Material Drying
6 مشاهدة
PETG regrind performance degradation
ظاهرة المشكلة
After adding PETG crushed regrind, the impact strength and transparency of new products decrease significantly.
تحليل الأسباب
The regrind undergoes multiple thermal histories and molecular chains degrade, crushing produces dust, and increased moisture absorption increases hydrolytic degradation.
الحل
Control the regrind ratio ≤30%; use after full drying; add antioxidant and stabilizer during pelletizing.
الخلاصة الأساسية
PETG reuse requires controlling the ratio and performing stabilization treatment.
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