Material Drying
5 görüntüleme
Bubbles in PLA '2079851475616104452 after moisture absorption
Sorun Belirtisi
Bubbles appear on the surface and inside of PLA products.
Neden Analizi
PLA has strong hygroscopicity; when drying is insufficient, the moisture content is high (>500ppm), and water vapor produces bubbles during processing.
Çözüm
Drying conditions: 60-80°C/4-6h (amorphous grade) or 80-100°C/2-3h (crystalline grade) to moisture <250ppm.
Temel Çıkarım
The hygroscopicity of PLA is the first obstacle to processing quality.
Bu faydalı oldu mu?
0 kişi bunu faydalı buldu
Geri bildiriminiz için teşekkürler!