聚酰亚胺针刺织物与聚苯硫醚针刺织物的热稳定性与燃烧性能对比  

Comparison of thermal stability and combustibility between PI and PPS needle punched fabrics

作　　者：李书干[1] 焦晓宁[1,2] 

机构地区：[1]天津工业大学纺织学部,天津300387 [2]天津工业大学先进纺织复合材料教育部重点实验室,天津300387

出　　处：《纺织学报》2012年第12期35-39,共5页Journal of Textile Research

摘　　要：采用热分析、极限氧指数、锥形量热法等手段,比较并分析了聚酰亚胺(PI)针刺织物与聚苯硫醚(PPS)针刺织物的热稳定性及燃烧性能。结果表明,PI针刺织物与PPS针刺织物的热分解温度分别为580℃和500℃,极限氧指数分别为40%和35%,点燃时间分别为38 s和32 s,热释放速率最大值分别为62.6 kW/m2和130.9 kW/m2,烟指数分别为12 MW/m2和35 MW/m2。通过对比研究,得出PI针刺织物比PPS针刺织物具有更优异的热稳定性和燃烧性能。Thermal analysis,limited oxygen index and cone calorimetry were used to compare the thermal stability and combustibility between polyimide（PI） and polyphenylene sulfide（PPS） needle punched fabrics.The results show that the decomposition temperature of PI and PPS needle punched fabrics is 580 ℃ and 500 ℃ respectively,LOI is 40% and 35%,ignition time is 38 s and 32 s,the maximum of heat release rate reaches 62.6 kW/m2 and 130.9 kW/m2,and the smoke factor is 12 MW/m2 and 35 MW/m2.By the comparison of these factors,a conclude that PI needle punched fabric is better than PPS in terms of thermal stability and combustibility is made.

关 键 词：热分析 锥形量热 聚酰亚胺纤维 聚苯硫醚纤维 

分 类 号：TS131.9[轻工技术与工程—纺织材料与纺织品设计]