Material Drying
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PLA products soften in humid environments
Fenómeno del problema
In high humidity environments, PLA products absorb moisture, soften, and plasticize.
Análisis de la causa
PLA contains ester bonds; after absorbing water, a plasticizing effect occurs and the Tg decreases; the higher the humidity, the more severe the softening.
Solución
Avoid use in high humidity environments; surface waterproof coating treatment.
Conclusión clave
PLA has insufficient stability in high humidity environments.
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