Material Analysis
13 مشاهدة
Additive Precipitation of PBT
ظاهرة المشكلة
After long-term storage of PBT products, white powdery precipitates appear on the surface.
تحليل الأسباب
Additives (slip agents, antioxidants, etc.) have limited solubility in the matrix and migrate to the surface over time and precipitate (blooming).
الحل
Control the amount of additives within the solubility range; use high molecular weight additives to reduce the migration rate.
الخلاصة الأساسية
PBT precipitates affect appearance and electrical properties.
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