新型阻燃高抗冲聚苯乙烯的制备及性能

加入自制有机成炭剂,利用溴锑阻燃剂与成炭剂的协效阻燃作用,并采用苯乙烯–丁二烯–苯乙烯三嵌段共聚物(SBS)进行增韧,制备了一种新型阻燃高抗冲聚苯乙烯树脂(PS-HI)。通过力学性能、数字化冲击仪、热分析、锥形量热的分析方法,研究新型阻燃PS-HI的综合性能及燃烧行为。结果表明,新型阻燃PS-HI的韧性提高了16%,密度降低了0.6%,流动性提高了6%,具有较低的热释放和烟释放,阻燃效率较高,综合性能优异,相对于目前传统的阻燃PS-HI材料,具有较大的技术创新性,产品性能方面具有明显的优势,满足了目前产品发展的新需求。

Preparation and Performance of New Type of Flame-Retardant PS-HI

A new type of flame-retardant high impact polystyrene resin(PS-HI)was prepared by using the synergistic flameretardant effect of bromine-antimony flame retardant and self-made organic char-forming agent,styrene-butadiene-styrene triblock copolymer(SBS)as flexibilizer.Through the analysis methods of mechanical properties,the digital impact instrument,thermal analysis,cone calorimetry,comprehensive performance and burning behavior of new flame-retardant PS-HI were studied.The results show that the toughness of the new flame-retardant PS-HI is increased by 16%,the density is reduced by 0.6%,the fluidity is increased by 6%,it has lower heat release and smoke release,higher flame retardant efficiency and excellent comprehensive performance.Compared with the current traditional flame-retardant PS-HI materials,new flame-retardant PS-HI have greater technological innovation and have obvious advantages in product performance which meet the new needs of current product development.