Effects of Metal Oxides on the Release Characteristic of HCl from the Combustion of Poly (vinyl chloride)

doi:10.19491/j.issn.1001-9278.2009.08.009

China Plastics ›› 2009, Vol. 23 ›› Issue (08): 39-42 .DOI: 10.19491/j.issn.1001-9278.2009.08.009

Effects of Metal Oxides on the Release Characteristic of HCl from the Combustion of Poly (vinyl chloride)

Received:2009-05-06 Revised:2009-06-03 Online:2009-08-26 Published:2009-08-26

Abstract

Abstract: Thermogravimetry and electric conductivity determinations were carried out to study the effects of metal oxides on the release characteristic of HCl from the combustion of PVC. It was found that the electric conductivity was linearly related to the concentration of HCl solution in the range of 0 ~ 5.5×10^-4moL/L. Zinc oxide (ZnO), ferric oxide (Fe₂O₃), copper oxide (CuO), and manganese dioxide (MnO₂) decreased the initiative temperature of PVC during thermal degradation, and shortened the initiative time of HCl releasing, and thus accelerated the HCl emission. In the other hand, titanium dioxide (TiO₂), molybdenum dioxide (MoO₂), and vanadium oxide (V₂O₅) increased the initiative temperature of PVC during thermal degradation, extended the initiative time of HCl releasing, and thus inhibited the HCl emission. The total volume of HCl released from PVC/metal oxides didnot exceed that of neat PVC.

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Effects of Metal Oxides on the Release Characteristic of HCl from the Combustion of Poly (vinyl chloride)

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