摘要
采用锥形量热法研究了聚磷酸铵(APP)、硼酸及由这两者组成的复配阻燃剂对环氧树脂(EP)复合材料燃烧性能的影响。结果表明:APP可使EP复合材料燃烧时的热释放量和烟释放量大大降低,到495 s时累积热释放量为27.3 MJ/m2,烟产生速率为2 243 m2/m2,与未阻燃EP复合材料相比分别下降了37%和49%,阻燃抑烟效果显著;硼酸推迟EP复合材料热解时间,延缓了烟尘和有毒气体的释放;APP与硼酸之间存在着协同阻燃作用,APP在燃烧前期催化EP成炭,硼酸降低燃烧后期的累积热释放量。
Effect of APP, boracic acid and the mixture on combustion performance of epoxy resin （EP） was studied by CONE calorimetry analysis. The results showed that： with the addition of APP, the total heat release of epoxy resin decreased by 37 % to 27.3MJ/m^2and its smoke production rate decreased by 49 % to 2 243 m^2/m^2 at 495 s. Pyrogenation of epoxy resin was delayed with boracic acid addition, so that the release of soot and poisonous gas slowed up. There was synergistic effect of fire retardants between APP and boracic acid, APP catalyzed epoxy resin into carbon in the early stage of experiment and boracic acid reduced the total heat release in the later stage of the experiment.
出处
《塑料工业》
CAS
CSCD
北大核心
2011年第3期88-91,95,共5页
China Plastics Industry
基金
国家自然科学基金项目(30871976)
中南林业科技大学研究生科技创新基金资助项目(2008sx03)
湖南省研究生科技创新基金资助项目(CX2010B317)
关键词
锥形量热法
阻燃
环氧树脂
聚磷酸铵
硼酸
CONE Calorimetry
Flame Retardancy
Epoxy Resin
APP
Boracic Acid
