摘要
采用可膨胀石墨(EG)为阻燃剂制备了几种典型的阻燃聚氨酯建筑保温材料(PUM),并用锥形量热仪(CCT)、热重分析(TG)、扫描电子显微镜(SEM)和热重-红外联用仪(TG-IR)等手段研究了复合材料的燃烧性能、生烟特性以及热稳定性。CCT测试结果显示EG可以提高PUM的阻燃性能和抑烟性能,15%的EG能使材料的热释放速率峰值(PHRR)由2 384 kW/m2(EG-0)降低至103 kW/m2,总烟释放(TSR)由836.7 m2/m2(EG-0)降到23 m2/m2。SEM测试表明,EG能够改善炭层结构;TG分析表明,EG可以提高材料的高温热稳定性,15%的EG能够使材料的残炭量从9.08%提高到16.51%;TG-IR结果表明,EG可以显著降低CO的生成以及其他有毒有害气体的释放。
Several typical flame retardant prepared using expandable graphite （EG） as properties and thermal stability were studied by polyurethane building insulation materials （PUM） were a flame retardant. The combustion performance, smoke cone calorimeter test （CCT）, thermogravimetric （TG） analysis, scanning electron microscopy （SEM） and thermogravimetry-infrared spectrometer （TG-IR） analysis. The CCT results showed that EG could improve the flame retardant and smoke suppression performance of PUM： with the addition of 15% EG, the PHRR value of PUM decreased from 2 384 kW/m2 （EG-0） to 103 kW/m2, and TSR value decreased from 836.7 m2/m2 （EG-0） to 23 m2/m2. The SEM test showed that EG had a promoting effect on the formation of a dense carbon layer, and improved the structure of carbon layer. The TG results showed that EG could improve the high temperature stability, and the addition of 15% EG made the residue weight increase from 9. 08% to 16. 51%. TG-IR results showed that EG could greatly reduce the production of CO and other gases emission.
出处
《塑料工业》
CAS
CSCD
北大核心
2015年第10期81-86,共6页
China Plastics Industry
关键词
聚氨酯建筑保温材料
阻燃
燃烧行为
热解特性
Polyurethane Building Insulation Material
Flame Retardant
Combustion Behavior
Pyrolysis Characterister
