Material Analysis
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Uneven pore size of hollow fiber membranes
Problem Phenomenon
The membrane fiber pore size distribution is wide and the filtration accuracy is poor
Cause Analysis
The casting solution composition is not uniform and the phase inversion conditions fluctuate
Solution
Polymer concentration 12-18%, coagulation bath 20-40C, constant temperature and humidity
Key Takeaway
Membrane pore size uniformity is the key to membrane performance
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