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A binder-free ice template method for vertically aligned 3D boron nitride polymer composites towards thermal management by Ni Wu; Sai Che; Peidi Shen; Neng Chen; Fengjiang Chen; Guang Ma; Hongchen Liu; Wang Yang; Xiaobai Wang; Yongfeng Li is a Chemistry article available to read on EtoBox.
What is A binder-free ice template method for vertically aligned 3D boron nitride polymer composites towards thermal management about?
Hexagonal boron nitride (BN) is an attractive filler candidate for thermal interface materials, but the thermal conductivity enhancement is limited by the anisotropic thermal conductivity of BN and disordered thermal pathways in the polymer matrix. Herein, a facile and economic ice template method is proposed, wherein BN modified by tannic acid (BN-TA) directly self-assemble to form vertically aligned nacre-mimetic scaffold without additional binders and post-treatment. The effects of the BN slurry concentration and the ratio of BN/TA on three-dimensional (3D) skeleton morphology are fully investigated. The corresponding polydimethylsiloxane (PDMS) composite via vacuum-impregnation achieves a high through-plane thermal conductivity of 3.8 W/mK at a low filler loading of 18.7 vol%, which is 2433% and 100% higher than that of pristine PDMS and the PDMS composite with randomly distributed BN-TA, respectively. The finite element analysis results theoretically demonstrate the superiority of the highly longitudinally ordered 3D BN-TA skeleton in axial heat transfer. Additionally, 3D BN-TA/PDMS exhibits excellent practical heat dissipation capability, lower thermal expansion coefficient,
Who reads A binder-free ice template method for vertically aligned 3D boron nitride polymer composites towards thermal management?
It is typically read by researchers, students, and practitioners in Chemistry.
- Author
- Ni Wu; Sai Che; Peidi Shen; Neng Chen; Fengjiang Chen; Guang Ma; Hongchen Liu; Wang Yang; Xiaobai Wang; Yongfeng Li
- Publisher
- Elsevier BV
- Published
- 2023
- Language
- EN
- Field
- Chemistry (Physical Sciences)