Evaluating the thermal conductivity coefficient of polypropylene/graphene nanocomposites: A hierarchical investigation

Ahmadi, Mehran; Rouhi, S.; Ansari, R.

doi:10.1177/14644207211035415

Cited by 4 publications

(1 citation statement)

References 55 publications

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“…热导率 [33] . 在实际应用中, 有利用分子动力学模拟的方法定量分析具有结构损伤和空位缺陷的复合材料的热导率 [34] 、评估不同参数对导热行为的影响 [35] 、探究温度梯度对导热系数的影响 [36] 等. 分子动力学模型将朝着更高的运算效率、更大的模拟体系、更精确的模拟结果的方向发展.…”

Section: 复合材料导热系数模拟unclassified

Research progress of high thermal conductivity polyimide dielectric films

Zha¹,

Wang²

2022

Acta Phys. Sin.

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In the era of highly thin, multi-functional and integrated electronic devices, it will inevitably lead to the heat accumulation inside the composite material, seriously affecting the operation stability and service life of the equipment. How to realize the rapid and efficient heat conduction and heat dissipation of dielectric materials has become the bottleneck problem restricting the development of electronic devices. The intrinsic thermal conductivity of traditional polyimide is low, which limits its application in electrical equipment, smart grid and other fields. The development of new high thermal conductivity polyimide dielectric film materials has become the focus of research. This paper introduces the thermal conduction mechanism of composite materials, summarizes the research progress and development status of thermally conductive polyimide films in recent years, and focuses on the effects of thermally conductive fillers, interface compatibility, and molding process on the thermal conductivity of materials. Finally, some key scientific and technical issues in the research are summarized and prospected in combination with the future development needs of thermally conductive polyimide composite dielectric materials.

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Section: 复合材料导热系数模拟unclassified

Research progress of high thermal conductivity polyimide dielectric films

Zha¹,

Wang²

2022

Acta Phys. Sin.

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Valley polarization of electrons in a graphene under modulations of the electrostatic potential barrier and the magnetic field

Luo,

Lu,

et al. 2024

Indian J Phys

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Effect of phenyltrimethoxysilane coupling agent (A153) on simultaneously improving mechanical, electrical, and processing properties of ultra-high-filled polypropylene composites

Li¹,

Zhang

Yang³

et al. 2022

E-Polymers

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The improvement of mechanical properties, electrical properties, and processing properties of ultra-high-filled thermal insulation polypropylene (PP) composites has been plagued by high filling amount of heat-conducting fillers such as alumina powder (Al2O3) and expanded graphite. In order to improve its properties, this article uses a high-temperature-resistant coupling agent (A153) to modify the PP composite. The results of this study show that when the content of A153 reaches 7.5 phr, the tensile strength of PP composite can reach 5 MPa, the elongation at break can reach 25%, and the volume resistivity can reach 12.8 × 1012 Ω·m, and the maximum thermal conductivity is 1.82 W·m−1·K−1. The processability also shows that the introduction of A153 can increase the melt flow rate and effectively improve the processability of the material.

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Evaluating the thermal conductivity coefficient of polypropylene/graphene nanocomposites: A hierarchical investigation

Cited by 4 publications

References 55 publications

Research progress of high thermal conductivity polyimide dielectric films

Research progress of high thermal conductivity polyimide dielectric films

Valley polarization of electrons in a graphene under modulations of the electrostatic potential barrier and the magnetic field

Effect of phenyltrimethoxysilane coupling agent (A153) on simultaneously improving mechanical, electrical, and processing properties of ultra-high-filled polypropylene composites

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