Plasma fluorination of BaTiO3 for enhancement of interfacial adhesion and surface insulation of epoxy resin

Wu, Han; Xie, Qing; Duan, Qijun; Yan, Jiyuan; Yin, Kai

doi:10.1007/s10853-019-04104-4

Cited by 15 publications

(10 citation statements)

References 37 publications

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“…Relevant experimental studies also confirmed that the distribution of graphene directly affects the macro properties of the composites [15][16][17]. It is found that the dispersion of nano fillers in polymer matrix can be improved by fluorination modification, and the fluorine-containing groups will form a shielding layer on the surface of nano materials, so as to inhibit the agglomeration of fillers [18][19][20]. This provides a method guidance for the construction of a modified graphene packing network with good dispersion.…”

Section: Introductionmentioning

confidence: 92%

Molecular Dynamics Simulation for the Effect of Fluorinated Graphene Oxide Layer Spacing on the Thermal and Mechanical Properties of Fluorinated Epoxy Resin

et al. 2021

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Traditional epoxy resin (EP) materials have difficulty to meet the performance requirements in the increasingly complex operating environment of the electrical and electronic industry. Therefore, it is necessary to study the design and development of new epoxy composites. At present, fluorinated epoxy resin (F-EP) is widely used, but its thermal and mechanical properties cannot meet the demand. In this paper, fluorinated epoxy resin was modified by ordered filling of fluorinated graphene oxide (FGO). The effect of FGO interlayer spacing on the thermal and mechanical properties of the composite was studied by molecular dynamics (MD) simulation. It is found that FGO with ordered filling can significantly improve the thermal and mechanical properties of F-EP, and the modification effect is better than that of FGO with disordered filling. When the interlayer spacing of FGO is about 9 Å, the elastic modulus, glass transition temperature, thermal expansion coefficient, and thermal conductivity of FGO are improved with best effect. Furthermore, we calculated the micro parameters of different systems, and analyzed the influencing mechanism of ordered filling and FGO layer spacing on the properties of F-EP. It is considered that FGO can bind the F-EP molecules on both sides of the nanosheets, reducing the movement ability of the molecular segments of the materials, so as to achieve the enhancement effect. The results can provide new ideas for the development of high-performance epoxy nanocomposites.

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Section: Introductionmentioning

confidence: 92%

Molecular Dynamics Simulation for the Effect of Fluorinated Graphene Oxide Layer Spacing on the Thermal and Mechanical Properties of Fluorinated Epoxy Resin

et al. 2021

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“…[8][9][10][11][12][13] Among them, fluorinated epoxy resin has electrical insulation and low shrinkage, but their high temperature resistance is not suitable for certain applications in special environments. [14][15][16][17][18][19][20] The dielectric properties of fluorinated epoxy resins have also been studied, suggesting that it can be used in related industries such as electronic devices. [21][22][23] To achieve miniaturization and portability, the size of electronic devices continues to shrink, introducing new obstacles such as signal crosstalk, power consumption and time delays.…”

Section: Introductionmentioning

confidence: 99%

“…Fluoropolymers include polytetrafluoroethylene, polytrifluoroethylene, polyvinylidene fluoride, polyvinyl fluoride, fluorinated epoxy resin, and so on 8–13 . Among them, fluorinated epoxy resin has electrical insulation and low shrinkage, but their high temperature resistance is not suitable for certain applications in special environments 14–20 . The dielectric properties of fluorinated epoxy resins have also been studied, suggesting that it can be used in related industries such as electronic devices 21–23 .…”

Section: Introductionmentioning

confidence: 99%

Preparation of fluorinated epoxy‐phthalonitrile resins with excellent thermal stability and low dielectric constant

Dong

Xiao-ming

Yin

et al. 2023

J of Applied Polymer Sci

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Fluoropolymers find applications in heat‐resistant cables, chemical‐resistant linings, electronic components, cladding materials, and weather‐resistant films. Therefore, it is imperative to improve their temperature resistance level and dielectric properties. In this study, a series of new fluorinated epoxy‐phthalonitrile resins with different mass ratios were prepared by adding phthalonitrile to the epoxy resin matrix, followed by a two‐step reaction of the amine with the epoxy resin at low temperature, and then by the reaction of the nitrile with the epoxy resin and the nitrile group at high temperature. The thermal stability and thermal oxidation stability of the cured products were improved; the initial decomposition temperature for 5% weight loss in air was 375.3°C, indicating good heat resistance performance. In addition, the glass transition temperature and storage modulus of the fluorinated epoxy‐phthalonitrile resins cured products increased with an increase in phthalonitrile content. The storage modulus remained above 1500 MPa until 150°C. The glass transition temperature of fluorinated epoxy‐phthalonitrile resins (at a mass ratio of 5:5) was 180°C, much higher than that of the epoxy resin (which was 140°C). Moreover, the dielectric constant of fluorinated phthalonitrile‐epoxy resin (5:5 mass ratio) was 2.01, which was 39.63% lower than that of fluorinated epoxy resin. The thermoset matrix has potential applications in the fabrication of a variety of low dielectric constant composites for electronic device related industries.

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“…The fibrous fillers are more likely to overlap each other to form a three‐dimensional charge pathway similar to the skeleton structure, which provides a dissipation channel for the charge and improves the electric field distribution on the composite surface, thus increasing the flashover voltage more effectively. [ 15 ] This three‐dimensional skeleton structure is more used to enhance the thermal conductivity of composite materials. [ 16 ] However, Guo et al [ 17 ] successfully prepared 3D Graphene sponge (GS) supported boron nitride (BN) skeleton (BN@GS).…”

Section: Introductionmentioning

confidence: 99%

Enhancing surface insulation of epoxy composite by constructing nanofiller‐skeleton charge channel

et al. 2022

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With the increase of voltage level, the surface flashover of epoxy composite insulation material becomes an important issue, which restricts the development of UHV (Ultra High Voltage) transmission technology. In this article, a method of using SiC skeleton to construct charge channel was proposed, which can enhance the surface insulation performance of epoxy composite. In addition, we investigated the influence of SiC skeleton structure on charge dissipation and flashover voltage. At the same time, we explored the synergistic influence mechanism of SiC and Al 2 O 3 nanofillers and SiC skeleton on the surface flashover characteristics of epoxy resin. The results showed that the SiC skeleton effectively enhances the surface insulation performance of epoxy resin. When Al 2 O 3 nanofiller and SiC skeleton act simultaneously, the flashover voltage enhancement reached 13.65%. Combining with finite element simulation, the flashover voltage enhancement mechanism of epoxy resin after modified by nanofiller-skeleton method was analyzed. It showed that the internal charge channel formed by the SiC skeleton plays an important role in suppressing the local field distortion. The results of the study provided a new idea for modifying epoxy composite to improve the flashover voltage.

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Plasma fluorination of BaTiO3 for enhancement of interfacial adhesion and surface insulation of epoxy resin

Cited by 15 publications

References 37 publications

Molecular Dynamics Simulation for the Effect of Fluorinated Graphene Oxide Layer Spacing on the Thermal and Mechanical Properties of Fluorinated Epoxy Resin

Molecular Dynamics Simulation for the Effect of Fluorinated Graphene Oxide Layer Spacing on the Thermal and Mechanical Properties of Fluorinated Epoxy Resin

Preparation of fluorinated epoxy‐phthalonitrile resins with excellent thermal stability and low dielectric constant

Enhancing surface insulation of epoxy composite by constructing nanofiller‐skeleton charge channel

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