摘要
研究了Al(OH)_3,Mg(OH)_2包覆红磷(10份)对苯乙烯-乙烯-丁烯-苯乙烯嵌段共聚物(SEBS)/聚苯乙烯(PS)阻燃性能的影响。结果表明,Mg(OH)_2用量为80份时阻燃级别达V-2,氧指数达到29%,但力学性能较差;Al(OH)_3用量为80份时阻燃效果不很理想,但对力学性能影响较小;Mg(OH)_2/Al(OH)_3/包覆红磷体系中Mg(OH)_2用量大于Al(OH)_3时综合阻燃效果最好。阻燃体系的热释放速率降低,有效燃烧热出现峰值延后。
The influence of magnesium hydroxide,aluminium hydroxide,clad red phosphorus（10 phr） on the flame retardancy of SEBS/PS was studied. The results show that the magnesium hydroxide is 80 phr, the flame retardant level of the composites can reach V-2 and the limited oxygen index is 29%,but the mechanical properties is bad. The aluminium hydroxide is 80 phr, the flame retardant level of the composites is not very good ,but it has no significant influence on the mechanical properties. When the content of magnesium hydroxide is more than that of alminium hydroxide in magnesium hydroxide/aluminium hydroxide/clad red phosphorus system, the flame retardancy is the highest. The ignition time is delayed, heat release rate is reduced, the peak of effective heat combustion is delayed.
出处
《现代塑料加工应用》
CAS
北大核心
2011年第2期25-28,共4页
Modern Plastics Processing and Applications
关键词
苯乙烯-乙烯-丁烯-苯乙烯嵌段共聚物
氢氧化镁
氢氧化铝
红磷
无卤阻燃
协同效应
styrene-ethylene-butylene-styrene block copolymer
magnesium hydroxide
aluminium hydroxide
red phosphorus
non-halogen flame-retardant
synergy effects
