Исследование межфазного взаимодействия в магнитополимерных композитах на основе эпоксидной смолы и наночастиц железа
Аннотация
Relaxation transitions in epoxy composites have been studied via differential scanning calorimetry. Identification of relaxation transitions with elements of polymeric chain was carried out. Also, the effect of the magnetic filler in epoxy matrix on the glass-transition temperature have been studied. The results of the relaxation transition temperature of the unfilled composites were compared with the results of magnetically filled composites. It was shown that relaxation-transition temperature in magnetically filled composites lower than in unfilled epoxy composites.
The interfacial interaction between epoxy resin and magnetic nanofiller was studied via isothermal microcalorimetry. It was found that good interfacial interaction were observed in composites with wt 20-30%. In this range were shown the formation of energetically favorable adhesion contacts of epoxy resin with the surface of nanoparticles.
Microencapsulation of iron nanoparticles with epoxy resin shell was carried out. The resulting microcapsulated particles were certified via physicochemical methods. The interfacial interaction between encapsulated iron particles and various polymeric matrices was studied by isothermal calorimetry. It was found that microencapsulation of nanoparticles worsens interfacial interaction between polymeric matrix and magnetic filler.
The interfacial interaction between epoxy resin and magnetic nanofiller was studied via isothermal microcalorimetry. It was found that good interfacial interaction were observed in composites with wt 20-30%. In this range were shown the formation of energetically favorable adhesion contacts of epoxy resin with the surface of nanoparticles.
Microencapsulation of iron nanoparticles with epoxy resin shell was carried out. The resulting microcapsulated particles were certified via physicochemical methods. The interfacial interaction between encapsulated iron particles and various polymeric matrices was studied by isothermal calorimetry. It was found that microencapsulation of nanoparticles worsens interfacial interaction between polymeric matrix and magnetic filler.