Model-free kinetics analysis of thermal degradation of polysiloxane lubricant

Summary: The object of this study was to investigate the thermal stability and degradation kinetics of polysiloxane material used as lubricant in the die casting process of aluminium alloys. The degradation of dried polysiloxane emulsion was studied by thermal gravimetric analysis (TGA) using nitrog...

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Permalink: http://skupni.nsk.hr/Record/nsk.NSK01000736487/Details
Matična publikacija: Chemical and biochemical engineering quarterly
23 (2009), 4 ; str. 493-496
Glavni autor: Mohorič, I. (-)
Ostali autori: Krajnc, Matjaž (-), Šebenik, U.
Vrsta građe: Članak
Jezik: eng
Predmet:
Online pristup: Chemical and Biochemical Engineering Quarterly
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100 1 |a Mohorič, I. 
245 1 0 |a Model-free kinetics analysis of thermal degradation of polysiloxane lubricant /  |c I. Mohorič, M. Krajnc, U. Šebenik. 
504 |a Bibliografija: 20 jed 
520 8 |a Summary: The object of this study was to investigate the thermal stability and degradation kinetics of polysiloxane material used as lubricant in the die casting process of aluminium alloys. The degradation of dried polysiloxane emulsion was studied by thermal gravimetric analysis (TGA) using nitrogen atmosphere. Several non-isothermal experiments at different heating rates and isothermal experiments were performed. The isoconversional kinetic analysis using the integral procedure was applied to the non-isothermal TGA results. The apparent activation energy was calculated by the Flynn-Wall-Ozawa method as a reliable way of determining the kinetics parameters. Based on the determined apparent activation energy isothermal degradation behavior of the lubricant at different temperatures was predicted. The efficiency of the predictions was verified and confirmed by isothermal TGA experiments 
653 0 |a Kinetika razgradnje  |a Polisiloksan  |a Toplinska gravimetrijska analiza 
700 1 |a Krajnc, Matjaž 
700 1 |a Šebenik, U. 
773 0 |t Chemical and biochemical engineering quarterly  |x 0352-9568  |g 23 (2009), 4 ; str. 493-496  |w nsk.(HR-ZaNSK)000004762 
981 |b B03/09 
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856 4 2 |u http://hrcak.srce.hr/cabeq  |y Chemical and Biochemical Engineering Quarterly