Synergistic enhancement of dielectric properties of polymer matrix composites by micro‐nano bicomponent ceramics and conductive particles
Abstract Barium titanate (BaTiO3, BT) was co‐doped by solid‐state sintering with niobium pentoxide (Nb2O5) and cobalt trioxide (Co3O4) as dopants. The modified barium titanate containing Nb and Co (BTNC) with larger particle size (0.5–1 μm) and silver powder (Ag) with smaller particle size (25 nm) w...
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2023-03-01
|
| Series: | IET Nanodielectrics |
| Subjects: | |
| Online Access: | https://doi.org/10.1049/nde2.12039 |
| _version_ | 1811154965967667200 |
|---|---|
| author | Dongyi Wu Yue Zhai Haiping Xu Lihe Guo |
| author_facet | Dongyi Wu Yue Zhai Haiping Xu Lihe Guo |
| author_sort | Dongyi Wu |
| collection | DOAJ |
| description | Abstract Barium titanate (BaTiO3, BT) was co‐doped by solid‐state sintering with niobium pentoxide (Nb2O5) and cobalt trioxide (Co3O4) as dopants. The modified barium titanate containing Nb and Co (BTNC) with larger particle size (0.5–1 μm) and silver powder (Ag) with smaller particle size (25 nm) were co‐filled with polyvinylidene fluoride (PVDF) to prepare (BTNC‐Ag)/PVDF three‐phase composites. The morphology and crystal structure of composites were characterised by scanning electron microscope (SEM) and X‐ray diffraction (XRD), respectively. SEM shows that when the volume ratio of BTNC and Ag in the composite is 4:1, the two fillers have good dispersion in polymer matrix and could intersperse with each other to reduce voids. XRD patterns display that the filling of BTNC and Ag powders was conducive to promoting the enhancement of the diffraction peaks of β phase and γ phase in PVDF. The dielectric properties of the composites are effectively enhanced through the synergistic effect of the micro‐nano bicomponent ceramic BTNC and conductive particles Ag co‐filled polymer PVDF. When the volume ratio of filler (BTNC:Ag = 4:1) to matrix PVDF is 2/1, the dielectric properties of the composite are the best, the dielectric constant reaches 134.1 at 102 Hz and the dielectric loss is 0.04. |
| first_indexed | 2024-04-10T04:26:02Z |
| format | Article |
| id | doaj.art-5979e9359756434e99b0688f1bc16009 |
| institution | Directory Open Access Journal |
| issn | 2514-3255 |
| language | English |
| last_indexed | 2024-04-10T04:26:02Z |
| publishDate | 2023-03-01 |
| publisher | Wiley |
| record_format | Article |
| series | IET Nanodielectrics |
| spelling | doaj.art-5979e9359756434e99b0688f1bc160092023-03-10T14:12:00ZengWileyIET Nanodielectrics2514-32552023-03-01611810.1049/nde2.12039Synergistic enhancement of dielectric properties of polymer matrix composites by micro‐nano bicomponent ceramics and conductive particlesDongyi Wu0Yue Zhai1Haiping Xu2Lihe Guo3School of Energy and Materials Shanghai Polytechnic University Shanghai ChinaXi'an Institute for Innovative Earth Environment Research Xi'an ChinaSchool of Energy and Materials Shanghai Polytechnic University Shanghai ChinaSchool of Energy and Materials Shanghai Polytechnic University Shanghai ChinaAbstract Barium titanate (BaTiO3, BT) was co‐doped by solid‐state sintering with niobium pentoxide (Nb2O5) and cobalt trioxide (Co3O4) as dopants. The modified barium titanate containing Nb and Co (BTNC) with larger particle size (0.5–1 μm) and silver powder (Ag) with smaller particle size (25 nm) were co‐filled with polyvinylidene fluoride (PVDF) to prepare (BTNC‐Ag)/PVDF three‐phase composites. The morphology and crystal structure of composites were characterised by scanning electron microscope (SEM) and X‐ray diffraction (XRD), respectively. SEM shows that when the volume ratio of BTNC and Ag in the composite is 4:1, the two fillers have good dispersion in polymer matrix and could intersperse with each other to reduce voids. XRD patterns display that the filling of BTNC and Ag powders was conducive to promoting the enhancement of the diffraction peaks of β phase and γ phase in PVDF. The dielectric properties of the composites are effectively enhanced through the synergistic effect of the micro‐nano bicomponent ceramic BTNC and conductive particles Ag co‐filled polymer PVDF. When the volume ratio of filler (BTNC:Ag = 4:1) to matrix PVDF is 2/1, the dielectric properties of the composite are the best, the dielectric constant reaches 134.1 at 102 Hz and the dielectric loss is 0.04.https://doi.org/10.1049/nde2.12039crystal microstructuredielectric materialsnanocompositesparticle reinforced composites |
| spellingShingle | Dongyi Wu Yue Zhai Haiping Xu Lihe Guo Synergistic enhancement of dielectric properties of polymer matrix composites by micro‐nano bicomponent ceramics and conductive particles IET Nanodielectrics crystal microstructure dielectric materials nanocomposites particle reinforced composites |
| title | Synergistic enhancement of dielectric properties of polymer matrix composites by micro‐nano bicomponent ceramics and conductive particles |
| title_full | Synergistic enhancement of dielectric properties of polymer matrix composites by micro‐nano bicomponent ceramics and conductive particles |
| title_fullStr | Synergistic enhancement of dielectric properties of polymer matrix composites by micro‐nano bicomponent ceramics and conductive particles |
| title_full_unstemmed | Synergistic enhancement of dielectric properties of polymer matrix composites by micro‐nano bicomponent ceramics and conductive particles |
| title_short | Synergistic enhancement of dielectric properties of polymer matrix composites by micro‐nano bicomponent ceramics and conductive particles |
| title_sort | synergistic enhancement of dielectric properties of polymer matrix composites by micro nano bicomponent ceramics and conductive particles |
| topic | crystal microstructure dielectric materials nanocomposites particle reinforced composites |
| url | https://doi.org/10.1049/nde2.12039 |
| work_keys_str_mv | AT dongyiwu synergisticenhancementofdielectricpropertiesofpolymermatrixcompositesbymicronanobicomponentceramicsandconductiveparticles AT yuezhai synergisticenhancementofdielectricpropertiesofpolymermatrixcompositesbymicronanobicomponentceramicsandconductiveparticles AT haipingxu synergisticenhancementofdielectricpropertiesofpolymermatrixcompositesbymicronanobicomponentceramicsandconductiveparticles AT liheguo synergisticenhancementofdielectricpropertiesofpolymermatrixcompositesbymicronanobicomponentceramicsandconductiveparticles |