The Effect of Preheating on Photooxidatiori of Poly(vinyl chloride) Compound

DOI Web Site

Bibliographic Information

Other Title
  • ポリ(塩化ビニル)の光酸化におよぼず安定剤熱処理の影響
  • The effect of preheating on photooxidation of poly(vinyl chloride) compound.

Search this article

Description

Weatherability of poly(vinyl chloride) (PVC) films containing metal stearates and organotin compounds was siudied by a weathermeter. For all the stabilizers tested, the stabil i zing effect for PVC film!was different between with and without heat treatment prior to irradiation. Photooxidation of PVC film containing metal stearates was accelerated by the heat treatment prior to irradiation. On the other hand, for the samples containing organotin com pounds, the suppressive effect on photooxidation of PVC film was enhanced by heat treatm e nt before irradiation. It was found by means of electron spin resonance (ESR) spectrometry tha t the results depended on radicals which were generated by irradiation after heat treatment. If radical spiecies which generated from stabilizer by irradiation after heat treatment are identica l with radicals which generated by only irradiation without heat treatment and if the co ncentration of the radicals only increased, , suppresive effect of the stabilizer on the photo o xidation was enhanced by heat treatment. The other way, stabilizers which generate ox idized radicals such as alkoxyl and/or peroxyl radical by irradiation after heat treatment accelerate th e photooxidation of PVC.

Journal

  • NIPPON KAGAKU KAISHI

    NIPPON KAGAKU KAISHI 1985 (2), 249-254, 1985-02-10

    The Chemical Society of Japan

Keywords

Details 詳細情報について

Report a problem

Back to top