Material Analysis
13 مشاهدة
PESU Membrane Material Solvent Selection
ظاهرة المشكلة
【Problem Phenomenon】In PESU ultrafiltration membrane preparation, traditional solvents face great environmental pressure, and the process needs upgrading
تحليل الأسباب
PESU/PSU are mainstream support materials for UF/MF membranes and NF/RO composite membranes, traditional solvents such as NMP have environmental toxicity problems; research has verified that water-soluble green solvents such as Rhodiasolv Polarclean can replace them
الحل
Evaluate green solvent substitution process routes; readjust the casting solution formulation according to the new solvent system; perform rejection rate and flux comparison verification for membrane performance; after adjustment, continuously sample to verify the effect, confirm stability before resuming mass production
الخلاصة الأساسية
Green solvent substitution for PESU membranes is now feasible, formulation readjustment plus performance verification; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence; include this case in the defect archive as a reference for troubleshooting similar problems in the future
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