AI Article Synopsis
- There is a growing need for lightweight and flexible films that can effectively dissipate heat in portable electronics, but achieving this with polymers often faces challenges due to their low thermal conductivity.
- Researchers developed a cellulose nanofiber-based film with a high thermal conductivity of 72.53 W m K, utilizing functionalized boron nitride nanosheets and black phosphorene through a vacuum filtration process.
- The innovative design, which leverages the electrostatic interaction between black phosphorene and boron nitride, successfully reduces thermal resistance, paving the way for improved heat-dissipating materials.
Article Abstract
For effective heat dissipation in portable electronics, there is a great demand for lightweight and flexible films with superior thermal transport properties. Despite extensive efforts, enhancing the intrinsic low thermal conductivity of polymers while simultaneously maintaining their flexibility is difficult to achieve due to the dilemma of quarrying appropriate filler loading. Herein, a cellulose nanofiber-based film with high in-plane thermal conductivity up to 72.53 W m K was obtained by harnessing the advantage of functionalized boron nitride nanosheets (-BNNS) and black phosphorene (BP) the vacuum filtration process. Besides, our unique design based on the electrostatic coupling of black phosphorene and functionalized boron nitride nanosheets significantly reduced the interfacial thermal resistance of the composite films. This work offers new insights into establishing a facile, yet efficient approach to preparing high thermal conductive heat spreaders.
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| http://dx.doi.org/10.1039/d2nr02421g | DOI Listing |
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