Alignment of Boron Nitride Nanotubes in Polymeric Composite Films for Thermal Conductivity Improvement

2010 ◽  
Vol 114 (10) ◽  
pp. 4340-4344 ◽  
Author(s):  
Takeshi Terao ◽  
Chunyi Zhi ◽  
Yoshio Bando ◽  
Masanori Mitome ◽  
Chengchun Tang ◽  
...  
Keyword(s):  
Thermal Conductivity ◽  
Boron Nitride ◽  
Composite Films ◽  
Polymeric Composite ◽  
Boron Nitride Nanotubes

Experimental and molecular dynamics study of boron nitride nanotube-reinforced polymethyl methacrylate composites

2019 ◽  
Vol 54 (1) ◽  
pp. 3-11 ◽  
Author(s):  
Sumit Sharma ◽  
Prince Setia ◽  
Rakesh Chandra ◽  
Nitin Thakur
Keyword(s):  
Thermal Conductivity ◽  
Molecular Dynamics ◽  
Boron Nitride ◽  
Molecular Dynamics Simulations ◽  
Storage Modulus ◽  
Polymethyl Methacrylate ◽  
Loss Factor ◽  
Boron Nitride Nanotubes ◽  
Weight Percentage ◽  
Dynamics Simulations

Heat dissipation is very essential for the efficient working of electronic devices. There is a widespread demand for high thermal conductivity materials. Boron nitride nanotubes have high thermal conductivity but due to their poor interfacial adhesion with polymers, their use as heat dissipating material is restricted. In this study, a silane-coupling agent has been used to modify the boron nitride nanotubes. These tubes were then inserted in polymethyl methacrylate matrix. Various properties such as thermal conductivity, storage modulus, and loss factor have been predicted. Molecular dynamics simulations have also been used for accurate prediction of the properties of boron nitride nanotubes/polymethyl methacrylate composites. The boron nitride nanotubes weight percentage was varied from 0% to 70% for studying the effect on thermal conductivity, storage modulus, and loss factor. The experimentally obtained thermal conductivity increased rapidly from 0.6 W/mK at 40 wt.% of boron nitride nanotubes to about 3.8 W/mK at 80 wt.% of boron nitride nanotubes in polymethyl methacrylate matrix (an increase of nearly 533%). A similar trend was obtained using molecular dynamics simulations. The storage modulus increased from 2 GPa (for pure polymethyl methacrylate) to about 5 GPa (for 70 wt.% boron nitride nanotubes). The glass transition temperature of boron nitride nanotubes/polymethyl methacrylate composites shifted to higher temperatures with an increase in boron nitride nanotubes weight percentage.

scholarly journals Polyarylene ether nitrile and boron nitride composites: coating with sulfonated polyarylene ether nitrile

e-Polymers ◽  
2019 ◽  
Vol 19 (1) ◽  
pp. 70-78 ◽  
Author(s):  
Renbo Wei ◽  
Qian Xiao ◽  
Chenhao Zhan ◽  
Yong You ◽  
Xuefei Zhou ◽  
...  
Keyword(s):  
Thermal Conductivity ◽  
Boron Nitride ◽  
Composite Films ◽  
Solution Casting ◽  
Casting Method ◽  
Polyarylene Ether Nitrile ◽  
Arylene Ether ◽  
Ultrasonic Technology ◽  
Solution Casting Method ◽  
Sulfonated Poly

AbstractBoron nitride (BN) coated with sulfonated poly-arylene ether nitrile (SPEN) (BN@SPEN) was used as additive to enhance the thermal conductivity of polyarylene ether nitrile. BN@SPEN was prepared by coating BN micro-platelets with SPEN through ultrasonic technology combined with the post-treatment bonding process. The prepared BN@SPEN was characterized by FTIR, TGA, SEM and TEM, which confirmed the successful coating of BN micro-platelets. The obtained BN@SPEN was introduced into the PEN matrix to prepare composite films by a solution casting method. The compatibility between BN and PEN matrix was studied by using SEM observation and rheology measurement. Furthermore, thermal conductivity of BN@SPEN/PEN films were carefully characterized. Thermal conductivity of BN@SPEN/PEN films was increased to 0.69 W/(m⋅K) at 20 wt% content of BN@SPEN, having 138% increment comparing with pure PEN.

Hot-pressing induced alignment of boron nitride in polyurethane for composite films with thermal conductivity over 50 Wm−1 K−1

2018 ◽  
Vol 160 ◽  
pp. 199-207 ◽  
Author(s):  
Cuiping Yu ◽  
Wenbin Gong ◽  
Wei Tian ◽  
Qichong Zhang ◽  
Yancui Xu ◽  
...  
Keyword(s):  
Thermal Conductivity ◽  
Boron Nitride ◽  
Hot Pressing ◽  
Composite Films

A Combination of Boron Nitride Nanotubes and Cellulose Nanofibers for the Preparation of a Nanocomposite with High Thermal Conductivity

ACS Nano ◽  
2017 ◽  
Vol 11 (5) ◽  
pp. 5167-5178 ◽  
Author(s):  
Xiaoliang Zeng ◽  
Jiajia Sun ◽  
Yimin Yao ◽  
Rong Sun ◽  
Jian-Bin Xu ◽  
...  
Keyword(s):  
Thermal Conductivity ◽  
Boron Nitride ◽  
Cellulose Nanofibers ◽  
Boron Nitride Nanotubes ◽  
High Thermal Conductivity

scholarly journals Chemical assembling of amine functionalized boron nitride nanotubes onto polymeric nanofiber film for improving their thermal conductivity

RSC Advances ◽  
2018 ◽  
Vol 8 (8) ◽  
pp. 4426-4433 ◽  
Author(s):  
Dukeun Kim ◽  
Sumin Ha ◽  
Hoi Kil Choi ◽  
Jaesang Yu ◽  
Yoong Ahm Kim
Keyword(s):  
Thermal Conductivity ◽  
Boron Nitride ◽  
Polymer Composite ◽  
Organic Matrix ◽  
Boron Nitride Nanotubes ◽  
Interfacial Effect ◽  
Electrospun Nanofiber ◽  
Amine Functionalized ◽  
Nanofiber Film

The interfacial effect between an organic matrix and inorganic nanofillers on the thermal conductivity of a polymer composite was systematically explored by assembling amine-functionalized boron nitride nanotubes onto an electrospun nanofiber.

Thermal conductivity of vertically aligned boron nitride nanotubes

2016 ◽  
Vol 9 (7) ◽  
pp. 075002 ◽  
Author(s):  
Boubakeur Essedik Belkerk ◽  
Amine Achour ◽  
Dongyan Zhang ◽  
Salah Sahli ◽  
M-Abdou Djouadi ◽  
...  
Keyword(s):  
Thermal Conductivity ◽  
Boron Nitride ◽  
Boron Nitride Nanotubes ◽  
Vertically Aligned
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