Material Analysis
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Thermal decomposition, products yellow and blacken
Problembeschreibung
Product color turns yellow and black accompanied by HCl pungent odor
Ursachenanalyse
PVC starts to decompose at >140C, accelerated without stabilizer
Lösung
Add organotin or Ca/Zn stabilizer, strictly prohibit over-temperature, limit residence
Wichtigste Erkenntnis
PVC heat sensitivity is the primary processing problem
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