Understanding Ul 94 Fire Behaviour: The Battle Between Glass Fibres and Melamine Cyanurate in Polyamide 6
The individual and collective impacts of additives in melt dripping behaviour were studied under UL 94 vertical test conditions.A set of polyamide 6 (PA6) based materials compounded with melamine cyanurate (MCA)-a dripping agent-and glass fibre (GF)-a non-dripping agent-was investigated in detail.Dripping quantification was carried out during first and second ignition.The materials and their drops were investigated with respect to thermal decomposition, melt viscosity, and others properties.PA6 with V-2 classification improves to V-0 when MCA is added;and is worsened to HB in presence of glass fibre.Together, PA6/GF/MCA achieved V-2.The non-flaming drops of PA6/MCA are formed by oligomeric fragments.The flaming drops of PA6/GF contain a high amount of glass fibre.The dripping behaviour of PA6/GF/MCA under fire is a complex response of the specimen, but not explained by an easy superposition of the materials properties.The dripping behaviour is influenced by the interaction and concurrence of the different phenomena.
A.Turski Silva Diniz B.Schartel
Bundesanstalt für Materialforschung und-prüfung (BAM), Unter den Eichen 87, 12205 Berlin, Germany
国际会议
杭州
英文
38-39
2018-06-14（万方平台首次上网日期，不代表论文的发表时间）