Thermal stability and flammability of polyamide 66/montmorillonite nanocomposites
Thermal stability and flammability of polyamide 66/montmorillonite nanocomposites
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DOI：
10.1016/j.polymer.2003.09.014
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发表时间：
2003-11
期刊：
影响因子：
4.6
通讯作者：
Huaili Qin;Quansheng Su;Shimin Zhang;Bin Zhao;Mingshu Yang
中科院分区：
文献类型：
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作者：
Huaili Qin;Quansheng Su;Shimin Zhang;Bin Zhao;Mingshu Yang
制备了基于聚酰胺66（PA66）和蒙脱土（MMT）的剥离纳米复合材料，并通过热重分析和锥形量热仪研究了其热稳定性和燃烧行为。纳米复合材料表现出较高的热稳定性和良好的阻燃性。 MMT的催化分解效应和层状硅酸盐的阻隔效应在等温氧化实验中直接呈现。初始放热速率图表明，MMT的添加可以加速PA66基体的着火。在燃烧过程中，纳米复合材料的表面会形成类似陶瓷的炭。通过衰减全反射红外光谱和扫描电子显微镜对其进行表征。
Exfoliated nanocomposites based on polyamide 66 (PA66) and montmorillonite (MMT) were prepared and their thermal stability and combustion behaviour were investigated by using thermal gravity analysis and cone calorimeter. The nanocomposites exhibit higher thermal stability and good flame retardancy. The catalytic decomposition effect of MMT and the barrier effect of layer silicates are presented directly in isothermal oxidation experiment. The initial heat release rate plots show that the addition of MMT can accelerate the ignition of PA66 matrix. A ceramic-like char forms in the surface of the nanocomposites during burning. It is characterized by attenuated total reflection infrared spectra and scanning electron microscopy.