A Rahimli, A Huseynova, N Musayeva, R Alekperov, M Jafarov
{"title":"深入了解聚苯乙烯-氧化锌纳米复合材料的介电性能和热性能:多元表征方法","authors":"A Rahimli, A Huseynova, N Musayeva, R Alekperov, M Jafarov","doi":"10.1177/08927057241274265","DOIUrl":null,"url":null,"abstract":"In this study, zinc oxide nanoparticles (ZnO) were successfully incorporated into polystyrene (PS) using a combination of solution mixing and hot-pressing methods, yielding a range of PS/ZnO nanocomposites. Characterization using X-ray diffraction (XRD) techniques, scanning electron microscopy (SEM), impedance spectroscopy (IS), Raman spectroscopy (RS), thermogravimetric analysis (TG) and differential scanning calorimetry (DSC) revealed distinct features. XRD analysis of nanocomposites showed both weak and high-intensity peaks at different scattering angles (2θ = 8°–11° and 20°–22°), indicating amorphous phases PS phases with varying sizes of nanoparticles. It has been proved that the addition of higher amounts of ZnO leads to the disappearance of the maximum of weak intensity in the studied substance (PS/10%ZnO), which is due to the formation of microcrystalline regions that lead to the formation of sharp maxima with high intensity. It was determined that the increase in the concentration of ZnO up tp 5 % volume content enhances the dielectric permeability (ε) and polarization capacity of polystyrene. It is believed that, depending on the ZnO concentration, the increased dielectric permeability and polarizability are attributed to phases with different charge densities at the boundaries between the ZnO nanoparticles and the matrix, which promotes additional polarization and contributes to the overall enhanced permittivity. This formation of interfacial boundaries is evident from the stepwise shape of the thermogravimetric (TG) curve with increasing ZnO content. The introduction of ZnO nanoparticles into PS results in the formation of new phases, altering the intensity and position of peaks observed at frequencies of 376 cm⁻<jats:sup>1</jats:sup> and 485 cm⁻<jats:sup>1</jats:sup> in the Raman scattering spectrum, partially shifting towards higher frequencies.","PeriodicalId":17446,"journal":{"name":"Journal of Thermoplastic Composite Materials","volume":"30 1","pages":""},"PeriodicalIF":3.6000,"publicationDate":"2024-08-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Insights into dielectric and thermal properties of polystyrene-zinc oxide nanocomposites: A multifaceted characterization approach\",\"authors\":\"A Rahimli, A Huseynova, N Musayeva, R Alekperov, M Jafarov\",\"doi\":\"10.1177/08927057241274265\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"In this study, zinc oxide nanoparticles (ZnO) were successfully incorporated into polystyrene (PS) using a combination of solution mixing and hot-pressing methods, yielding a range of PS/ZnO nanocomposites. Characterization using X-ray diffraction (XRD) techniques, scanning electron microscopy (SEM), impedance spectroscopy (IS), Raman spectroscopy (RS), thermogravimetric analysis (TG) and differential scanning calorimetry (DSC) revealed distinct features. XRD analysis of nanocomposites showed both weak and high-intensity peaks at different scattering angles (2θ = 8°–11° and 20°–22°), indicating amorphous phases PS phases with varying sizes of nanoparticles. It has been proved that the addition of higher amounts of ZnO leads to the disappearance of the maximum of weak intensity in the studied substance (PS/10%ZnO), which is due to the formation of microcrystalline regions that lead to the formation of sharp maxima with high intensity. It was determined that the increase in the concentration of ZnO up tp 5 % volume content enhances the dielectric permeability (ε) and polarization capacity of polystyrene. It is believed that, depending on the ZnO concentration, the increased dielectric permeability and polarizability are attributed to phases with different charge densities at the boundaries between the ZnO nanoparticles and the matrix, which promotes additional polarization and contributes to the overall enhanced permittivity. This formation of interfacial boundaries is evident from the stepwise shape of the thermogravimetric (TG) curve with increasing ZnO content. The introduction of ZnO nanoparticles into PS results in the formation of new phases, altering the intensity and position of peaks observed at frequencies of 376 cm⁻<jats:sup>1</jats:sup> and 485 cm⁻<jats:sup>1</jats:sup> in the Raman scattering spectrum, partially shifting towards higher frequencies.\",\"PeriodicalId\":17446,\"journal\":{\"name\":\"Journal of Thermoplastic Composite Materials\",\"volume\":\"30 1\",\"pages\":\"\"},\"PeriodicalIF\":3.6000,\"publicationDate\":\"2024-08-16\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Thermoplastic Composite Materials\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://doi.org/10.1177/08927057241274265\",\"RegionNum\":4,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"MATERIALS SCIENCE, COMPOSITES\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Thermoplastic Composite Materials","FirstCategoryId":"88","ListUrlMain":"https://doi.org/10.1177/08927057241274265","RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"MATERIALS SCIENCE, COMPOSITES","Score":null,"Total":0}
Insights into dielectric and thermal properties of polystyrene-zinc oxide nanocomposites: A multifaceted characterization approach
In this study, zinc oxide nanoparticles (ZnO) were successfully incorporated into polystyrene (PS) using a combination of solution mixing and hot-pressing methods, yielding a range of PS/ZnO nanocomposites. Characterization using X-ray diffraction (XRD) techniques, scanning electron microscopy (SEM), impedance spectroscopy (IS), Raman spectroscopy (RS), thermogravimetric analysis (TG) and differential scanning calorimetry (DSC) revealed distinct features. XRD analysis of nanocomposites showed both weak and high-intensity peaks at different scattering angles (2θ = 8°–11° and 20°–22°), indicating amorphous phases PS phases with varying sizes of nanoparticles. It has been proved that the addition of higher amounts of ZnO leads to the disappearance of the maximum of weak intensity in the studied substance (PS/10%ZnO), which is due to the formation of microcrystalline regions that lead to the formation of sharp maxima with high intensity. It was determined that the increase in the concentration of ZnO up tp 5 % volume content enhances the dielectric permeability (ε) and polarization capacity of polystyrene. It is believed that, depending on the ZnO concentration, the increased dielectric permeability and polarizability are attributed to phases with different charge densities at the boundaries between the ZnO nanoparticles and the matrix, which promotes additional polarization and contributes to the overall enhanced permittivity. This formation of interfacial boundaries is evident from the stepwise shape of the thermogravimetric (TG) curve with increasing ZnO content. The introduction of ZnO nanoparticles into PS results in the formation of new phases, altering the intensity and position of peaks observed at frequencies of 376 cm⁻1 and 485 cm⁻1 in the Raman scattering spectrum, partially shifting towards higher frequencies.
期刊介绍:
The Journal of Thermoplastic Composite Materials is a fully peer-reviewed international journal that publishes original research and review articles on polymers, nanocomposites, and particulate-, discontinuous-, and continuous-fiber-reinforced materials in the areas of processing, materials science, mechanics, durability, design, non destructive evaluation and manufacturing science. This journal is a member of the Committee on Publication Ethics (COPE).