THE EFFECT OF GAMMA IRRADIATION ON THE MIGRATION BEHAVIOUR OF ORGANOTIN ADDITIVES IN PVC
Organo-tin compounds, added to PVC for stabilization properties, will immediately react with chlorine atoms or HC1 and will form mono- or dichloride organo-tin compounds. In a short time migration test (2 hours at 70 degrees C), using heptane as the contacting liquid, mass spectrometric measurement revealed such chlorinated organo-tin and polymeric tin compounds. Gamma irradiation stimulated the formation of a heptane soluble, non-volatile Sn compound with a high migration tendency. Possible degradation mechanisms or the organo-tin stabilizer under the influence of gamma irradiation are proposed.
Bibliographic Reference: J. OF INDUST. IRRADIATION TECH., VOL. 1 (1983), NO. 3, PP. 259-280
Record Number: 1989122027200 / Last updated on: 1987-01-01
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