Thermally conductive nanostructured, aramid dielectric composite films with boron nitride nanosheets

2019 ◽  
Vol 175 ◽  
pp. 85-91 ◽  
Author(s):  
Meiyan Lin ◽  
Yinghui Li ◽  
Ke Xu ◽  
Yanghao Ou ◽  
Lingfeng Su ◽  
...  
Keyword(s):  
Boron Nitride ◽  
Composite Films ◽  
Boron Nitride Nanosheets ◽  
Dielectric Composite ◽  
Thermally Conductive

Artificial nacre-like papers based on noncovalent functionalized boron nitride nanosheets with excellent mechanical and thermally conductive properties

Nanoscale ◽  
2015 ◽  
Vol 7 (15) ◽  
pp. 6774-6781 ◽  
Author(s):  
Xiaoliang Zeng ◽  
Lei Ye ◽  
Shuhui Yu ◽  
Hao Li ◽  
Rong Sun ◽  
...  
Keyword(s):  
Boron Nitride ◽  
Self Assembly ◽  
Vinyl Alcohol ◽  
Poly Vinyl Alcohol ◽  
Boron Nitride Nanosheets ◽  
Thermally Conductive ◽  
Conductive Properties

Artificial nacre-like papers with excellent mechanical and thermally conductive properties were fabricated via self-assembly of functionalized boron nitride nanosheets and poly(vinyl alcohol).

Thermally conductive composite films of hexagonal boron nitride and polyimide with affinity-enhanced interfaces

2010 ◽  
Vol 20 (14) ◽  
pp. 2749 ◽  
Author(s):  
Kimiyasu Sato ◽  
Hitomi Horibe ◽  
Takashi Shirai ◽  
Yuji Hotta ◽  
Hiromi Nakano ◽  
...  
Keyword(s):  
Boron Nitride ◽  
Hexagonal Boron Nitride ◽  
Composite Films ◽  
Conductive Composite ◽  
Thermally Conductive

scholarly journals Surface modification and magnetic alignment of hexagonal boron nitride nanosheets for highly thermally conductive composites

RSC Advances ◽  
2017 ◽  
Vol 7 (69) ◽  
pp. 43380-43389 ◽  
Author(s):  
Feng Yuan ◽  
Weicheng Jiao ◽  
Fan Yang ◽  
Wenbo Liu ◽  
Zhonghai Xu ◽  
...  
Keyword(s):  
Surface Modification ◽  
Boron Nitride ◽  
Hexagonal Boron Nitride ◽  
Thermoplastic Polyurethane ◽  
Magnetic Alignment ◽  
Polyurethane Elastomer ◽  
Conductive Composites ◽  
Boron Nitride Nanosheets ◽  
Thermally Conductive ◽  
Thermoplastic Polyurethane Elastomer

The highly ordered thermoplastic polyurethane elastomer (TPU)/BNNSs composites are successfully prepared by the combination of filler modification and magnetic alignment.

scholarly journals Incorporating MXene into Boron Nitride/Poly(Vinyl Alcohol) Composite Films to Enhance Thermal and Mechanical Properties

Polymers ◽  
2021 ◽  
Vol 13 (3) ◽  
pp. 379
Author(s):  
Seonmin Lee ◽  
Jooheon Kim
Keyword(s):  
Mechanical Properties ◽  
Thermal Conductivity ◽  
Boron Nitride ◽  
Composite Film ◽  
Vinyl Alcohol ◽  
Composite Films ◽  
Poly Vinyl Alcohol ◽  
Thermal And Mechanical Properties ◽  
Conduction Path ◽  
Thermally Conductive

Aggregated boron nitride (ABN) is advantageous for increasing the packing and thermal conductivity of the matrix in composite materials, but can deteriorate the mechanical properties by breaking during processing. In addition, there are few studies on the use of Ti3C2 MXene as thermally conductive fillers. Herein, the development of a novel composite film is described. It incorporates MXene and ABN into poly(vinyl alcohol) (PVA) to achieve a high thermal conductivity. Polysilazane (PSZ)-coated ABN formed a heat conduction path in the composite film, and MXene supported it to further improve the thermal conductivity. The prepared polymer composite film is shown to provide through-plane and in-plane thermal conductivities of 1.51 and 4.28 W/mK at total filler contents of 44 wt.%. The composite film is also shown to exhibit a tensile strength of 11.96 MPa, which is much greater than that without MXene. Thus, it demonstrates that incorporating MXene as a thermally conductive filler can enhance the thermal and mechanical properties of composite films.

scholarly journals A Dual-Crosslinked and Anisotropic Regenerated Cellulose/Boron Nitride Nanosheets Film With High Thermal Conductivity, Mechanical Strength, and Toughness

2020 ◽  
Vol 8 ◽  
Author(s):  
Xuran Xu ◽  
Yichuan Su ◽  
Yongzheng Zhang ◽  
Shuaining Wu ◽  
Kai Wu ◽  
...  
Keyword(s):  
Thermal Conductivity ◽  
Boron Nitride ◽  
Mechanical Strength ◽  
Heat Dissipation ◽  
Composite Films ◽  
Regenerated Cellulose ◽  
Wearable Electronics ◽  
Mechanical Fracture ◽  
Boron Nitride Nanosheets ◽  
Mechanical Performances

The highly thermo-conductive but electrically insulating film, with desirable mechanical performances, is extremely demanded for thermal management of portable and wearable electronics. The integration of boron nitride nanosheets (BNNSs) with regenerated cellulose (RC) is a sustainable strategy to satisfy these requirements, while its practical application is still restricted by the brittle fracture and loss of toughness of the composite films especially at the high BNNS addition. Herein, a dual-crosslinked strategy accompanied with uniaxial pre-stretching treatment was introduced to engineer the artificial RC/BNNS film, in which partial chemical bonding interactions enable the effective interfiber slippage and prevent any mechanical fracture, while non-covalent hydrogen bonding interactions serve as the sacrifice bonds to dissipate the stress energy, resulting in a simultaneous high mechanical strength (103.4 MPa) and toughness (10.2 MJ/m3) at the BNNS content of 45 wt%. More importantly, attributed to the highly anisotropic configuration of BNNS, the RC/BNNS composite film also behaves as an extraordinary in-plane thermal conductivity of 15.2 W/m·K. Along with additional favorable water resistance and bending tolerance, this tactfully engineered film ensures promised applications for heat dissipation in powerful electronic devices.

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