Synthesis of Zinc Hydroxystannate and Effect on Flame Retardancy and Smoke Suppression of PVC Cable Materials

doi:10.19491/j.issn.1001-9278.2010.06.017

Abstract

Abstract: Zinc hydroxystannate (ZHS) were obtained by hydrolyzation of Tin (Ⅳ) reacting with zinc (Ⅱ) in aqueous alkali at the presence of solid sodium hydroxide. X-ray diffraction and environmental Scanning Electron Microscope (ESEM) images show that the product grows into cubic poly-crystals having a mean edge length of about 380 nm. Flame retardant and smoke suppressant effects of ZHS in PVC cable materials and relevant mechanism were investigated by means of Limited oxygen index, smoke density measurement, environmental scanning electron microscope analysis and Gas chromatography-mass spectrometry. The results showed that ZHS had better flame retardance and smoke suppression effect than that of antimony trioxide in PVC When the content exceeds 15 phr.

Key words: cable compound, Polyvinyl chloride, Zinc hydroxytannate, Flame retardancy, Smoke suppression

CLC Number:

TQ325.3

YANG Ling. Synthesis of Zinc Hydroxystannate and Effect on Flame Retardancy and Smoke Suppression of PVC Cable Materials[J]. China Plastics, 2010, 24(06): 76-81 .

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Synthesis of Zinc Hydroxystannate and Effect on Flame Retardancy and Smoke Suppression of PVC Cable Materials

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