Material Analysis
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Contradiction between shelf life and degradation of PLA packaging materials
Fenómeno del problema
The packaging is required to have a shelf-life function but also needs to degrade under certain conditions.
Análisis de la causa
The time coordination between the functional period and the degradation period (no degradation within the shelf life, premature degradation).
Solución
Control the degradation initiation timing through material design (barrier layer, additives).
Conclusión clave
The dual requirements of PLA function and degradation are a technical challenge.
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