Molding Process
15 مشاهدة
Incomplete thermal imidization
ظاهرة المشكلة
The imidization degree of PI is lower than the target value and performance is substandard
تحليل الأسباب
Final heat treatment temperature not high enough or time insufficient; PAA film/product too thick, internal temperature uneven
الحل
Ensure the final treatment temperature is ≥300°C and hold for a sufficient time; confirm the imidization characteristic peaks by IR spectroscopy (1780/1720/1380 cm⁻¹); control the sample thickness
الخلاصة الأساسية
The imidization degree (imidization rate) determines the final performance of PI
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