Processing Machinery
5 görüntüleme
Poor thermal stability of transparent ABS (methyl methacrylate-acrylonitrile-butadiene-styrene copolymer) during processing
Sorun Belirtisi
Transparent ABS (methyl methacrylate-acrylonitrile-butadiene-styrene copolymer) has poor thermal stability during processing; performance decreases significantly after repeated processing, with severe degradation
Neden Analizi
Insufficient antioxidant addition or improper type
Processing temperature too high (exceeding the 210-250°C upper limit) accelerates degradation
Excessive screw shear accelerates thermo-oxidative degradation
Regrind ratio too high, degradation accumulates
Antioxidants fail at high temperature
Çözüm
Increase antioxidant addition amount
Reduce processing temperature to a reasonable value of 210-250°C
Reduce screw rotation speed to reduce shear
Reduce regrind ratio ≤15%
Select antioxidants with good high-temperature stability
Temel Çıkarım
Thermal stability needs to start from antioxidants and temperature control
Bu faydalı oldu mu?
0 kişi bunu faydalı buldu
Geri bildiriminiz için teşekkürler!