CAJ | 학술논문

利用无卤膨胀阻燃剂(IFR)阻燃长玻纤增强聚丙烯(LGFPP)复合材料，研究IFR的添加量对复合材料阻燃性能、热稳定性能、燃烧性能和力学性能的影响。结果表明，加入IFR使复合材料燃烧后生成了具有阻燃作用的炭层，显著提高了复合材料的阻燃性能。随IFR添加量的增加，复合材料的极限氧指数(LOI)逐渐提高，热释放速率峰值及其平均值、总热释放速率和生烟速率逐渐降低，力学性能略有下降。当IFR质量分数为20%时，复合材料的LOI和垂直燃烧等级分别达到了24.4%和UL 94 V-0级。
이용무서팽창조연제(IFR)조연장파섬증강취병희(LGFPP)복합재료，연구IFR적첨가량대복합재료조연성능、열은정성능、연소성능화역학성능적영향。결과표명，가입IFR사복합재료연소후생성료구유조연작용적탄층，현저제고료복합재료적조연성능。수IFR첨가량적증가，복합재료적겁한양지수(LOI)축점제고，열석방속솔봉치급기평균치、총열석방속솔화생연속솔축점강저，역학성능략유하강。당IFR질량분수위20%시，복합재료적LOI화수직연소등급분별체도료24.4%화UL 94 V-0급。
Long glass fiber reinforced polypropylene composites with halogen-free intumescent flame retardant were prepared and effects of intumescent flame retardant content on flame retardancy,thermal stability,combustion behaviors and mechanical properties of the composites were studied. The results show that carbon layers with flame resistant function generate after combustion of the composites when adding the intumescent flame retardant,then the flame retardancy of the composites are improved significantly. With increase of the intumescent flame retardant content,limited oxygen index(LOI) of the composite is increased,the peak and mean value of heat release rate,total heat release rate and smoke production rate are decreased,the mechanical properties are decreased slightly. The LOI and vertical burning of the composite reach 24.4%and UL 94 V-0 rating respectively when mass fraction of the intumescent flame retardant is 20%.