High dielectric properties of polymer-based ternary blend films using fillers’ synergy between asymmetrical Na-bearing OH–C60 and insulative diamond

Mao, Bingshuang; Zhao, Xinyuan

doi:10.1016/j.cap.2021.11.017

Cited by 3 publications

(2 citation statements)

References 46 publications

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“…The dielectric constant value of BN(2)/Al 2 O 3 (1)@POE is larger than that of current under the applied electric field, thereby converting more heat. 57,58 This result demonstrates that the prepared composite films can be applied as insulating packaging materials.…”

Section: ■ Results and Discussionmentioning

confidence: 65%

“…The dielectric loss values of these composite films increase with the addition of fillers in the POE matrix, as presented in Figure B. Due to the interface polarization of diverse phases, it becomes easier to generate current under the applied electric field, thereby converting more heat. , This result demonstrates that the prepared composite films can be applied as insulating packaging materials.…”

Section: Resultsmentioning

confidence: 89%

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Exploring the Impact of Visual Heat Conduction Paths on Thermal Conductivity of Polymer Composites and the Practical Applications

Sun,

Ma,

Zhang

et al. 2024

Langmuir

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The theory of heat conduction paths has been widely recognized and widely studied in the research about the thermal conductivity of thermal conductive polymer composites at present. Encapsulating polymer pellets with thermally conductive fillers and processing them into thermally conductive polymer composites is a simple and effective method for constructing heat conduction paths. It is meaningful to investigate the related heat conduction mechanism of this method. Otherwise, this approach can significantly preserve the performance of the polymer substrate, making it highly valuable for practical material applications. In this work, polyethylene-octene elastomer (POE) pellets were encapsulated with thermal conductive fillers by physical absorption. Subsequently, the composite films containing heat conduction paths were fabricated using the encapsulated POE pellets through a heating press. Alumina (Al 2 O 3 ), boron nitride (BN), and alumina/boron nitride hybrid (Al 2 O 3 /BN) fillers were used to prepare Al 2 O 3 @POE, BN@POE, and BN/Al 2 O 3 @POE composite films to investigate the influence of filler shapes on heat conduction path construction. The influence of the constitute and density of heat conduction paths on the thermal conductivity of composite films was analyzed by infrared thermal imaging, finite element analysis, and thermal resistance theory in detail. Owing to the reserved good adhesion and flexibility of the POE substrate, the composite films could be directly used as thermal interface materials for chip cooling, which presented a good heat dissipation effect. Furthermore, a series of integrated composite materials were prepared by the combination of encapsulated pellets with various functional films (copper foil, aluminum foil, and graphite sheet) through a one-pot heating press, exhibiting a good electromagnetic shielding effect. The performance of the composites and the corresponding preparation method demonstrate the strong significance of this research for practical applications.

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Section: ■ Results and Discussionmentioning

confidence: 65%

Section: Resultsmentioning

confidence: 89%

Exploring the Impact of Visual Heat Conduction Paths on Thermal Conductivity of Polymer Composites and the Practical Applications

Sun,

Ma,

Zhang

et al. 2024

Langmuir

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A comparison of shear‐mixing and solvent‐induced on phase behavior, thermal and dielectric properties of PVDF‐HFP/MOF composites

Paramee

Guo

Bhalla

et al. 2022

J of Applied Polymer Sci

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The effects of processing techniques significantly alter on the electroactive β-phase, thermal, and dielectric behavior of polymer composites. The metalorganic framework filler (C 3 N 2 H 5 )(Mg(HCOO) 3 ), HImMg is prepared and introduced into poly(vinylidenefluoride-co-hexafluoropropylene) (PVDF-HFP) matrix using two distinguished methods: melt-mixing and solution-casting methods. The processing conditions are important in determining the dominant phase in PVDF-HFP. As a result of solvent-induced crystallization, the β-phase content of solution-cast composites containing 10% HImMg is 22% higher than that of melt-mixed composites. In both methods, the nucleating effect of HImMg particles increases the overall crystallinity of the polymer matrix and enhances the dielectric constant in composite films by improving the interfacial and dipolar polarization. Furthermore, the melt-mixed composites with 7 wt% HImMg demonstrate the highest dielectric constant of 17.8 at 1 kHz, showing an enhancement of 59% compared with that of pristine PVDF-HFP. Meanwhile, the dielectric loss is suppressed at 0.083. These findings suggest the possibility of enhancing composites' electroactive phase and dielectric properties without mechanical stretching or a large electrical field.

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PVC/Ti2C MXene/Diamond-Blend Films with High Dielectric Constants and Breakdown Strength Due to Electrical Synergy Between the Filler Materials

Geng¹,

Liu

Xiong

2022

J. Electron. Mater.

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High dielectric properties of polymer-based ternary blend films using fillers’ synergy between asymmetrical Na-bearing OH–C60 and insulative diamond

Cited by 3 publications

References 46 publications

Exploring the Impact of Visual Heat Conduction Paths on Thermal Conductivity of Polymer Composites and the Practical Applications

Exploring the Impact of Visual Heat Conduction Paths on Thermal Conductivity of Polymer Composites and the Practical Applications

A comparison of shear‐mixing and solvent‐induced on phase behavior, thermal and dielectric properties of PVDF‐HFP/MOF composites

PVC/Ti2C MXene/Diamond-Blend Films with High Dielectric Constants and Breakdown Strength Due to Electrical Synergy Between the Filler Materials

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