ID (ISN) del documento | 38393 |
Número CIS |
82-1610 |
ISSN - Título de la serie |
0035-5836 - Rivista degli infortuni e delle malattie professionali |
Año |
1981 |
Número de serie |
|
Autor(es) |
La Bua R., Ferrari A., Carelli G., Rimatori V., Vinci F., Iannaccone A. |
Título |
Polyvivnyl chloride processing technology and lead contamination of the working environment |
Título original |
Tecnologia di trasformazione del cloruro di polivinile e relativo inquinamento da piombo nell'ambiente di lavoro [en italiano] |
Información bibliográfica |
July-Aug. 1981, Vol.48, No.4, p.379-388. |
Resumen |
The chemical reaction of PVC polymerisation is described and a review is given of the various additives used to modify the characteristics of the final polymer: stabilisers, plasticisers, lubricants and pigments. Stabilisers and pigments may contain lead, and the mixing of the dry-blend of PVC granules and these additives may give rise to high atmospheric lead contamination. The mixing process is described and a report is given on studies to monitor atmospheric lead concentrations at various parts of a PVC plant over the years 1971 to 1979. The highest concentrations were encountered in the dry blending process; these concentrations have been reduced by industrial hygiene measures, in particular local exhaust ventilation. |
Descriptores (primarios) |
plomo; industria de materias plásticas; cloruro de polivinilo |
Descriptores (secundarios) |
aspiración localizada; estabilizantes; valoración de la exposición; mezcla; pigmentos |
Tipo de documento |
D - Artículos periódicos |
Tema(s) |
Sustancias tóxicas y peligrosas
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Broad subject area(s) |
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Navegación por categoria(s) |
Inorganic substances Plastics industry Chemical industry Lead and compounds
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