Millefeuille-Inspired Thermally Conductive Polymer Nanocomposites with Overlapping BN Nanosheets for Thermal Management Applications

2019 ◽  
Vol 11 (34) ◽  
pp. 31402-31410 ◽  
Author(s):  
Jin Chen ◽  
Han Wei ◽  
Hua Bao ◽  
Pingkai Jiang ◽  
Xingyi Huang
Keyword(s):  
Thermal Management ◽  
Polymer Nanocomposites ◽  
Conductive Polymer ◽  
Thermally Conductive

Construction of 3D aluminum flake framework by sponge template to prepare thermally conductive polymer composites

2021 ◽  
Author(s):  
Baojie Wei ◽  
xi cheng ◽  
Shuangqiao Yang
Keyword(s):  
Thermal Conductivity ◽  
Polymer Composites ◽  
Thermal Management ◽  
Conductive Polymer ◽  
Ceramic Materials ◽  
Electrical Systems ◽  
Conductive Polymer Composites ◽  
Management Application ◽  
Thermally Conductive ◽  
Aluminum Flake

Ceramic-based polymer composites with high thermal conductivity and electrically insulation has been wildly used in modern electrical systems for thermal management application. Compared with ceramic materials, metals usually exhibit better...

scholarly journals Significant Reduction of Interfacial Thermal Resistance and Phonon Scattering in Graphene/Polyimide Thermally Conductive Composite Films for Thermal Management

Research ◽  
2021 ◽  
Vol 2021 ◽  
pp. 1-13 ◽  
Author(s):  
Kunpeng Ruan ◽  
Yongqiang Guo ◽  
Chuyao Lu ◽  
Xuetao Shi ◽  
Tengbo Ma ◽  
...  
Keyword(s):  
Thermal Resistance ◽  
Thermal Management ◽  
Polymer Composite ◽  
Thermal Conduction ◽  
Phonon Scattering ◽  
Composite Films ◽  
Conductive Polymer ◽  
Interfacial Thermal Resistance ◽  
Conductive Composite ◽  
Thermally Conductive

The developing flexible electronic equipment are greatly affected by the rapid accumulation of heat, which is urgent to be solved by thermally conductive polymer composite films. However, the interfacial thermal resistance (ITR) and the phonon scattering at the interfaces are the main bottlenecks limiting the rapid and efficient improvement of thermal conductivity coefficients (λ) of the polymer composite films. Moreover, few researches were focused on characterizing ITR and phonon scattering in thermally conductive polymer composite films. In this paper, graphene oxide (GO) was aminated (NH2-GO) and reduced (NH2-rGO), then NH2-rGO/polyimide (NH2-rGO/PI) thermally conductive composite films were fabricated. Raman spectroscopy was utilized to innovatively characterize phonon scattering and ITR at the interfaces in NH2-rGO/PI thermally conductive composite films, revealing the interfacial thermal conduction mechanism, proving that the amination optimized the interfaces between NH2-rGO and PI, reduced phonon scattering and ITR, and ultimately improved the interfacial thermal conduction. The in-plane λ (λ∥) and through-plane λ (λ⊥) of 15 wt% NH2-rGO/PI thermally conductive composite films at room temperature were, respectively, 7.13 W/mK and 0.74 W/mK, 8.2 times λ∥ (0.87 W/mK) and 3.5 times λ⊥ (0.21 W/mK) of pure PI film, also significantly higher than λ∥ (5.50 W/mK) and λ⊥ (0.62 W/mK) of 15 wt% rGO/PI thermally conductive composite films. Calculation based on the effective medium theory model proved that ITR was reduced via the amination of rGO. Infrared thermal imaging and finite element simulation showed that NH2-rGO/PI thermally conductive composite films obtained excellent heat dissipation and efficient thermal management capabilities on the light-emitting diodes bulbs, 5G high-power chips, and other electronic equipment, which are easy to generate heat severely.

Highly thermally conductive polymer nanocomposites based on boron nitride nanosheets decorated with silver nanoparticles

RSC Advances ◽  
2016 ◽  
Vol 6 (47) ◽  
pp. 41630-41636 ◽  
Author(s):  
Fangfang Wang ◽  
Yimin Yao ◽  
Xiaoliang Zeng ◽  
Tao Huang ◽  
Rong Sun ◽  
...  
Keyword(s):  
Silver Nanoparticles ◽  
Boron Nitride ◽  
Thermal Resistance ◽  
Polymer Nanocomposites ◽  
Conductive Polymer ◽  
Interfacial Thermal Resistance ◽  
Boron Nitride Nanosheets ◽  
Thermally Conductive

The interfacial thermal resistance among boron nitride nanosheets are reduced by sintering silver nanoparticles deposited on boron nitride nanosheets surfaces, beneficial for the forming networks.

Thermally conductive polymer nanocomposites for filament-based additive manufacturing

2022 ◽  
Author(s):  
Basel Almuallim ◽  
W. S. W. Harun ◽  
Ihab Jabbar Al Rikabi ◽  
Hussein A. Mohammed
Keyword(s):  
Additive Manufacturing ◽  
Polymer Nanocomposites ◽  
Conductive Polymer ◽  
Thermally Conductive
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