08-19

By precisely tailoring the microstructure of PET films, the research team successfully enhanced their barrier properties. Employing advanced nanoimprint lithography, they engineered ordered micro- and nanoscale structures on the film’s surface; these specialized features effectively impede the permeation of gases and moisture. Test results show that the microstructured PET films exhibit oxygen and water vapor barrier performance 40% and 35% higher, respectively, than conventional PET films. This breakthrough is poised to improve the performance of PET films in high-barrier packaging applications for food, pharmaceuticals, and other sensitive products.

Keywords: Microstructural Control of PET Sheets Enhances Barrier Properties

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