摘要
使用阻燃剂(ANTI-10)与高密度HDPE(HDPE)制备了无卤膨胀阻燃HDPE。通过力学性能、热重分析仪、氧指数和扫描电镜(SEM)对阻燃HDPE进行了表征。结果表明:随着阻燃剂添加量的增加,改性HDPE的拉伸强度、断裂伸长率和冲击强度总体呈现下降的趋势;其实际热分解曲线和理论热分解曲线可以比较好的重合;阻燃剂在HDPE中具有优异的阻燃性能,和纯HDPE相比,经过阻燃改性后,当添加阻燃剂质量分数30%时,改性HDPE总热释放量(THR)降低了23.22%,热释放峰值(PHRR)降低了50.19%;当添加阻燃剂质量分数25%时,改性HDPE垂直燃烧级数达到V-0级,通过SEM观察发现此时炭层完整、致密。
Halogen-free intumescent flame retardant high density polyethylene（HDPE） was prepared by flame retardant（ANTI-10）.The flame retardant HDPE was characterized by means of mechanical properties,thermogravimetry,oxygen index and SEM.The re-sults show that the tensile strength,elongation at break and impact strength of the modi-fied HDPE decrease generally with the increasing of the added amount of the flame re-tardant.The theoretical TG curves could match the TG curves of the samples.ANTI-10 has excellent flame retardant properties in HDPE.Compared to the pure HDPE, THR and PHRR of the modified HDPE decrease 23.22% and 50.1 9% respectively when the mass fraction of the flame retardant is 30%.The vertical burning specimen of modified HDPE reaches V-0 series when the mass fraction of the flame retardant is 25%,and SEM observation can show that the carbon layer is complete and dense.
出处
《现代塑料加工应用》
CAS
北大核心
2015年第5期29-32,共4页
Modern Plastics Processing and Applications
基金
上海市科委科技攻关计划资助项目(13dz1202900
13521104003)
关键词
无卤
阻燃
高密度聚乙烯
热重分析
halogen-free
flame retardant
high density polyethylene
thermogravime-tric analysis
