B. Toure et al., FIRE RESISTANCE AND MECHANICAL-PROPERTIES OF A HUNTITE HYDROMAGNESITE/ANTIMONY TRIOXIDE/DECABROMODIPHENYL OXIDE FILLED PP-PE COPOLYMER/, Polymer degradation and stability, 53(3), 1996, pp. 371-379
A natural mineral filler containing mainly huntite and hydromagnesite
together with a blend of antimony trioxide (Sb2O3) and decabromodiphen
yl oxide (DBDPO) was used to reduce the flammability of an ethylene-pr
opylene copolymer. At the same time it was desirable to improve the st
iffness of the copolymer without damaging its impact resistance even a
t high filler content. All the components and the resulting composites
were studied by differential thermal (DTA) and thermogravimetric anal
ysis (TGA). Specific flammability tests and mechanical tests were also
carried out on the composites. The influence of the mineral filter an
d/or the Sb2O3/DBDPO blend on copolymer properties was investigated. T
he best results were obtained by combining both of the main components
to give 25% mineral filler and 20% Sb2O3/DBDPO blend. (C) 1996 Elsevi
er Science Limited.