Reinforcement of Polyamide 66 with Polyoxometalates Nanoparticles through the In Situ Sol-Gel Method
Reinforcement of Polyamide 66 with Polyoxometalates Nanoparticles through the In Situ Sol-Gel Method
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原位溶胶-凝胶法用多金属氧酸盐纳米颗粒增强聚酰胺 66
DOI：
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发表时间：
2010
期刊：
影响因子：
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通讯作者：
A. Fahmi
中科院分区：
文献类型：
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作者：
N. Cheval;Fang Xu;N. Gindy;R. Brooks;Yanyun Zhu;A. Fahmi
本文研究了纳米粒子对尼龙66热性能和力学性能的影响，制备了不同质量分数的聚氧乙烯酸盐纳米复合材料。纳米复合材料的结构特征，其特征在于使用TEM，ATR-FITR，DMA和TGA。结果表明，粒径约为5.5 nm的纳米粒子在聚合物基体中分散良好。PA 66与POM纳米粒子之间的物理相互作用对PA 66的热性能和力学性能产生了显著影响。动态力学分析（DMA）揭示了纳米复合材料的储能模量的相当大的变化。当POM含量仅为1wt%时，PA 66在25 ℃下的储能模量提高了45%。此外，纳米复合材料的热稳定性也得到增强，这可能是由于纳米颗粒对氧的吸收。结果表明，通过将PA 66的优异机械和热性能与POM的有趣的光学、电学和化学性能相结合，所获得的纳米复合材料在催化、储能、存储器件、汽车和建筑应用方面具有前景。
This paper investigated the influence of the nanoparticles on the thermal and mechanical properties of PA66 and various nanocomposites containing different weight fraction of polyoxometalate nanoparticles were prepared. The structural features of the nanocomposite are characterised using TEM, ATR-FITR, DMA and TGA. The results show that nanoparticles, around 5.5 nm in size are well-dispersed inside the polymer matrix. The physical interaction between PA66 and the POM nanoparticles led to a significant effect on the thermal and mechanical properties of PA66. Dynamic mechanical analysis (DMA) revealed a considerable change in the storage modulus of the nanocomposite. With only 1wt% of POM, the storage modulus of PA66 at 25oC is enhanced by 45%. Furthermore, the thermal stability of the nanocomposite is also enhanced, possibly owing to the absorption of oxygen by the nanoparticles. The results demonstrated that the obtained nanocomposites, via the combination of the excellent mechanical and thermal properties of PA66 with the intriguing optical, electrical and chemical properties of POM, were promising for catalytic, energy storage, memory devices, automobile and construction applications.