Naslov
Thermogravimetric investigation of volatility of dioctyl phthalate from plasticized poly(vinyl chloride)

Autori
Mrklić, Željko ; Kovačić, Tonka

Izvornik
Thermochimica acta (0040-6031) 322 (1998), 2; 129-135

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
plasticized poly(vinyl chloride); dioctyl phthalate; volatility; kinetic parameters; isothermal thermogravimetry

Sažetak
The process of volatilization of dioctyl phthalate(DOP) plasticizer from plasticized poly(vinyl chloride) (PVC) folies was studied by the method of isothermal thermogravimetry in the temperature range of 120-150^C. The investigated samples contained 10.15 to 37.11 wt% of DOP. The rate constants of the process of plasticizer volatilization were calculated and the dependence of rate constant on the initial concentration of plasticizer in plasticized PVC and on temperature were mathematically defined. The concentration dependence is expresed by parameters k_0 and q. The activation energy of the process was calculated from the exponential dependence of the rate constant of volatilization on temperature.

Izvorni jezik
Engleski

Znanstvena područja
Kemijsko inženjerstvo

POVEZANOST RADA