Isothermal thermogravimetric degradation of poly(vinyl chloride)/chlorinated polyethylene blends stabilized with Ca/Zn stabilizer

被引：0

作者：

Stipanelov-Vrandecic, N.

Klaric, I.

机构：

[1] Kemijsko-Tehnološki Fakultet, Split, Croatia

[2] Kemijsko-Tehnološki Fakultet, Zavod za Organsku Kemijsku Tehnologiju, Teslina 10/V, HR-21000 Split, Croatia

来源：

Polimeri (Zagreb) | 2000年 / 21卷 / 06期

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摘要：

The thermal degradation of poly(vinyl chloride)/chlorinated polyethylene (PVC/PE-C) blends of different compositions and the influence of physiologically harmless Ca/Zn stabilizer on the thermal stability of the blends were investigated by means of isothermal thermogravimetry. The nonstabilized and stabilized PVC+PE-C blends were degradated in the thermobalance, at the temperature of 240, 250, 260 and 270°C in inert atmosphere. In the investigated temperature range, PVC dehydrochlorinates completely and PE-C partially. The kinetic parameters of isothermal degradation were calculated with the help of the Flynn and Prout-Tompkins equations. The apparent activation energy and preexponential factor show compensation dependence in a certain range of conversion, depending on blend composition.

引用

页码：179 / 185

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