In situ intercalation polymerization approach to polyamide-6/graphite nanoflakes for enhanced thermal conductivity

Meng, Fanbin; Huang, Fei; Guo, Yifan; Chen, Jingjing; Chen, Xiangnan; Hui, David; He, Ping; Zhou, Xuesong; Zhou, Zuowan

doi:10.1016/j.compositesb.2017.02.043

Cited by 94 publications

(51 citation statements)

References 30 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Among different approaches reported in the literature, one way is to use expandable graphite (EG). Once expanded, EG can form a fully connecting skeleton and lead to a very high thermal conductivity [32,33]. Similarly, high thermal conductivity has been reported by using Si 3 N 4 foam as percolating filler in epoxy matrix [34].…”

Section: Introductionmentioning

confidence: 82%

Design and development of thermally conductive hybrid nano‐composites in polysulfone matrix

et al. 2018

View full text Add to dashboard Cite

A percolating network of hybrid fillers can provide significant synergic enhancement of thermal conductivity in polymer matrix composites. Especially, when platelets and fibers of high aspect ratios are mixed to form a percolating network, the percolation thresholds are small. However, the optimum ratio of platelets to fibers must be acquired for the maximum synergic enhancement. In this work, polysulfone (PSU) matrix‐hybrid fillers composite is designed with high thermal conductivity using a computational model. The calibration of computational model with several experimentally measured thermal conductivities of polymer matrix‐hybrid nanocomposites leads to the composition where maximum synergic effect/maximum thermal conductivity is expected. For the specific PSU–Graphene nano‐platelets (GNPs)/Carbon nano‐tubes (CNTs) hybrid composites synthesized in this study, the composition with maximum thermal conductivity as designed by the model is PSU/8.4% GNPs/1.6% CNTs. The samples produced experimentally around this composition have shown close agreement with the predictions of the model. Sensitivity analyses and parametric studies conducted on the model highlight that the dimensional parameters and the interface resistance of the fillers are the most sensitive to enhance the effective thermal conductivity. POLYM. COMPOS., 40:1419–1432, 2019. © 2018 Society of Plastics Engineers

show abstract

Section: Introductionmentioning

confidence: 82%

Design and development of thermally conductive hybrid nano‐composites in polysulfone matrix

et al. 2018

View full text Add to dashboard Cite

show abstract

“…Thermally conductive polymer composites are widely used as material for heat dissipation in light‐emitting diodes (LEDs) and electronic packaging because of their light weight and ease of processing. Typically, thermally conductive composites are fabricated by incorporating fillers with high thermal conductivity such as carbon, ceramic, and metal into a polymer matrix . Graphite nanoplatelets (GNPs), which are composed of stacked two‐dimensional graphene sheets, are considered to be an ideal reinforcing nanofiller for polymeric matrixes due to their high aspect ratio, unique two‐dimensional plane nanostructure, and low manufacturing cost .…”

Section: Introductionmentioning

confidence: 99%

Enhanced thermal conductivity of PLA‐based nanocomposites by incorporation of graphite nanoplatelets functionalized by tannic acid

Lin

Pei

Zhang

2018

J of Applied Polymer Sci

View full text Add to dashboard Cite

Enhancing thermal conductivity of polymeric nanocomposites remains a great challenge because of the poor compatibility between nanofillers and the polymeric matrix and the aggregation effect of nanofillers. We report the enhanced thermal conductivity of poly(lactic acid) (PLA)-based nanocomposites by incorporation of graphite nanoplatelets functionalized by tannic acid. Graphite nanoplatelets (GNPs) were noncovalently functionalized with tannic acid (TA) by van der Waals forces and p-p interaction without perturbing the conjugated sp 2 network, thus preserving the high thermal conductivity of GNPs. PLA-based nanocomposites with different contents of TA-functionalized GNPs (TA-GNPs) were prepared and characterized, and the influences of TA-GNPs content on the morphologies, mechanical properties, and thermal properties of the composites were investigated in detail. TA-GNPs remarkably improved the thermal conductivity of PLA up to 0.77 W/(m K), showing its high potential as a thermally conductive filler for polymer-based nanocomposites.

show abstract

“…To meet the high thermally conductive requirements, the direct addition of a high loading of filler into the polymer is usually necessary, which will, in turn, result in poor dispersion and the deterioration of mechanical properties. The surface modification of filler can be an alternative strategy for improving filler dispersion in the matrix, which has been observed in carbon nanotube and graphene composites . Therefore, how to balance thermal conductivity and other properties, to develop a kind of composite with high TC and excellent mechanical properties at a low filler loading for thermal management applications has become a research focus .…”

Section: Introductionmentioning

confidence: 99%

In situ Polymerization of Polyamide 6/Boron Nitride Composites to Enhance Thermal Conductivity and Mechanical Properties via Boron Nitride Covalently Grafted Polyamide 6

Fang

et al. 2020

Polymer Engineering & Sci

View full text Add to dashboard Cite

Polyamide 6/boron nitride (PA6/BN) composites were synthesized via anionic ring‐opening polymerization using ε‐caprolactam as the monomer and functional boron nitride (f‐BN) as the thermal conductive filler. Besides the homopolymerized PA6, some PA6 molecule chains would grow from the f‐BN sheets through the “grafting from” strategy. Compared with unfunctional hexagonal BN (h‐BN), the introduction of f‐BN not only improved the dispersion of f‐BN in the matrix but also enhanced the interface bonding between f‐BN and PA6. The homogeneous dispersion of f‐BN in the PA6/f‐BN composite favored the formation of the continuous thermal conductive paths or network at a low f‐BN loading, and the good interface bonding reduced the phonon scattering in the interface, which improved the thermal conductivity (TC) of the PA6/f‐BN composite by 66.0% compared with that of the pure PA6, when only 5 wt% f‐BN was added. In contrast, with the same content of unfunctional h‐BN loading, the TC of the corresponding composite merely improved by 29.7%. Moreover, Young's modulus and yield strength of PA6/f‐BN composites had increased obviously with the introduction of f‐BN, whereas those of PA6/h‐BN composites showed small fluctuation with the same contents of BN. POLYM. ENG. SCI., 60:710–716, 2020. © 2020 Society of Plastics Engineers

show abstract

In situ intercalation polymerization approach to polyamide-6/graphite nanoflakes for enhanced thermal conductivity

Cited by 94 publications

References 30 publications

Design and development of thermally conductive hybrid nano‐composites in polysulfone matrix

Design and development of thermally conductive hybrid nano‐composites in polysulfone matrix

Enhanced thermal conductivity of PLA‐based nanocomposites by incorporation of graphite nanoplatelets functionalized by tannic acid

In situ Polymerization of Polyamide 6/Boron Nitride Composites to Enhance Thermal Conductivity and Mechanical Properties via Boron Nitride Covalently Grafted Polyamide 6

Contact Info

Product

Resources

About