Molding Process
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Decay after corona treatment of PLA film
Fenómeno do problema
The surface tension of PLA film decreases rapidly with time after corona treatment.
Análise das causas
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.
Solução
Use higher corona power and treatment time; perform subsequent processing (printing, laminating) as soon as possible after treatment.
Conclusão principal
PLA corona decays quickly, and the production rhythm needs to be reasonably arranged.
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