Development of a coating technique for the internal structure of polypropylene microfiltration membranes

A novel method of coating hydrophobic polyolefinic microfiltration (MF) membranes to produce a more hydrophilic membrane has been developed. A modified interfacial polymerization technique was used to coat the internal surface of a polypropylene (PP) membrane (about: 1.1μm pore size, 84% void volume, 84μm thick). 1,8-octanediamine (selected from several possible diamines) is dried onto the membrane internal surface from methanol and then …