Dielectric properties and thermal stability of popular 5G polymers at terahertz frequency range
With the development and application of 5G technology, polymers like PEEK, PEI, PI, PSU, etc., have become hot and gained much attention due to their excellent dielectric properties, good thermal stability and low costs. However, dielectric properties and thermal stability of most of these polymers...
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| Format: | Article |
| Language: | English |
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Elsevier
2025-01-01
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| Series: | Polymer Testing |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S0142941824003519 |
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| _version_ | 1841545622317957120 |
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| author | Yanchun Shen Jinlan Wang Dongshan Wei Jiankui Gao Yi Shi |
| author_facet | Yanchun Shen Jinlan Wang Dongshan Wei Jiankui Gao Yi Shi |
| author_sort | Yanchun Shen |
| collection | DOAJ |
| description | With the development and application of 5G technology, polymers like PEEK, PEI, PI, PSU, etc., have become hot and gained much attention due to their excellent dielectric properties, good thermal stability and low costs. However, dielectric properties and thermal stability of most of these polymers have still not been reported at the Terahertz (THz) frequency range. In this work, THz spectra of nine popular 5G polymers are measured at the room temperature and the heating temperatures varying from 30 to 300 °C at a wide frequency range up to 7.0 THz. By monitoring the variations of THz absorption coefficient of the polymer with the heating temperature, the deflection temperature of each polymer is determined and is in good agreement with the result from the differential scanning calorimetry (DSC) measurement. By investigating the variations of the real part of the complex dielectric constants with the heating temperature, the temperature coefficients of dielectric constant of these polymers are determined within the range of −300 to −100 ppm/°C, which indicating these polymers have good thermal stability. This work not only provides a spectroscopy and dielectric parameter database of popular 5G polymers at THz frequency range, but also demonstrates a spectroscopy method to evaluate the thermal stability of polymers in a fast and non-destructive way. |
| format | Article |
| id | doaj-art-f18871f88e904ed4ab84a268072eded4 |
| institution | Kabale University |
| issn | 1873-2348 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Polymer Testing |
| spelling | doaj-art-f18871f88e904ed4ab84a268072eded42025-01-12T05:24:07ZengElsevierPolymer Testing1873-23482025-01-01142108674Dielectric properties and thermal stability of popular 5G polymers at terahertz frequency rangeYanchun Shen0Jinlan Wang1Dongshan Wei2Jiankui Gao3Yi Shi4Information Engineering Institute, Guangzhou Railway Polytechnic, Guangzhou, 511300, ChinaInformation Engineering Institute, Guangzhou Railway Polytechnic, Guangzhou, 511300, ChinaShenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, Guangdong, 518055, China; Corresponding author.School of Microelectronics, Southern University of Science and Technology, Shenzhen, 518055, ChinaState Key Laboratory of Polymer Physics and Chemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100080, ChinaWith the development and application of 5G technology, polymers like PEEK, PEI, PI, PSU, etc., have become hot and gained much attention due to their excellent dielectric properties, good thermal stability and low costs. However, dielectric properties and thermal stability of most of these polymers have still not been reported at the Terahertz (THz) frequency range. In this work, THz spectra of nine popular 5G polymers are measured at the room temperature and the heating temperatures varying from 30 to 300 °C at a wide frequency range up to 7.0 THz. By monitoring the variations of THz absorption coefficient of the polymer with the heating temperature, the deflection temperature of each polymer is determined and is in good agreement with the result from the differential scanning calorimetry (DSC) measurement. By investigating the variations of the real part of the complex dielectric constants with the heating temperature, the temperature coefficients of dielectric constant of these polymers are determined within the range of −300 to −100 ppm/°C, which indicating these polymers have good thermal stability. This work not only provides a spectroscopy and dielectric parameter database of popular 5G polymers at THz frequency range, but also demonstrates a spectroscopy method to evaluate the thermal stability of polymers in a fast and non-destructive way.http://www.sciencedirect.com/science/article/pii/S0142941824003519PolymerTerahertz spectroscopyThermal stabilityDeflection temperatureAbsorption coefficientTemperature coefficient of dielectric constant |
| spellingShingle | Yanchun Shen Jinlan Wang Dongshan Wei Jiankui Gao Yi Shi Dielectric properties and thermal stability of popular 5G polymers at terahertz frequency range Polymer Testing Polymer Terahertz spectroscopy Thermal stability Deflection temperature Absorption coefficient Temperature coefficient of dielectric constant |
| title | Dielectric properties and thermal stability of popular 5G polymers at terahertz frequency range |
| title_full | Dielectric properties and thermal stability of popular 5G polymers at terahertz frequency range |
| title_fullStr | Dielectric properties and thermal stability of popular 5G polymers at terahertz frequency range |
| title_full_unstemmed | Dielectric properties and thermal stability of popular 5G polymers at terahertz frequency range |
| title_short | Dielectric properties and thermal stability of popular 5G polymers at terahertz frequency range |
| title_sort | dielectric properties and thermal stability of popular 5g polymers at terahertz frequency range |
| topic | Polymer Terahertz spectroscopy Thermal stability Deflection temperature Absorption coefficient Temperature coefficient of dielectric constant |
| url | http://www.sciencedirect.com/science/article/pii/S0142941824003519 |
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