Projects / Programmes
Fizikalno kemijski pojavi na površinskih plasteh (Slovene)
January 1, 1999
- December 31, 2003
Code |
Science |
Field |
Subfield |
2.02.00 |
Engineering sciences and technologies |
Chemical engineering |
|
Code |
Science |
Field |
T150 |
Technological sciences |
Material technology |
T152 |
Technological sciences |
Composite materials |
T390 |
Technological sciences |
Polymer technology, biopolymers |
Researchers (20)
Organisations (1)
Abstract
I. STUDY OF PHENOMENA ON METAL SURFACES WITH EMPHASIS ON ELECTROCHEMICAL PROCESSES AND PHYSICOCHEMICAL PROPERTIES OF SURFACE LAYERS. Corrosion studies on steel PROKRON 1 to 4ex, differently heat-treated, in a model solution, with added chloride ions, by mean's of current noise and impedance, will be performed. Some results will be explained by our own electrochemical model. Corrosion research will be extended to steel used for concrete reinforcement with and without added inhibitors. II. PREPARATION OF IONOSELECTIVE ELECTRODES BY CHEMICAL TREATMENT OF THE METAL SURFACE. With a properly carried out chemical reaction on the metal surface an almost insoluble layer with sensorial properties forms. The research includes studies of new systems metal-surface layer and the application of such electrode-layer in flow-injection analysis (FIA) and their use in ecological research. III. STUDY OF SURFACES AND INTERPHASES OF COMPATIBILIZED POLYMER BLENDS AND TERNARY POLYMERIC COMPOSITES; MODIFICATION OF HETEROGENIC POLYMER WASTES. The question is concerned with the study of surfaces and interphases of compatibilized polymer blends and ternary polymer composites based on polyolefins. The aim is to produce polymeric materials of controlled morphology by improvement of properties. Polymer blends and composites will be prepared in the melt. The structural properties and morphology of compatibilized blends of isotactic polypropylene (PP) and polystyrene by WAXD, OM, TEM and SEM will be thoroughly investigated. The efficiency of block copolymer SEP as modifier of notched impact strength for PP in dependence of the composition of PP/SEP blends will be studied. In addition, the compatibilization efficiency of styrenic block copolymers of PP/wollastonite composites will be examined. The impact of irradiation on the compatibilization, structure, phase morphology and mechanical properties of the research composite systems will be followed. Moreover, the compatibilization of the polymeric wastes will be discussed. IV. MECHANISMS OF POLYMERIC ASYMMETRIC POROUS MEMBRANES FORMATION AND CHEMICAL MODIFICATION OF THEIR SURFACE; MEMBRANES APPLICATION FOR PORCINE BLOOD INGRADIENTS SEPARATION. Wet phase inversion is the most useful process for polymeric asymmetric porous membranes (PAPM) preparation. By this process morphologically very different polymeric membranes are formed. Mechanisms of their formation are still unclear. In the frame of our research we postulated some elementary processes which in different combinations lead to morphologically different membranes. By chemical modification of the PAPM surface we want to influence the concentration polarisation and fouling of the PAPM, the process which diminish the membrane's separation efficiency. Porcine blood ingredient separation is used for testing the effect of the membrane's surface modification. By covalent immobilisation of the enzymes and other bio-systems to the membrane surface, membranes used in biosensors and bioreactors are also prepared.
Most important scientific results
Final report
Most important socioeconomically and culturally relevant results
Final report