Intumescent flame retardants for polymers. I. The poly(acrylonitrile)-ammonium polyphosphate-hexabromocyclododecane system

Journal Article · Sun May 01 00:00:00 EDT 1983 · J. Appl. Polym. Sci.; (United States)

DOI:https://doi.org/10.1002/app.1983.070280517· OSTI ID:5685858

Ballistreri, A; Montaudo, G; Puglisi, C; Scamporrino, E; Vitalini, D

The influence of ammonium polyphosphate (APP) and hexabromocyclododecane (HBCD) as flame retardant (FR) on poly(acrylonitrile) (PAN) has been examined. The APP-HBCD system behaves as an intumescent flame retardant (IFR) formulation, APP being the char-forming agent and HBCD the blowing agent. A negligible gas-phase mode of action was ascertained for HBCD with this substrate. A synergism between the two FR agents was observed, corresponding to about 50% increased efficacy with respect to the separate effects of the two components. Thermogravimetry (TG), oxygen index (OI), nitrous oxide index (NOI) experiments and phosphorous residue measurements were performed to substantiate the conclusion that a condensed phase mechanism of action accounts for all the facts observed.

• Research Organization: Instituto Departimentale di Chimica e Chimico Industriale, Cantanio, Italy
• OSTI ID: 5685858
• Journal Information: J. Appl. Polym. Sci.; (United States), Vol. 28:5
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ACRYLONITRILE
FLAMMABILITY
ORGANIC POLYMERS
AMMONIUM COMPOUNDS
ORGANIC BROMINE COMPOUNDS
PHOSPHATES
SYNERGISM
COMBUSTION PROPERTIES
NITRILES
ORGANIC COMPOUNDS
ORGANIC HALOGEN COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
OXYGEN COMPOUNDS
PHOSPHORUS COMPOUNDS
POLYMERS
360404* - Materials- Polymers & Plastics- Physical Properties- (-1987)