The influence of Ni-containing polymer-silicate filler on the technological properties of polypropylene is presented. It was found that the introduction of silicate fillers modified by polyvinyl alcohol change the flow patterns of polypropylene melts, in particular viscosity increases and anomalous viscosity shifts. The change of thermomechanical curves of polypropylene under the action of modified silicate fillers is shown.
Viscoelastic properties of amine-cured epoxytitania composites were investigated. The composites were synthesized by the sol-gel method and analysis of their physico-mechanical properties indicated that higher TiO2 content causes the decrease in glass transition temperature of the composites. Non-linear change of crosslink density with a filler content was observed.
The ability of polymers and composites on their basis to be processed in the viscous fluid state, the choice of rational methods and technological parameters of the processes of processing are largely determined by their technological properties.
На підставі рентгеноструктурного аналізу встановлено вплив Ni-вмісного модифікованого полівініловим спиртом полімер-силікатного наповнювача на структуру (ступінь кристалічності, усереднений розмір кристалітів) розроблених термопластичних композитів на основі поліпропілену.
The paper describes some approaches for thermal analysis of nano-composites by finite element method.
The essential effect of the nature and the content of the fine-grained modified polyvinylpyrrolidone magnesium hydrosilicate on the degree of crystallinity and crystallite sizes of polypropylene was established. This effect is caused by the change in the structural formations at the phases interface and by the nature of intermolecular interactions. Fine-grained particles of the modified magnesium hydrosilicate act as the additional centers of crystallization within the polymer composite material.