Development of Robust Tri-Bore Hollow Fiber Membranes for the Control of Dissolved Oxygen in Water

Tri-bore hollow fiber (HF) membranes with a triangular outer geometry were fabricated from polyvinylidene fluoride (PVDF) and explored for water deoxygenation. The representative membranes were hydrophobic and porous as seen from the contact angle of 94o and the porosity of 75%. The maximum load, elongation at break and the tensile stress of the tri-bore HF membranes were 3.90 N, 37.81% and 1.27 MPa