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Determination of the kinetic parameters of polyvinylchloride

I. Dehydrochlorination at low conversions

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Abstract

Kinetic equations proposed in the literature for thermal decomposition reactions may be approximated at low conversions by the relation: αb=Dp(x). This equation reveals three kinds of behaviour under isothermal conditions, as evidenced in the thermal dehydrochlorination of Polyvinylchloride. The kinetic parameters were determined with a computing program and its performances were tested. The calculation method was applied to some Polyvinylchloride macromodels.

Zusammenfassung

In der Literatur vorgeschlagene kinetische Gleichungen für thermische Zersetzungsreaktionen können bei niedrigen Konversionen mit der Gleichung αb=Dp(x) genähert werden. Diese Gleichung offenbart unter isothermen Bedingungen drei Verhaltensweisen, wie an der thermischen Dehydrochlorierung von Polyvinylchlorid bewiesen wird. Die kinetischen Parameter wurden mittels eines Computerprogrammes ermittelt und ihre Leistungsfähigkeit überprüft. Das Rechenverfahren wurden an einigen Polyvinylchloridmakromodellen getestet.

Резюме

Кинетические уравне ния, предложенные в литературе для реакц ий термического разложения, могут быт ь при низкой степени п ревращения описаны уравнениемα b=Dp(x). Это уравнение показывае т три различных харак тера термического поведе ния в изотермических условиях, как это было доказано на примере термического дегидр охлорирования полив ияилхлорида. Кинетические параме тры были определены с помощью математической прог раммы, действие которой был о испытано. Метод расч ета был применен для некотор ых макромоделей поливинилхлорида.

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Agherghinei, I., Airinei, A., Buruiană, E.C. et al. Determination of the kinetic parameters of polyvinylchloride. Journal of Thermal Analysis 35, 1669–1678 (1989). https://doi.org/10.1007/BF01912941

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  • DOI: https://doi.org/10.1007/BF01912941

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