Flame Retardancy and Mechanical Property of Bi-Layer Polypropylene Sheets with Flame Retardant Selective Distribution

Yuan Yuan Xu; Zheng Hong Guo; Zheng Ping Fang; Yu Wu

doi:10.4028/www.scientific.net/AMR.396-398.2145

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 396-398Flame Retardancy and Mechanical Property of...

Flame Retardancy and Mechanical Property of Bi-Layer Polypropylene Sheets with Flame Retardant Selective Distribution

Abstract:

The flame performance and mechanical property of bi-layer polypropylene/intumescent flame retardant/clay (PP/IFR/clay) sheets with flame retardant selective distribution were studied. The cone calorimeter measurements demonstrated that the selective distributed IFR can further reduce the peak first heat release rate (PHRR₁), especially for the reduction in normalized mass loss. The digital images for the char residues after cone tests suggested that the char layer formed by the IFR particles in the selective distribution PP samples was more rapid and effective. The presence of IFR particles decreased the tensile strength and fracture strain of PP/IFR composites. The IFR composite with IFR particles selective in one layer can improve the fracture strain.