Author:Focke, WW; Muiambo, H; Mhike, W; Kruger, HJ; Ofosu, ODate:Feb 2014The utility of expandable graphite as a flame retardant for PVC, plasticized with 60 phr of a phosphate ester, was investigated. Cone calorimeter results, at a radiant flux of 35 kW m 2, revealed that adding only 5 wt.% expandable graphite ...Read more