摘要
通过熔融共混法制备了高抗冲聚苯乙烯(HIPS)/多壁碳纳米管/(MWNT)复合材料,采用热重分析仪和锥形量热仪评价了复合材料的阻燃性能,并用数码相机、扫描电子显微镜观察了燃烧残余物的结构。结果表明:与HIPS相比,w(MWNT)分别为3%,5%,10%的HIPS/MWNT复合材料的热释放速率峰值分别下降了21.66%,40.12%,56.21%,质量损失速率也明显降低,同时形成了对阻燃有关键作用并具有特殊结构的炭渣残余物。HIPS/MWNT复合材料燃烧后形成的炭渣具有蜂窝状的亚微观结构,以及纳米尺度的微观网络结构。
High-impact polystyrene （HIPS）/multiwall carbon nanotube （MWNT）composites were pre- pared through melt blending method. Flame retardancy of the composites was evaluated by thermogravimetrie （TG） analyzer and cone calorimeter. The combustion residue structure of the composites was examined by means of digital camera and scanning electron microscope （SEM）. The results show that the peak heat release rates of HIPS/MWNT containing 3%, 5%, 10% MWNT by mass are 21.66%, 40.12%, 56.21% down respectively in comparison with pure HIPS. The addition of MWNT also significantly reduces the mass loss rate and leads to the formation of the combustion residues with featured structure which has a vital impact on flame retardaney of the composites. The combustion residues of HIPS/MWNT composites assume cellular structure in sub-micro scale and micro network structure in nano-scale.
出处
《合成树脂及塑料》
CAS
北大核心
2013年第3期21-24,共4页
China Synthetic Resin and Plastics
基金
国家973项目(2012CB724609)
山东省自然科学基金(ZR2012EMQ008)
青岛市科技计划基础研究项目[12-1-4-3-(26)-jch]
关键词
高抗冲聚苯乙烯
多壁碳纳米管
复合材料
炭层结构
阻燃性能
high-impact polystyrene
muhiwall carbon nanotube
composite
combustion residue structure
flame retardancy
