摘要
使用氯氧镁纳米晶须(MOCNW)制备阻燃环氧树脂(EP)。采用微商热重法(DTG)、差示扫描量热法(DSC)、扫描电镜(SEM)和极限氧指数(LOI)对样品进行表征。研究和讨论MOCNW含量对EP/MOCNW复合材料LOI的影响及其阻燃机理。MOCNW的阻燃效果比氯氧镁(MOC)的要好。EP的起始分解温度提高了15℃。MOCNW是通过稀释、冷却、催化成炭和隔离协同作用而阻燃的。
Flame retardant epoxy resins were prepared by using magnesium oxychloride nano-whisker （MOCNW） as a flame retardant. The prepared samples were characterize by derivative thermogravimetry （DTG） and differential scanning calorimetry（DSC） ,scanning electron microscope （SEM） and limiting oxygen index （LOI） experiments. Effects of MOCNW content on LOI of epoxy resins/MOCNW composite and flame retardant mechanism were investigated and discussed. The flame retardant efficiency of MOCNW was higher than that of magnesium oxychloride（MOC）. Moreover, the initial decomposition temperature of epoxy resin increased by 15 ℃. The flame retarded mechanism of MOCNW was due to the synergic flame retardant effects of diluting, cooling, decomposition resisting, catalvzing char and obstructing.
出处
《塑料》
CAS
CSCD
北大核心
2012年第4期69-71,共3页
Plastics
关键词
环氧树脂
阻燃
氯氧镁纳米晶须
复合材料
协同作用
epoxy resin
flame retardant
magnesium oxychloride nano-whisker
composite
synergic
