The research presents the effect of the formic acid concentration on the morphology of polyamide 6 membrane prepared using method of changing phase states of the polymer solution (immersion precipitation). Morphological structure of polymer directly determines its permeability and filtration abilities as well as mechanical properties. Morphology of the 6 membranes prepared using different content and concentration of formic acid was investigated via Scanning Electron Microscope and revealed that variation of polymer solution composition leads to formation of open-celled structure for solutions with low intensity of dissolving and closed pore structures for solutions with high intensity of dissolving.
F.02 Acquisition of new scientific knowledge
COBISS.SI-ID: 14981915Within the project for localized and controlled deposition of medicine into human body, six different porous polyamide 6 (PA6) membranes were prepared by phase separation in precipitation bath of deionized water. Membranes were characterised in terms of structure, morphology, filtration abilities and mechanical properties. It was found that prepared membranes are in the group of nanofiltration and reverse osmosis in respect to their permeability. The differences between the membranes with different concentrations of PA6 in solution and similar intensity of dissolving are detected at all characteristic tests, however the effect of intensity of dissolving is more pronounced.
F.02 Acquisition of new scientific knowledge
COBISS.SI-ID: 14884123