MMT/超支化PA6纳米复合材料的制备及性能

China Plastics Industry(2019)

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Abstract
首先采用原位聚合法制备蒙脱土/超支化聚酰胺6 (PA6)纳米复合材料,然后流延成膜.利用自动黏度仪、傅里叶红外光谱仪、热重分析仪、毛细管流变仪、旋转流变仪、力学万能试验机等对蒙脱土/超支化PA6纳米复合材料进行表征.研究表明,上述纳米复合材料的剪切黏度与剪切速率的流变曲线符合幂律流体的特征,便于成型加工;随着蒙脱土(MMT)加入基体,上述纳米复合材料的热稳定性显著增加.将蒙脱土/超支化PA6纳米复合材料经流延制备成膜,薄膜的拉伸强度和断裂伸长率分别较纯超支化PA6薄膜提高20.1 MPa和92%.
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