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PBN flow mark problem in injection processing
Problembeschreibung
Polybutylene naphthalate PBN shows flow mark in injection processing at 270-300°C.
Ursachenanalyse
Hydrolysis under high-temperature processing at 270-300°C triggers the problem.
Lösung
Solved by nitrogen protection.
Wichtigste Erkenntnis
PBN ultra-high-temperature processing requires comprehensive protection.
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