Search academic texts

Information × Registration Number 0220U000699, 0119U001540 , R & D reports Title Formation of spatially structured polymer composites of functional purpose with application of additive technologies popup.stage_title Head Biloshenko Viktor Oleksandrovych, Доктор технічних наук Registration Date 14-12-2020 Organization Donetsk Institute of Physics @ Engineering named after O.O.Galkin NAS of Ukraine popup.description2 The object of research is the process of modifying the structure and properties of polymeric materials of various architectures using additive technologies. The goal of the project is to develop scientific approaches to the creation of new functional polymeric materials using the method of layer-by-layer melt deposition. Research methods - scanning electron microscopy, differential scanning calorimetry, dynamic mechanical analysis, static bending, tensile and uniaxial compression tests, retention tests, computer simulation. A method has been developed for manufacturing multilayer fine-fiber filter materials (FM) from a polypropylene / copolyamide (PP / CPA) mixture using 3D printing, which makes it possible to improve the properties of filters and expand the range of their application in comparison with those obtained by the extrusion method. Scientifically grounded recommendations have been developed for the implementation of the technological process of manufacturing nanofilled polymer filter materials with an increased level of functional properties. Samples of spatially structured polymer composites of various internal architectures were made using matrices of different degrees of rigidity (based on thermoplastic polyurethane) and filler (epoxy polymer). Differences between the static and dynamic mechanical characteristics of the samples under study were established depending on the shape of the cells, the direction of load application, and the ratio of the stiffness of the matrix and filler. A mathematical model of bending of a beam with a mesostructure is proposed, which allows describing various mechanisms of its destruction. The results obtained form the basis for the development of scientific approaches to the creation of new functional polymeric materials with an improved or qualitatively new complex of properties using additive technologies. Product Description popup.authors Бейгельзімер Я.Ю. Дмитренко В.Ю. Сова Н.В. Чишко В.В. popup.nrat_date 2022-03-09 Close