Injection Molding
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Crystallization control during PLA '2079851475616104452
Problem Phenomenon
The processing conditions of amorphous and crystalline PLA differ greatly, causing quality problems.
Cause Analysis
The crystallization rate of PLA is slow (compared with PET), and the mold temperature and time need to match the crystallization requirements.
Solution
Use 20-40°C mold temperature for amorphous PLA; use 80-120°C mold temperature for crystalline PLA and extend the holding and cooling time.
Key Takeaway
The process difference of PLA crystallization control is the key to quality.
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