Naslov
Kinetic analysis of the non-isothermal degradation of PEO nanocomposites

Autori
Erceg, Matko ; Makrić, Jagoda ; Kovačić, Tonka

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
14th European Conference on Composite Materials_Proceedings / - Budimpešta : Budapest University of Technology and Economics, 2010, 1-10

ISBN
978-963-313-008-7

Skup
14th European Conference on Composite Materials

Mjesto i datum
Budimpešta, Mađarska, 07.06.2010. - 10.06.2010

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
Kinetic analysis ; Nanocomposites ; Non-isothermal degradation ; Poly(ethylene oxide)

Sažetak
Poly(ethylene oxide)/organically modified montmorillonite (PEO/30B) nanocomposites were prepared by solvent casting method and non-isothermally degraded in the temperature range 50-500°C at four heating rates (2.5 ; 5 ; 10 and 20°C/min) in nitrogen atmosphere. The obtained results indicate that 30B has slight beneficial influence on the thermal stability of PEO. The most pronounced effect has the addition of 5 wt.% of 30B. The invariant kinetic parameters (IKP) method in combination with isoconversional Flynn-Wall-Ozawa (FWO) and Friedman (FR) methods was used to calculate the empirical kinetic triplets (E, A and f(a)) for the non-isothermal degradation of pure PEO and PEO/30B nanocomposites. Rate constants (k) were also calculated. Nanocomposite with 5 wt.% of 30B shows the lowest k value.

Izvorni jezik
Engleski

Znanstvena područja
Kemijsko inženjerstvo

POVEZANOST RADA