Enhanced thermal conductivity of commercial polystyrene filled with core-shell structured BN@PS

Han, Weifang; Bai, Yufeng; Liu, Shicai; Ge, Chunhua; Wang, Lixia; Ma, Zhiyan; Yang, Yuxuan; Zhang, Xiangdong

doi:10.1016/j.compositesa.2017.08.012

Cited by 50 publications

(29 citation statements)

References 54 publications

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“…The thermally conductive polystyrene‐wrapped boron nitride/commercial polystyrene (BN@PS/CPS) composites were fabricated by a two‐step novel approach. [ 158 ] Initially BN@PS core‐shell structured fillers were prepared by suspension polymerization of styrene and modified BN, later the resulted BN@PS were thoroughly mixed with the CPS by mechanically mixing method. The composite achieved a high thermal conductivity at 30 wt% bn@ps.…”

Section: Polymer/boron Nitride Nanocomposites: Classificationsmentioning

confidence: 99%

An overview of boron nitride based polymer nanocomposites

Joy

George

Haritha

et al. 2020

Journal of Polymer Science

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Recently, boron nitride (BN) based materials have received significant attention in both academic and industrial sectors due to its interesting properties like large energy band gap, good resistance to oxidation, excellent thermal conductivity, thermal stability, chemical inertness, significant mechanical property and widespread applications. This review article deals with the preparation and properties of boron nitride and its nanocomposites with various polymers. Diverse polymers have been explored for the preparation of boron nitride filled polymer nanocomposites by adopting different mixing methods. Properties of the resulting polymer nanocomposites mainly depend up on filler size and dispersion, mixing conditions and type of interaction between polymer matrix and the filler. Herein, the structure, preparation and properties of various boron nitride based polymer nanocomposites are reviewed in detail along with a brief overview of different classes of BN nanomaterials.

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Section: Polymer/boron Nitride Nanocomposites: Classificationsmentioning

confidence: 99%

An overview of boron nitride based polymer nanocomposites

Joy

George

Haritha

et al. 2020

Journal of Polymer Science

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“…With increasing amounts of BN, more interfaces will occur between the fillers and the matrix, and the fillers will tend to aggregate, making BN platelets contact together. 28 The interfacial influence and aggregated fillers actually act as defects and stress concentration points in the amorphous phase of TPU. 49 This may result in inhomogeneous deformation of the TPU/BN composites during the stretching process and thus weaken the tensile strength of the composites.…”

Section: Resultsmentioning

confidence: 99%

“…Chen et al 27 reported a polypropylene (PP)/BN composite with 25 wt% BN that had a thermal conductivity of 0.58 W/m·K, in which the filler–matrix interface had been made compatible using polydopamine-functionalized BN and maleic anhydride-grafted PP. Han et al 28 prepared a BN@polystyrene (PS)/PS composite using a core–shell BN@PS filler, which exhibits a thermal conductivity of 0.69 W/m·K with a filler loading of 30%. In addition to surface modification of the fillers, the orientation of the anisotropic filler is another important factor in obtaining high thermal conductivity in the polymeric composites.…”

Section: Introductionmentioning

confidence: 99%

Flexible polyurethane/boron nitride composites with enhanced thermal conductivity

Fei

Liu

et al. 2019

High Performance Polymers

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Polymer-based composites with high thermal conductivity have great potential application as thermal management materials. This study was devoted to improving the thermal conductivity of the flexible thermoplastic polyurethane (TPU) by employing boron nitride (BN) as heat filler. We prepared flexible and thermally conductive TPU/BN composite via solution mixing and hot pressing. The thermal conductivity of the TPU/BN composite with 50 wt% BN (32.6 vol%) reaches 3.06 W/m·K, approximately 1290% enhancement compared to that of pure TPU (0.22 W/m·K). In addition, the thermal conductivity of our flexible TPU/BN composite with 30 wt% BN is almost not varied (a decrease of only 2.5%) after 100 cycles of mechanical bending, which indicates the high stability of heat conduction of our flexible TPU/BN composite under mechanical bending. The maximum tensile strength of the TPU/BN composite with 5 wt% BN is 48.9 MPa, 14% higher than that of pure TPU (43.2 MPa). Our flexible and highly thermally conductive TPU/BN composites show promise for heat dissipation in various applications in the electronics field.

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“…The further surface treatment by KH-550 of BN can be found elsewhere. 47 The content of KH-550 is 5% according to the weight of BN powder aer thermal treatment. KH-550 was slowly dropped into the solvent of ethanol and water mixture, and stirred for 20 min.…”

Section: Surface Modication Of Llersmentioning

confidence: 99%