...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>High temperature materials and processes >The Structure-Property Relationship of Poly(amide-imide)/Organoclay Nanocomposites
【24h】

The Structure-Property Relationship of Poly(amide-imide)/Organoclay Nanocomposites

机译：聚酰胺-酰亚胺/有机粘土纳米复合材料的结构-性能关系

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Surface treated montmorillonite (MMT) was used to prepare nanocomposites with poly(amide-imide) (PAI) 5 by solution intercalation technique with various percent of organoclay (5-15 mass %). Surface modification of the MMT was performed with Cloisite 20 A for ample compatibilization with the PAI matrix. The PAI 5 chains were produced through polycondensation of 4,4-diamino diphenyl sulfone 4 with N-trimellitylimido-L-alanine 3 in a medium consisting of triphenyl phosphite, N-methyl-2-pyrolidone (NMP), pyridine and calcium chloride. The PAI-Nanocomposites morphology and clay dispersion were investigated by X-ray diffraction (XRD) and Scanning electron microscopy (SEM). The effect of clay dispersion and the interaction between clay and PAI chains on the properties of PAI-Nanocomposites films were investigated by using UV-Vis spectroscopy, thermogravimetric analysis (TGA) and water uptake measurements. Thermal stability of nanocomposites increased relative to the neat polyamide with increasing organoclay content but water uptake of these materials decreased as compared to the neat polyamide indicating reduced permeability.
机译：使用表面处理的蒙脱石（MMT），通过溶液插层技术，以不同百分比的有机粘土（5-15质量％）制备具有聚（酰胺-酰亚胺）（PAI）5的纳米复合材料。用Cloisite 20 A对MMT进行表面修饰，以使其与PAI基质充分相容。 PAI 5链是通过在亚磷酸三苯酯，N-甲基-2-吡咯烷酮（NMP），吡啶和氯化钙组成的介质中将4，4-二氨基二苯基砜4与N-三甲基酰亚胺基-L-丙氨酸3缩聚产生的。通过X射线衍射（XRD）和扫描电子显微镜（SEM）研究了PAI-纳米复合材料的形态和粘土分散性。通过紫外可见光谱，热重分析（TGA）和吸水率测量，研究了粘土分散以及粘土与PAI链之间的相互作用对PAI-纳米复合膜性能的影响。相对于纯聚酰胺，随着有机粘土含量的增加，纳米复合材料的热稳定性提高，但与纯聚酰胺相比，这些材料的吸水率降低，表明渗透性降低。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号