Material Drying
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Degradation producing lactic acid smell during PLA '2079851475616104452
Fenómeno del problema
An acidic pungent odor (lactic acid smell) is produced during the '2079851475616104452 process.
Análisis de la causa
PLA hydrolyzes and degrades in the presence of high temperature and moisture to produce lactic acid and oligomers, and high processing temperature aggravates the degradation.
Solución
Fully dry to moisture <0.025% (250ppm); control the processing temperature at 170-200°C; strengthen workshop ventilation.
Conclusión clave
PLA hydrolysis degradation producing lactic acid smell is a processing environment problem.
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