Figure 5. (a) Measured thermal conductivity and (b) XRD of PTFE and PES membrane.
In Figure 6, the roughness of the PES hollow fiber membrane is higher than that of the PTFE hollow fiber membrane. The membrane surface with high roughness and possible cavity will be easier to generate the heterogeneous nucleation on the membrane surface. While, the increasing surface roughness may restrain the auto-detachment motion of nucleation from the membrane surface. This complex impact on the membrane performance should be validated in the MACC operation59.