Material Analysis
11 조회수
PESU Membrane Material Solvent Selection
문제 현상
【Problem Phenomenon】In PESU ultrafiltration membrane preparation, traditional solvents face great environmental pressure, and the process needs upgrading
원인 분석
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
해결 방법
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
핵심 요약
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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