Tensile properties of the PA6 membranes prepared by the immersion precipitation are addressed in this professional conference contribution. Mechanical properties as well as morphology of the membrane represent one of the important parameters of a drug delivery system. While more details are provided in the scientific article (COBISS ID 16094747), this oral presentation was focused on tensile mechanical properties only. These properties are important for handling purposes, further treatment of the membrane and their durability. It has been shown that the amount of PA6 in the solution determines mechanical properties of the membrane. Additionally, indications of the maximum of mechanical properties (elastic tensile modulus and strength) were observed. Danubia Adria Symposiums unite engineers from all countries between the Adriatic coast and Danube region. Events are focused on: • highlighting latest innovations, R&D and industrial activities in area of experimental methods in mechanics; • providing forum for discussion of the latest research results, new developments of concepts and technologies, proven techniques, as well as practical applications and standardization of the experimental methods in mechanics.
B.03 Paper at an international scientific conference
COBISS.SI-ID: 16497947Within the entire research work, we studied how the concentration of PA6 / formic acid (MK) / deionized water affects the morphology, filtration properties and mechanical properties of the membranes. While more details are available in the scientific article (COBISS ID 16094747), this presentation of the poster focuses only on the morphology of the membranes. Using the SEM images we determined the structure and morphology of membranes made from solutions of polyamide 6 in formic acid of various concentrations. By varying the composition of the solution, the morphology changes from closed cell morphology to solutions with high intensities of PA6 dissolution in the solution to the open cell structure in solutions with a low dissolution intensity. It should be noted that the proportion of the polymer in the solution does not pronouncedly affect the morphology of the membrane compared to the intensity of dissolution of PA6 (concentration of formic acid) in the solution. The poster has been presented at the yearly conference Academy of engineering organized by Association of Mechanical Engineers of Slovenia. The event has important impact on engineering throughout academy and industry in the country.
B.06 Other
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.01 Acquisition of new practical knowledge, information and skills
COBISS.SI-ID: 14884123The report provides summary of the project “Electrospun nanofibrous materials for solid state drug delivery system”, which is focused on the determination of the technological parameters for repeatable production of nanoporous materials with a desired pore size distribution. The project considers two possible applications of the nanoporous materials: drug delivery and selective filtration. The report presents the basis for preparation of scientific paper.
F.02 Acquisition of new scientific knowledge
COBISS.SI-ID: 16499483