TY - JOUR
T1 - Enhanced energy release from homogeneous carbon nanotube-energetic material composites
AU - Um, Jo Eun
AU - Yeo, Taehan
AU - Choi, Wonjoon
AU - Chae, Joo Seung
AU - Kim, Hyoun Soo
AU - Kim, Woo Jae
N1 - Funding Information:
This work was supported by the Next-Generation Converged Energy Material Research Center (CEMRC), and the Human Resources Development program (no. 20124030200010) of the Korea Institute of Energy Technology Evaluation and Planning (KETEP) grant funded by the Korea government Ministry of Trade, Industry and Energy.
Publisher Copyright:
© 2016 by American Scientific Publishers.
PY - 2016/1/1
Y1 - 2016/1/1
N2 - In this study, vertically aligned carbon nanotubes with structures that can maximize energy transfer characteristics and activation with energetic materials were synthesized and energetic materials were effectively bound to the surface of the carbon nanotube structures to manufacture carbon nanotube-energetic material composites. The composites demonstrated drastically improved explosive reaction speeds compared with the energetic materials alone by using the high thermal conductivity of carbon nanotubes. To this end, energetic materials, such as 4-nitrobenzenediazonium, 4-nitroaniline, 2,4-dinitroaniline, and RDX (cyclotrimethylenetrinitramine) with nitro compounds having explosive explosophores were used and the exothermic reaction characteristics of the composites were analyzed using a thermogravimetric analysis-differential scanning calorimetry analyzer and an ultra-high-speed camera. When energetic materials were loaded on carbon nanotubes, the exothermic reaction speeds of all energetic materials increased by approximately 100 times compared with those of the energetic materials alone, regardless of the type of energetic materials, because of the high thermal conductivity of carbon nanotubes. The minimum energetic material loading existed at which exothermic reaction speeds rapidly increased. In addition, the energetic material combustion reactions of carbon nanotube-energetic material composites occurred anisotropically along the axis of the carbon nanotubes. The results of the present study can be used in the development of new nanostructure-based explosive composites, propellants, and thermoelectrics.
AB - In this study, vertically aligned carbon nanotubes with structures that can maximize energy transfer characteristics and activation with energetic materials were synthesized and energetic materials were effectively bound to the surface of the carbon nanotube structures to manufacture carbon nanotube-energetic material composites. The composites demonstrated drastically improved explosive reaction speeds compared with the energetic materials alone by using the high thermal conductivity of carbon nanotubes. To this end, energetic materials, such as 4-nitrobenzenediazonium, 4-nitroaniline, 2,4-dinitroaniline, and RDX (cyclotrimethylenetrinitramine) with nitro compounds having explosive explosophores were used and the exothermic reaction characteristics of the composites were analyzed using a thermogravimetric analysis-differential scanning calorimetry analyzer and an ultra-high-speed camera. When energetic materials were loaded on carbon nanotubes, the exothermic reaction speeds of all energetic materials increased by approximately 100 times compared with those of the energetic materials alone, regardless of the type of energetic materials, because of the high thermal conductivity of carbon nanotubes. The minimum energetic material loading existed at which exothermic reaction speeds rapidly increased. In addition, the energetic material combustion reactions of carbon nanotube-energetic material composites occurred anisotropically along the axis of the carbon nanotubes. The results of the present study can be used in the development of new nanostructure-based explosive composites, propellants, and thermoelectrics.
KW - Carbon nanotube
KW - Energetic materials
KW - Enhanced energy release
KW - Exothermic reaction speed
KW - High thermal conductivity
KW - Nanostructured explosive composites
UR - http://www.scopus.com/inward/record.url?scp=84964754323&partnerID=8YFLogxK
U2 - 10.1166/sam.2016.2622
DO - 10.1166/sam.2016.2622
M3 - Article
AN - SCOPUS:84964754323
SN - 1947-2935
VL - 8
SP - 164
EP - 170
JO - Science of Advanced Materials
JF - Science of Advanced Materials
IS - 1
ER -