Material Analysis
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POM regrind recycling degradation
Fenómeno del problema
POM regrind degrades severely after multiple mechanical recyclings and cannot be used.
Análisis de la causa
Repeated processing thermal history of POM causes continuous release of formaldehyde and a sharp decrease in molecular weight.
Solución
Strictly control the number of times the regrind is used (no more than 2 times); add formaldehyde scavengers and stabilizers.
Conclusión clave
POM recycling is limited.
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