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Effect of stabilizers in the thermal treatment of PVC—XII.: An I.R. spectroscopic study of the complexation of Na and Zn stearates in PVC

✍ Scribed by K. Volka; Z. Vymazal; J. Stávek; V. Seidl

Publisher
Elsevier Science
Year
1982
Tongue
English
Weight
258 KB
Volume
18
Category
Article
ISSN
0014-3057

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✦ Synopsis

Effect of the 2:1 combination of Na and Zn stearates on the stabilization of PVC exposed to thermal stress at 180 ° in air has been studied by i.r. spectrometry (190(~1350cm 1) and by determination of Zn, Na and CI-in the decomposition products of the stearates (NaCI, ZnCI2). Complexation of both components in PVC mixtures proceeds very easily; a 2:1 complex is the only one formed in the mixture. One stearate (Na) of the binary mixture is consumed selectively over a substantial part of the thermal stability period. The stearate mixture studied has no significant synergistic effect,

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