Material Analysis
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PPO Microwave Tray Application
Fenómeno del problema
【Problem Phenomenon】Microwave-heated food trays need heat resistance, dimensional stability and transparency
Análisis de la causa
PPE/HIPS's high heat deflection temperature is suitable for microwave packaging; for transparency requirements, use PPE blended with pure PS without rubber phase grades (Noryl TN300), which can be safely microwave heated
Solución
Select PPE/PS transparent grades for microwave trays; verify heat deflection temperature according to heating conditions; confirm food contact compliance; after adjustment, continuously sample to verify the effect, and resume mass production after confirming stability
Conclusión clave
PPO transparent grades make microwave trays, meeting both heat resistance and transparency; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence; include this case in the defect archive as a troubleshooting reference for subsequent similar problems
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