Molding Process
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Insufficient CO₂ barrier of PLA carbonated beverage bottles
Fenómeno del problema
The CO₂ permeability of PLA bottles is high, and the gas loss of carbonated beverages is fast.
Análisis de la causa
The barrier properties of PLA to CO₂ and O₂ are both inferior to PET, with high gas permeability.
Solución
Use PLA composite barrier layers; nano fillers increase the path tortuosity.
Conclusión clave
The barrier property of PLA is a technical obstacle to beverage bottle applications.
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