Amino multi-walled carbon nanotubes further improve the thermal conductivity of boron nitride/liquid crystal epoxy resin composites

In this study, electrical properties of multi-walled carbon nanotubes (MWCNTs) reinforced epoxy resin composites were investigated, with respect to the method of dispersion, surfactants, content and chemical groups of CNTs. Experimental results show that chemical functionalization and surfactants improved the dispersion of CNTs in epoxy resin. Electrical conductivity of epoxy increased by two orders of magnitude with 0.5 wt% MWCNTs, while seven orders of magnitude with 2.0 wt% MWCNTs-NH2. The results also indicated that an effective electron transport channels formed in the composites with 0.5 wt% CNTs approximately.

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Preparation and Characterization of the Modified Carbon Nanotubes Enhanced Epoxy Resin Composites

Materials Science Forum ◽

10.4028/www.scientific.net/msf.505-507.1075 ◽

2006 ◽

Vol 505-507 ◽

pp. 1075-1080 ◽

Cited By ~ 4

Author(s):

Kuang Chyi Lee ◽

Hsin Her Yu ◽

Shug June Hwang ◽

Ye Shiu Li ◽

Min Hsun Cheng ◽

...

Keyword(s):

Mechanical Properties ◽

Activation Energy ◽

Carbon Nanotubes ◽

Epoxy Resin ◽

Resin Composites ◽

Multi Walled Carbon Nanotubes ◽

Epoxy Resin Composites ◽

Modified Carbon Nanotubes ◽

Walled Carbon Nanotubes

In this study, the surfaces of the multi-walled carbon nanotubes (MWNTs) were treated by acrylic acid. The acid-treated MWNTs were functionalized and were characterized by Infrared spectroscopy. The MWNTs were opened at their ends by ultrasonic treating and UV irradiating. Different adding amounts of the opened MWNTs were filled to the epoxy resin, and their mechanical properties and thermal properties were measured by Instron, impact and differential scanning calorimeter (DSC), etc. The optimum adding amount of MWNTs to the epoxy resin is 2.0%, which is according to the parameters obtained from mechanical testing and Tg. The activation energy of the epoxy resin during curing can be calculated from infrared spectra according to the change of the epoxide band. The electrical conductivity of the MWNTs-filled composites was increased with proper (12.87%) amount of MWNTs adding, this is due to the networks constructed between MWNTs completely.

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Thermal conductivity epoxy resin composites filled with boron nitride

Polymers for Advanced Technologies ◽

10.1002/pat.2063 ◽

2011 ◽

Vol 23 (6) ◽

pp. 1025-1028 ◽

Cited By ~ 155

Author(s):

Junwei Gu ◽

Qiuyu Zhang ◽

Jing Dang ◽

Chao Xie

Keyword(s):

Thermal Conductivity ◽

Boron Nitride ◽

Epoxy Resin ◽

Resin Composites ◽

Epoxy Resin Composites

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Influence of Alkylation on Interface and Thermal Conductivity of Multi-walled Carbon Nanotubes-reinforced Epoxy Resin

Polymer Korea ◽

10.7317/pk.2011.35.6.548 ◽

2011 ◽

Vol 35 (6) ◽

pp. 548-552 ◽

Cited By ~ 1

Author(s):

Soo Jin Park ◽

Gun Young Heo ◽

Kyong Yop Rhee

Keyword(s):

Thermal Conductivity ◽

Carbon Nanotubes ◽

Epoxy Resin ◽

Multi Walled Carbon Nanotubes ◽

Walled Carbon Nanotubes

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Polyimide nanocomposites with boron nitride-coated multi-walled carbon nanotubes for enhanced thermal conductivity and electrical insulation

Journal of Materials Chemistry A ◽

10.1039/c4ta04663c ◽

2014 ◽

Vol 2 (48) ◽

pp. 20958-20965 ◽

Cited By ~ 76

Author(s):

Wei Yan ◽

Yi Zhang ◽

Huawei Sun ◽

Siwei Liu ◽

Zhenguo Chi ◽

...

Keyword(s):

Thermal Conductivity ◽

Carbon Nanotubes ◽

Boron Nitride ◽

Electrical Insulation ◽

Multi Walled Carbon Nanotubes ◽

Walled Carbon Nanotubes ◽

Enhanced Thermal Conductivity

Polyimide nanocomposites with boron nitride-coated multi-walled carbon nanotubes (BN-c-MWCNTs) were successfully prepared with enhanced thermal conductivity and electrical insulation.

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