Material Drying
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PPO PPX Grade Low-Temperature Process
Problem Phenomenon
【Problem Phenomenon】PPO/PP alloy PPX grades processed according to the high-temperature process show material degradation and discoloration
Cause Analysis
NORYL PPX is a PPO/PP alloy, drying 65-75℃×2-4h, mold temperature 40-65℃, melt 260-300℃; the PP component determines its low-temperature process window, and high-temperature processing causes degradation
Solution
Execute PPX with 65-75℃ drying and 40-65℃ mold temperature; melt must not exceed 300℃; purge according to PP procedures; after adjustment, continuously sample to verify the effect, and resume mass production after confirming stability
Key Takeaway
PPX is a PP alloy low-temperature material, 65-75℃ drying and 40-65℃ mold temperature; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence
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