Novel Polyarylene Ether Nitrile/BaTiO 3 -Decorated WS 2 Nanohybrid Crosslinked Nanocomposites for Thermal-Stable Dielectrics.
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| Title: | Novel Polyarylene Ether Nitrile/BaTiO 3 -Decorated WS 2 Nanohybrid Crosslinked Nanocomposites for Thermal-Stable Dielectrics. |
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| Authors: | Mao, Xiaohua1 (AUTHOR), Zhou, Jingtao1,2 (AUTHOR), Wu, Junda1 (AUTHOR), Chen, Siyi1,2 (AUTHOR), Wang, Pan2 (AUTHOR), You, Yong1 (AUTHOR) youyong@swun.edu.cn |
| Source: | Polymers (20734360). Mar2026, Vol. 18 Issue 6, p747. 18p. |
| Subjects: | Dielectrics, Crosslinked polymers, Hybrid materials, Barium titanate, Nanostructured materials, Polymers, Dielectric films, Filler materials |
| Abstract: | To prepare high-temperature-resistant dielectric composite films, a novel three-dimensional nanofiller was fabricated using carboxylated polyarylene ether nitrile as a bridge, which tightly loads BaTiO3 nanoparticles onto WS2 nanosheets (WS2@BT) via in situ chemical bonding. Afterward, the WS2@BT nanofiller was introduced into the polyarylene ether nitrile (PEN) matrix, and high-temperature heat treatment was performed to form a crosslinked network, yielding CPEN/WS2@BT nanocomposites. Notably, the modified WS2@BT effectively improves the compatibility between the nanoparticles and the PEN matrix, which is superior to the compatibility of unmodified nanofillers with the matrix. Moreover, after crosslinking, CPEN/WS2@BT exhibits excellent comprehensive performance: when the filler content is 30 wt%, its glass transition temperature (Tg) reaches 257.83 °C, significantly higher than that of PEN/WS2@BT, and its dielectric constant is 193% higher than that of pure CPEN. In addition, the dielectric temperature coefficient remains below 1 × 10−3 °C−1 in the range of 25–220 °C. Overall, this work provides an effective and reliable strategy for preparing high-performance, high-temperature-resistant composite dielectric films. [ABSTRACT FROM AUTHOR] |
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| Database: | Engineering Source |
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| Abstract: | To prepare high-temperature-resistant dielectric composite films, a novel three-dimensional nanofiller was fabricated using carboxylated polyarylene ether nitrile as a bridge, which tightly loads BaTiO3 nanoparticles onto WS2 nanosheets (WS2@BT) via in situ chemical bonding. Afterward, the WS2@BT nanofiller was introduced into the polyarylene ether nitrile (PEN) matrix, and high-temperature heat treatment was performed to form a crosslinked network, yielding CPEN/WS2@BT nanocomposites. Notably, the modified WS2@BT effectively improves the compatibility between the nanoparticles and the PEN matrix, which is superior to the compatibility of unmodified nanofillers with the matrix. Moreover, after crosslinking, CPEN/WS2@BT exhibits excellent comprehensive performance: when the filler content is 30 wt%, its glass transition temperature (Tg) reaches 257.83 °C, significantly higher than that of PEN/WS2@BT, and its dielectric constant is 193% higher than that of pure CPEN. In addition, the dielectric temperature coefficient remains below 1 × 10−3 °C−1 in the range of 25–220 °C. Overall, this work provides an effective and reliable strategy for preparing high-performance, high-temperature-resistant composite dielectric films. [ABSTRACT FROM AUTHOR] |
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| ISSN: | 20734360 |
| DOI: | 10.3390/polym18060747 |
