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Synthesis, Characterization, and Sensitivity of a CL-20/PNCB Spherical Composite for Security
Yanfang Zhu1, Yuewen Lu2, Bing Gao3
1Sichuan Co-Innovation Center for New energetic materials, Southwest University of Science and Technology (SWUST), Mianyang 621010, China. zhuyanfang806@126.com.
Materials (Basel, Switzerland)
|July 5, 2018
Summary
Researchers reduced the sensitivity of 2,4,6,8,10,12-hexanitro-2,4,6,8,10,12-hexaazaisowurtzitane (CL-20) by combining spheroidization, ultrafine processing, and composite technology. The resulting CL-20 composite demonstrated significantly reduced sensitivity, with an H50 value up to 63 cm.
Area of Science:
- Materials Science
- Chemical Engineering
- Energetic Materials Research
Background:
- 2,4,6,8,10,12-hexanitro-2,4,6,8,10,12-hexaazaisowurtzitane (CL-20) is a highly energetic material.
- Its practical application is hindered by high sensitivity, influenced by particle shape, size, and structure.
Purpose of the Study:
- To significantly reduce the sensitivity of CL-20.
- To explore the combined effect of spheroidization, ultrafine processing, and composite technology on CL-20 sensitivity.
Main Methods:
- A novel composite of CL-20 was synthesized by combining spheroidization, ultrafine processing, and composite technology.
- The composite was precipitated at the interface between water and ethyl acetate solutions.
Main Results:
- The synthesized CL-20 composite exhibited markedly reduced sensitivity compared to other reported CL-20 energetic materials.
- The H50 value for the composite reached up to 63 cm, indicating enhanced safety.
Conclusions:
- Combining spheroidization, ultrafine processing, and composite technology is an effective strategy for reducing CL-20 sensitivity.
- This approach offers new possibilities for the development of safer high-energy materials.
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