CONTROLLED DRIPPING OF FLAME RETARDED THERMOPLASTICS
Dripping and melt flow of the pyrolysing polymer melt can be both a benefit and a detriment during a fire.Well-adjusted melt flow and dripping are regularly beneficial to pass small-scale fire tests.Flame retardants often significantly change the melt viscosity of polymeric materials.The influence of certain flame retardants on the dripping behaviour of four commercial polymers is analysed based on experimental monitoring of the mass loss due to dripping, drop size and drop temperature as a function of the furnace temperature applied to a rod-shaped specimen.Investigating the thermal transition, thermal and thermo-oxidative decomposition, as well as the viscosity of the polymer and collected drops accomplish the work and connects dripping and melt flow with physical and chemical processes.Various flame retardant mechanisms affect the dripping behaviour in the UL 94 test.A changed viscosity and reduction in decomposition temperature also play a major role.
M.Matzen B.Kandola C.Huth B.Schartel
Bundesanstalt für Materialforschung und-prüfung (BAM), Unter den Eichen 87, 12205 Berlin,Germany Institute for Materials Research and Innovation, University of Bolton, Deane Road, Bolton BL3 5AB, U
国际会议
长春
英文
5-6
2016-06-15（万方平台首次上网日期，不代表论文的发表时间）