The Investigation of Thermal Properties of Nanocomposite Polymer Materials Based On Renewable Resources

Abstract

Environmental friendliness and functionality have made biopolymers one of the most interesting materials today. In order to broadening their application, there is need for improving their poor mechanical and thermal properties by using reinforce effect of inorganic nanoparticles. In this paper, thermal properties of nanocomposites based on poly(lactide) (PLA) and silicon dioxide were investigated using the differential scanning calorimetry (DSC). The obtained results showed that the addition of nanoparticles causes a change in the values of melting and crystallization temperatures of nanocomposites. Significant influence on the glass transition temperature was not observed.

Ekološka prihvatljivost i funkcionalnost biopolimera učinila ih je jednima od najtraženijih materijala današnjice. Njihovu veću primenu ograničavaju slaba mehanička i toplotna svojstva. Kako bi se poboljšala primenska svojstva biopolimera oni se kombinuju sa neorganskim česticama gradeći nanokompozite. U ovom radu ispitivana su toplotna svojstva nanokompozita na osnovu poli(laktida) (PLA) i silicijum(IV)oksida. Dobijeni rezultati su pokazali da dodatak nanočestica dovodi do promene temperature topljenja, porasta temperature kristalizacije, pri čemu nije uočen značajan uticaj nanočestica na temperaturu prelaska u staklasto stanje nanokompozita poli(laktida).