Nanotechnology and nanomaterials

The influence of physical fields on the physical properties of epoxy composites
Y. Bardadym1, E. Sporyagin2
1 Institute of Macromolecular Chemistry of NAS of Ukraine Kiev, Ukraine
Kharkiv highway, 48, Kyiv-160, 02160, Ukraine
E-mail: ferocen@i.ua
2 Oles Honchar Dnipro National University
Kazakova str. 22, Dnipro, 49050, Ukraine

The use of computer simulation plays an important role along with experimental research methods. Modeling using digital computers is one of the most powerful means of research. It enables to calculate and simulate experiments at the design stage. 
Therefore, this work is devoted to the study of the effect of external permanent magnetic or electric fields on the structure, thermophysical, dielectric properties of epoxy polymers and their composites containing metal oxide and polyaniline. Samples of composites were formed from epoxy resin ED-20, and triethylenetetramine. Powder cadmium oxide and polyaniline were used as fillers. The content of metal oxide was 3 vol. % and polyaniline – 1 vol. %. Samples of composites were subjected to curing with different conditions. The influence of constant magnetic and constant electric fields was 2·105 A/m and 1.5·104 V/m respectively. System studies of structure and physical properties of composites filled with diamagnetic or paramagnetic metal oxides formed under the influence of external constant physical fields were carried out. Patterns of connection between the structure and the physical and mechanical properties of epoxy composites were first established. This makes it possible to purposefully influence external physical fields on the process of solidification of composites in order to obtain materials with a certain complex of functional properties. The ideas of constructing mathematical models and mechanisms of the influence of permanent magnetic and electric fields on epoxy polymers and their composites containing metal oxides and polyaniline have been developed. Based on the results obtained, the method of calculating an electromagnet and a cylindrical capacitor using the software «Elcut» has been improved. 
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