Material Drying
2 views
Degradation producing lactic acid smell during PLA '2079851475616104452
Problem Phenomenon
An acidic pungent odor (lactic acid smell) is produced during the '2079851475616104452 process.
Cause Analysis
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.
Solution
Fully dry to moisture <0.025% (250ppm); control the processing temperature at 170-200°C; strengthen workshop ventilation.
Key Takeaway
PLA hydrolysis degradation producing lactic acid smell is a processing environment problem.
Was this helpful?
0 people found this helpful
Thank you for your feedback!