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首页> 外文期刊>Journal of Applied Polymer Science >Investigation of Nanostructure and Properties of Aromatic–Aliphatic Polyamide-Based Nanocomposites with Clay Additives
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Investigation of Nanostructure and Properties of Aromatic–Aliphatic Polyamide-Based Nanocomposites with Clay Additives

机译：含粘土添加剂的芳基-脂族聚酰胺基纳米复合材料的纳米结构和性能研究

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摘要

Aromatic–aliphatic polyamide/clay nanocomposites were produced using solution intercalation technique. Surface modification of the clay was performed with ammonium salt of aromatic diamine and the polyamide chains were produced by condensation of 4- aminophenyl sulfone with sebacoyl chloride (SCC) in dimethyl acetamide. Carbonyl chloride endcapped polymer chains were prepared by adding extra SCC near the end of polymerization reaction. The nanocomposites were investigated for organoclay dispersion, water absorption, mechanical, and thermal properties. Formation of delaminated and intercalated nanostructures was confirmed by X-ray diffraction and TEM studies. Tensile strength and modulus improved for nanocomposites with optimum organoclay content (8 wt %). Thermal stability and glass transition temperatures of nanocomposites increased relative to pristine polyamide with augmenting organoclay content. The amount of water uptake for these materials decreased as compared with the neat polyamide.
机译：使用溶液插层技术生产了芳族-脂肪族聚酰胺/粘土纳米复合材料。用芳族二胺的铵盐对粘土进行表面改性，聚酰胺链是通过4-氨基苯基砜与癸二酰氯（SCC）在二甲基乙酰胺中的缩合而制得的。羰基氯封端的聚合物链是通过在聚合反应即将结束时添加额外的SCC来制备的。研究了纳米复合材料的有机粘土分散性，吸水率，机械性能和热性能。通过X射线衍射和TEM研究证实形成了分层和插层的纳米结构。对于具有最佳有机粘土含量（8 wt％）的纳米复合材料，拉伸强度和模量得到改善。相对于原始聚酰胺，纳米复合材料的热稳定性和玻璃化转变温度随着有机粘土含量的增加而增加。与纯聚酰胺相比，这些材料的吸水量减少了。

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