Molding Process
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Decay after corona treatment of PLA film
Fenómeno del problema
The surface tension of PLA film decreases rapidly with time after corona treatment.
Análisis de la causa
The migration of surface active segments of PLA causes the corona effect to decay rapidly; the corona energy is insufficient and the treatment is inadequate.
Solución
Use higher corona power and treatment time; perform subsequent processing (printing, laminating) as soon as possible after treatment.
Conclusión clave
PLA corona decays quickly, and the production rhythm needs to be reasonably arranged.
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