Material Analysis
12 görüntüleme
Performance decline after the use of PLA recycled material
Sorun Belirtisi
After adding recycled material, the impact strength and transparency of PLA products drop significantly.
Neden Analizi
PLA is sensitive to heat history, and the molecular weight decreases after multiple processing; the lactic acid produced by degradation lowers the pH value and catalyzes further degradation.
Çözüm
Control the recycled material ratio ≤20%; fully dry the recycled material; add a chain extender to restore the molecular weight.
Temel Çıkarım
PLA is sensitive to heat history, and recycling management is particularly important.
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