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首页> 外文期刊>Applied Physics >Sol-gel synthesis and physical characterization of high impact polystyrene nanocomposites based on Fe_2O_3 doped with ZnO
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Sol-gel synthesis and physical characterization of high impact polystyrene nanocomposites based on Fe_2O_3 doped with ZnO

机译：基于Fe_2O_3掺杂ZnO的高冲击聚苯乙烯纳米复合材料的溶胶 - 凝胶合成和物理特征

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摘要

Manufacturing of organic-inorganic composites with enhanced properties particularly, Fe_2O_3-ZnO/high impact polystyrene (HIPS) nanocomposites promising candidates for many requests. The presence of nanoparticles enhances the structural, thermal, and chemical stabilities, mechanical and operational performance of the nanocomposite matrices. Modified HIPS nanocomposites based on Fe_2O_3 doped by (0.0-0.6) ZnO were synthesized using the sol-gel method and gel casting approach. The structures, spectroscopic, dielectric and mechanical properties of the synthesized polymeric nanocomposites were investigated by XRD, TEM, FT-IR, UV-vis-DRs, terahertz (THz), dielectric and mechanical analysis. From chemical structural results, it can be confirmed the existence of ZnO in Fe_2O_3 and the internal structure rearrangement of iron oxide before dispersion into the HIPS matrix. The UV-Vis DRs show that the optical band gap decreases significantly with the increase of ZnO content in the nanocomposite. THz spectra in the spectral range of 0.2-2.5 THz showed an increase in the refractive indices and absorption coefficients for the prepared nanocomposites. Besides, the mechanical properties were affected by the addition of ZnO to HIPS-Fe_2O_3 where the elongation at break ％, Young's modulus, and maximum strength varied values relying on the applied ratio of ZnO especially for the ratio of 0.4. Finally, the produced nanocomposites can find widespread applications in optoelectronic, chemical, and biological applications besides their feasibility to apply on a large scale.
机译：制造有机 - 无机复合材料，具有增强性能，特别是Fe_2O_3-ZnO /高冲击聚苯乙烯（HIPS）纳米复合材料对于许多请求的候选者承诺。纳米颗粒的存在增强了纳米复合材料基质的结构，热和化学稳定性，机械和操作性能。使用溶胶 - 凝胶法和凝胶浇铸方法合成基于Fe_2O_3的改性髋孔纳米复合材料和凝胶铸造方法。通过XRD，TEM，FT-IR，UV-Vis-DRS，Terahertz（THz），电介质和机械分析研究了合成聚合物纳米复合材料的结构，光谱，介电和机械性能。从化学结构结果中，可以确认在将氧化铁中的ZnO存在于分散到臀部基质中的氧化铁中的内部结构重新排列。 UV-VIS DRS表明光带间隙随着纳米复合材料中的ZnO含量的增加而显着降低。频谱范围为0.2-2.5 THz的THz光谱显示出制备纳米复合材料的折射率和吸收系数增加。此外，通过向HIPS-Fe_2O_3加入ZnO至HIPS-Fe_2O_3的影响，其中依赖于ZnO的施加比的ZnO伸长率，特别是ZnO的伸长率，特别是对于0.4的比例的施加比。最后，除了在大规模施加的可行性外，所产生的纳米复合材料可以在光电，化学和生物学应用中找到广泛应用。

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  • 来源
    《Applied Physics》 |2020年第8期|654.1-654.11|共11页
  • 作者

    Amany M. El Nahrawy; AN B. Abou Hammad; Ahmed M.bakr; Th. I.Shaheen; A. M. Mansour;

  • 作者单位

    Solid State Physics Department Physics Research Division National Research Centre 33 El Bohouth St. Dokki Giza 12622 Egypt;

    Solid State Physics Department Physics Research Division National Research Centre 33 El Bohouth St. Dokki Giza 12622 Egypt;

    Spectroscopy Department Physics Research Division National Research Centre 33 El-Bohouth St. Dokki Giza 12622 Egypt;

    Textile Industries Research Division National Research Centre 33 El-Bohouth St. Dokki Giza 12622 Egypt;

    Solid State Physics Department Physics Research Division National Research Centre 33 El Bohouth St. Dokki Giza 12622 Egypt;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Sol-gel synthesis; HIPS; ZnO; Diffuse reflectance (UV-Vis/DRS); Terahertz; Dielectric spectroscopy;

    机译：溶胶 - 凝胶合成;臀部;zno;漫反射率（UV-Vis / DR）;太赫兹;介电光谱学;

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