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Advances in the use of molybdenum compounds as smoke suppressants for PVC
Author(s) -
Moore Fred W.,
Weber Thomas R.,
Tsigdinos George A.
Publication year - 1981
Publication title -
journal of vinyl technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.295
H-Index - 35
eISSN - 1548-0585
pISSN - 0193-7197
DOI - 10.1002/vnl.730030211
Subject(s) - molybdenum , antimony trioxide , talc , smoke , molybdenum trioxide , polyvinyl chloride , molybdate , chemistry , wollastonite , materials science , nuclear chemistry , inorganic chemistry , fire retardant , organic chemistry , metallurgy , raw material
Molybdenum‐based compounds are effective smoke suppressants for rigid and flexible polyvinyl chloride formulations, both unfilled and filled with calcium carbonate and alumina trihydrate. These compounds, two of which are new compounds based on zinc molybdate with or without a phosphite synergist, are useful as is or extended onto core materials such as clay or talc. The addition of molybdenum‐containing additives to flexible PVCs containing antimony trioxide usually raises the oxygen index and thus improves flame retardancy. Tests indicate that molybdenum acts as a flame and smoke suppressant in the solid phase.