Dielectric and mechanical properties and thermal stability of polyimide–graphene oxide composite films

Chen, Minghua; Yin, Jie; Jin, Rong; Yao, Lei; Su, Bo; Liu, Qingquan

doi:10.1016/j.tsf.2015.01.005

Cited by 72 publications

(30 citation statements)

References 21 publications

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“…28 Chen minghua 29 found that the mechanical property, thermal conductivity, and electric conductivity clearly increased with the addition of a small amount of GO. Dong et al 30 prepared GO/ PI composite bres with ODA-modied GO and found that the incorporation of graphene greatly improved the thermal stability and hydrophobic behaviour of the composite bre.…”

Section: 2427mentioning

confidence: 99%

The effect of doping graphene oxide on the structure and property of polyimide-based graphite fibre

Meng

et al. 2017

RSC Adv.

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Herein, graphite fibres were prepared from polyimide (PI) fibres by doping varying contents of graphene oxide (GO) into polyimide (PI) fibres through a carbonization and graphitization process. By in situ polymerization, GO/polyamic acid (PAA) was synthesized and used for preparing GO/PI fibres via dry-jet wet spinning. During the spinning process, the molecular orientation of GO/PI fibres was forced to follow the fibre axis under the strong sheer force at the spinneret. The DSC results show that the exothermic intensity of 1.0 wt% GO/PI composite fibres declined by 69.7% than that of the pure PI fibre; this prevented the breakage of PI molecular chains and maintained the preferred orientation of the GO/ PI fibres. During the graphitization process, GO sheets were reduced to grain graphene, acting as nucleus crystals, which could enlarge the size of microcrystals of graphite and increase the degree of graphitization. PI fibres as a carbon precursor showed great potential in the preparation of graphite fibres with high thermal conductivity, and GO doping can improve the thermal conductivity of the composite graphite fibres. When 2.0 wt% GO was added, the thermal conductivity of the GO/PI composite graphite fibre could reach 435 W m À1 K À1, which was twice that of the pure PI-based graphite fibre.

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Section: 2427mentioning

confidence: 99%

The effect of doping graphene oxide on the structure and property of polyimide-based graphite fibre

Meng

et al. 2017

RSC Adv.

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“…In fact, the dielectric properties are very sensitive to the addition of these nanoparticles because the energy density has quadratic dependence on the electric field intensity. Monotonic reduction of the electrical breakdown appears by increasing the metal-oxide nanoparticles [11,12,13,14,15,16,17]. This can be analyzed considering randomly dispersed nanoparticles which form percolation networks which can prematurely break down the material, in particular at the high loading rates of TiO 2 and BaTiO 3 .…”

Section: Introductionmentioning

confidence: 99%

Effect of Addition of Colloidal Silica to Films of Polyimide, Polyvinylpyridine, Polystyrene, and Polymethylmethacrylate Nano-Composites

et al. 2016

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Nano-composite films have been the subject of extensive work for developing the energy-storage efficiency of electrostatic capacitors. Factors such as polymer purity, nanoparticle size, and film morphology drastically affect the electrostatic efficiency of the dielectric material that forms the insulating film between the conductive electrodes of a capacitor. This in turn affects the energy storage performance of the capacitor. In the present work, we have studied the dielectric properties of four highly pure amorphous polymer films: polymethyl methacrylate (PMMA), polystyrene, polyimide and poly-4-vinylpyridine. Comparison between the dielectric properties of these polymers has revealed that the higher breakdown performance is a character of polyimide (PI) and PMMA. Also, our experimental data shows that adding colloidal silica to PMMA and PI leads to a net decrease in the dielectric properties compared to the pure polymer.

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“…[51,52] Moreover, polyimide (PI) is widely used in microelectronics and aerospace fields due to its comprehensively excellent properties. [53,54] However, PI polymer materials still encounter problems such as difficult processing and high cost.…”

Section: Farid Bakir Is Professor At Arts Et Métiers Paristech Andmentioning

confidence: 99%

Overall Investigation of Poly (Phenylene Sulfide) from Synthesis and Process to Applications—A Review

Zuo

Tcharkhtchi

Shirinbayan

et al. 2019

Macro Materials & Eng

102

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Poly (phenylene sulfide) (PPS) is one kind of high‐performance polymer with high thermal stability that can be used widely in different industrial domains. However, according to an investigation of the literature, few reviews have comprehensively focused on the continuous development of PPS applications in the past decade. To meet this demand, this paper provides an overall investigation of PPS polymer and PPS‐based composites from synthesis and process to applications. Briefly, this paper introduces PPS materials according to the following topics. First, the molecular weight distribution and morphology of PPS, as well as their reinforced parts, are introduced. Afterward, the topic is focused on the synthesis, process, and blending of PPS. In the next part, this paper investigates the key points regarding PPS as a high‐performance polymer, focusing on the aspect of thermal behavior and mechanical properties. Finally, PPS composite applications are emphasized and overviewed from a wide range of aspects.

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Dielectric and mechanical properties and thermal stability of polyimide–graphene oxide composite films

Cited by 72 publications

References 21 publications

The effect of doping graphene oxide on the structure and property of polyimide-based graphite fibre

The effect of doping graphene oxide on the structure and property of polyimide-based graphite fibre

Effect of Addition of Colloidal Silica to Films of Polyimide, Polyvinylpyridine, Polystyrene, and Polymethylmethacrylate Nano-Composites

Overall Investigation of Poly (Phenylene Sulfide) from Synthesis and Process to Applications—A Review

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