Production & Quality
6 مشاهدة
Yellowing of Natural-Color PBT Products During Storage
ظاهرة المشكلة
White or natural-color PBT products turn yellow after being stored in the warehouse for several months.
تحليل الأسباب
The antioxidants in PBT are gradually consumed, and oxygen and ultraviolet rays in the air slowly oxidize it, causing yellowing; high storage temperature accelerates this.
الحل
Use a high-efficiency antioxidant formulation; store sealed away from light; control the storage temperature <30°C.
الخلاصة الأساسية
PBT yellowing during storage is the result of slow oxidation.
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