Material Drying
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PESU Chemical Resistance and Sterilization Advantages
Problem Phenomenon
【Problem Phenomenon】Material selection for disinfectant-contact parts in medical environments, PSU chemical resistance is insufficient
Cause Analysis
PESU resists hospital solvents and disinfectants better than PSU, stable at pH1-14, can withstand 121℃ steam or 134℃×30 minutes×100 high-pressure steam cycles with small performance loss; hydrolysis stability is excellent
Solution
Choose PESU for disinfectant-contact and high sterilization cycle parts; check the medium according to the pH1-14 range; perform life verification for sterilization cycle counts; after adjustment, continuously sample to verify the effect, confirm stability before resuming mass production
Key Takeaway
PESU excels in both chemical resistance and sterilization, endorsed by pH1-14 and 100 steam cycles; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence
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