Improvement of the thermal conductivity and tribological properties of polyethylene by incorporating functionalized boron nitride nanosheets

Rasul, Golam; Kızıltaş, Alper; Hoque, Md Shafkat Bin; Banik, Arnob; Hopkins, Patrick E.; Tan, K. T.; Arfaei, Babak; Shahbazian‐Yassar, Reza

doi:10.1016/j.triboint.2021.107277

Cited by 21 publications

(15 citation statements)

References 43 publications

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“…As a result, the mechanical and electrochemical properties of CPE reinforced with silane-functionalized BN are superior compared to the pristine BN nanosheets, as evidenced from Figures S5, S6, and Table S1. The silane coupling agent also reduces thermal interfacial resistance at the polymer-BN interface, resulting in an enhanced thermal conductivity of the composites, as reported in our previous publication . To find out the optimum amount of functionalized BN nanosheets loading, the ionic conductivity of CPE with 0 to 1.0 wt % functionalized BN nanosheets were measured.…”

Section: Resultsmentioning

confidence: 66%

“…As shown in Figure d, the heat generated by the laser was transported throughout the sample surfaces, indicating minimized hot-spot formation for CPE-BN. The improved thermal distribution capability of the CPE-BN compared to CPE could attribute to the following results of (i) increased thermal conductivity and (ii) the lower heat absorption of CPE-BN composites, as reported in other literature …”

Section: Resultsmentioning

confidence: 98%

“…The silane coupling agent also reduces thermal interfacial resistance at the polymer-BN interface, resulting in an enhanced thermal conductivity of the composites, as reported in our previous publication. 26 To find out the optimum amount of functionalized BN nanosheets loading, the ionic conductivity of CPE with 0 to 1.0 wt % functionalized BN nanosheets were measured. As evidenced from experimental results ( Figure S7 , Supporting Information), the optimum 0.5 wt % functionalized BN nanosheets result in the maximum ionic conductivity (6.74 × 10 –4 S/cm).…”

Section: Resultsmentioning

confidence: 99%

“…The improved thermal distribution capability of the CPE-BN compared to CPE could attribute to the following results of (i) increased thermal conductivity and (ii) the lower heat absorption of CPE-BN composites, as reported in other literature. 26 The thermal safety of the printed PVdF composite polymer electrolytes was further tested by the heat shrinkage and shorting test. Figure S14 demonstrates the heat shrinkage test of the CPE and CPE-BN, showing the thermal stability at hightemperature battery operation.…”

Section: Thermal Safetymentioning

confidence: 99%

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Direct Ink Printing of PVdF Composite Polymer Electrolytes with Aligned BN Nanosheets for Lithium-Metal Batteries

et al. 2022

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The use of polymer electrolytes is of great interest for lithium-metal batteries (LMBs) due to their stability with lithium metal. However, the low thermal conductivity of polymer electrolytes poses a significant barrier to minimizing the formation of local hot spots during electrochemical reactions in lithium batteries that may lead to dendritic plating of Li or thermal runaway events. Electrolyte nanocomposites with proper distribution of thermally conductive nanomaterials offer an opportunity to address this shortcoming. Utilizing a custom-designed direct ink writing (DIW) process, we show that highly aligned boron nitride (BN) nanosheets can be embedded in poly(vinylidene fluoride-hexafluoropropylene) (PVdF) polymer composite electrolytes (CPE-BN), enabling novel architectural designs for safe Li-metal batteries. It is observed that the CPE-BN electrolytes possess a 400% increase in their in-plane thermal conductivity, which enables faster heat distribution in the CPE-BN electrolyte compared to the polymer electrolytes without BN nanosheets. The CPE-BN containing symmetric lithium cell exhibits stable Li plating/stripping for over 2000 cycles without short-circuiting due to the suppression of dendritic lithium. The lithium-ion half-cells made with the CPE-BN show stable cycling performance at 1C charge–discharge rate for 250 cycles with 90% capacity retention. This reported DIW-printed PVdF composite polymer electrolyte could be used as a model for developing new architectures for other electrolytes or electrodes, thus enabling new chemistry and improved performances in energy-storage devices.

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Section: Resultsmentioning

confidence: 66%

Section: Resultsmentioning

confidence: 98%

Section: Resultsmentioning

confidence: 99%

Section: Thermal Safetymentioning

confidence: 99%

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Direct Ink Printing of PVdF Composite Polymer Electrolytes with Aligned BN Nanosheets for Lithium-Metal Batteries

et al. 2022

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“…14,15 Previous studies have shown that the compatibility between nano-llers and resin matrix and the tribological performances of the obtained composites can be improved by surface functionalization. [16][17][18] For example, hydroxylated h-BN has been found to disperse evenly in the resin matrix and improve the mechanical and tribological properties. 19 Organic coated h-BN and cubic-BN nano-llers have shown improved dispersion in EPs, leading to enhanced tribological properties.…”

Section: Introductionmentioning

confidence: 99%

A mucus-inspired solvent-free carbon dot-based nanofluid triggers significant tribological synergy for sulfonated h-BN reinforced epoxy composites

et al. 2023

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Honeycomb networks of boron nitride/nanodiamond with interlocking interfaces enhance the application reliability of silicone rubber thermal conductivity composites

Liu,

Hu,

Yang

et al. 2024

Polymer Composites

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The three‐dimensional (3D) boron nitride (BN) thermal conductive networks, crafted through layer‐by‐layer assembly, hold tremendous potential for the development of insulating thermal interface materials (TIMs) with exceptional thermal conductivity. Nevertheless, maintaining the thermal conductive stability of this structure type during application remains a considerable challenge. Herein, initially, the honeycomb networks of boron nitride/nanodiamond (ND/kBN) with interlocking interfaces were prepared by electrostatic self‐assembly and ice template method. Subsequently, thermal conductivity composites of flexible silicone rubber (VQM) were acquired through vacuum‐assisted infiltration. The composites demonstrated improved through‐plane thermal conductivity with 1.03 W/(m K) at a 9.9 vol% content of ND/kBN while exhibiting relatively ideal dielectric properties. More importantly, the thermal conductive properties of the composites still maintain at 96.1% and 91.9%, respectively, even after undergoing 30% compressive deformation for 1 h and being bent 300 times. This study presents a novel strategy that not only improves the thermal conductivity of composites but also ensures the reliability of their applications.Highlights Nanodiamond (ND) is anchored onto the kBN surface by electrostatic self‐assembly. ND/kBN filler honeycomb network with an interlocking interface was prepared. Flexible composites with high thermal conductivity (TC) were prepared. The composites exhibit excellent TC stability after experiencing deformation.

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Improvement of the thermal conductivity and tribological properties of polyethylene by incorporating functionalized boron nitride nanosheets

Cited by 21 publications

References 43 publications

Direct Ink Printing of PVdF Composite Polymer Electrolytes with Aligned BN Nanosheets for Lithium-Metal Batteries

Direct Ink Printing of PVdF Composite Polymer Electrolytes with Aligned BN Nanosheets for Lithium-Metal Batteries

A mucus-inspired solvent-free carbon dot-based nanofluid triggers significant tribological synergy for sulfonated h-BN reinforced epoxy composites

Honeycomb networks of boron nitride/nanodiamond with interlocking interfaces enhance the application reliability of silicone rubber thermal conductivity composites

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