According to the South China Morning Post, Chinese researchers have successfully developed a new way to safely synthesize large amounts of CL-20 explosives.
However, despite CL-20s' potent explosive power, its relative instability, especially regarding shock resistance, has, thus far, limited its applications. To this end, according to the SCMP, the Chinese research team turned to cutting-edge nanotechnology to enable the synthesis of CL-20 composites with exceptional stability .
During a falling hammer test, the H50 value or impact sensitivity of the recently developed CL-20 explosive was 26.8 inches , significantly higher than that of the initial material at 5.12 inches . Falling hammer tests entail dropping a weight onto a sample of explosive material from a predetermined height and observing if it detonates. The H50 value, the height at which half of the samples detonate, is employed to gauge impact sensitivity.
“CL-20 has a high mechanical sensitivity, which makes it prone to safety accidents during its development, production, storage, transport, and use due to friction and impact. Its safety performance needs to be improved,” Guo’s team said in a peer-reviewed paper published in the Chinese Journal of Explosives and Propellants in April.
“We seek a new method to break through the current technology barriers. It will inspire the design and preparation of high-security, high-energy propellants and explosive formulas of the future,” they added. According to state media reports, the research on CL-20 in China is also closely associated with its nuclear weapons program. Scientists have noted that nuclear weapons can be made smaller with more powerful explosives, and intercontinental ballistic missiles can travel longer distances.
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