BT@PDA增强PVDF/PMMA复合薄膜的介电与储能性能研究

doi:10.11896/cldb.24050123

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Abstract This study presents the design and synthesis of core-shell structured barium titanate@polydopamine(BT@PDA) particles through the in-situ polymerization of dopamine (DA) on the surface of BT nanoparticles. An equivalent mass of pristine BT and BT@PDA particles was subsequently dispersed into a polyvinylidene fluoride/poly(methyl methacrylate) (PVDF/PMMA) copolymer matrix, resulting in composite films of BT/PVDF/PMMA and BT@PDA/PVDF/PMMA. The experimental results indicate that the PDA coating significantly enhances the dielectric constant, mitigates dielectric loss, elevates the breakdown strength, and improves mechanical properties. At room temperature, the dielectric constant of the BT@PDA/PVDF/PMMA composite film at 10²Hz reached 10.9, making a 67.7% increase over the unfilled PVDF/PMMA film;the dielectric loss was reduced by 32.4% to 0.052;the breakdown strength was raised by 68.8% to 606 kV/mm;and the discharged energy density was elevated by 128.9% to 10.3 J/cm³, with charge-discharge efficiency maintained above 58%. Furthermore, under high-temperature conditions ranging from 50 ℃ to 90 ℃, the PDA coating continues to positively affect the dielectric and energy storage properties. At 70 ℃, the energy storage density of the BT@PDA/PMMA/PVDF composite film was 6.48 J/cm³, with an efficiency exceeding 53%.

Key words： energy storage density dielectric properties polyvinylidene fluoride (PVDF) polymethyl methacrylate (PMMA) BT@PDA

Published: 10 July 2025 Online: 2025-07-21

CLC number:

TM215.3

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	Articles by authors
	HUANG Yunlong
	CUI Weiwei
	HOU Yajuan
	DONG Haolin

Cite this article:

HUANG Yunlong,CUI Weiwei,HOU Yajuan, et al. Enhanced Dielectric and Energy Storage Properties of PVDF/PMMA Composite Films Modified with BT@PDA[J]. Materials Reports, 2025, 39(13): 24050123-10.

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https://www.mater-rep.com/EN/10.11896/cldb.24050123 OR https://www.mater-rep.com/EN/Y2025/V39/I13/24050123

1 Aziz A, Ahammad A J S, Rahman M.Chemical Record, 2024, 24(1), e202300358.
2 Dong S, Gao W H, Shi K M, et al.Cell Reports Physical Science, 2023, 4(2), 101284.
3 Burke A.Applied Sciences, 2021, 11(17), 8063.
4 Liu T Y, Liu G L.Journal of Physics-Condensed Matter, 2019, 31(23), 233001.
5 Luo S B, Yu J Y, Yu S H, et al.Advanced Energy Materials, 2019, 9(5), 1803204.
6 Wu Z Q, Peng Y W, Guo Q, et al.Materials Today Communications, 2022, 32, 103857.
7 Zheng S, Xie J, Zhao X, et al.Langmuir, 2023, 39(10), 3710.
8 Zhang C, Yan W, Zhang Y, et al.ACS Applied Electronic Materials, 2023, 5(7), 3817.
9 Cui Y, Feng Y, Zhang T, et al.ACS Applied Materials & Interfaces, 2020, 12(50), 56424.
10 Wang Z, Fan J, Guo X, et al.RSC Advances, 2020, 10(45), 27025.
11 Pei J Y, Yin L J, Zhong S L, et al.Advanced Materials, 2023, 35(3), 2203623.
12 Prabhung P, Comlek Y, Shandilya A, et al.Nanomaterials, 2023, 13(17), 2394.
13 Hao Y N, Feng Z P, He Z D, et al.Materials & Design, 2020, 189, 108523.
14 Wang Y, Yang D D, Hessien M M, et al.Advanced Composites and Hybrid Materials, 2022, 5(3), 2106.
15 Zhao T Y, Ye Y S, Guo K X, et al.Journal of Alloys and Compounds, 2024, 970, 172487.
16 Xia W, Zhou J, Hu T, et al.Composites Part A:Applied Science and Manufacturing, 2020, 131, 105805.
17 Xu H, Xie C, Gou B, et al.Composites Science and Technology, 2022, 230, 109777.
18 Zhou Y, Liu W, Tan B, et al.Polymers, 2021, 13(7), 998.
19 Trabelsi A B G, Mostafa A M, Alkallas F H, et al.Micromachines, 2023, 14(6), 1195.
20 Chen X, Tougne C, Jiang T, et al.Polymer, 2022, 261, 125366.
21 Sagirli F Z E, Unsal C, Kayali E S, et al.Reactive and Functional Polymers, 2016, 100, 1.
22 Zhao P, Wang L, Bian L, et al.Journal of Materials Science & Technology, 2015, 31(2), 223.
23 Zhang L, Wang Y, Xu M, et al.ACS Applied Energy Materials, 2019, 2(8), 5945.
24 Zha J W, Xiao M, Wan B, et al.Progress in Materials Science, 2023, 140, 101208.
25 Yang D, Huang S, Ruan M, et al.Journal of Materials Chemistry C, 2017, 5(31), 7759.
26 Wang R, Xie C, Luo S, et al.ACS Applied Energy Materials, 2021, 4(6), 6135.
27 Zhang C, Zhang T, Feng M, et al.ACS Sustainable Chemistry & Engineering, 2021, 9(48), 16291.
28 Zheng S, Xie J, Zhao X, et al.Langmuir, 2023, 39(10), 3710.
29 Abyaneh E R, Olamaei J, Abedi S M.Sustainability, 2023, 15(15), 11814.
30 Xie G C, Wang Y G.Application of IC, 2005(1), 12 (in Chinese).
谢广超, 王跃刚. 集成电路应用, 2005(1), 12.