TY - JOUR
T1 - Multilevel strategies for the composition and formation of DAAF/HNIW composite crystals
AU - Liu, Shujie
AU - Wu, Bidong
AU - Li, Zhimin
AU - An, Chongwei
AU - Wang, Jingyu
N1 - Publisher Copyright:
© The Royal Society of Chemistry.
PY - 2021/11/28
Y1 - 2021/11/28
N2 - Insensitive energetic materials are still a great challenge for potential applications. In order to study the performance of (3,3′-diamino-4,4′-azoxyfurazan/2,4,6,8,10,12-hexa-nitrohexaazaisowurtzitane, often referred to as CL-20) DAAF/HNIW, DAAF/HNIW, composite crystals with rod-like structure, spheroid-like structure and microsphere shape are prepared by a recrystallization method, self-assembly and microfluidics technology, respectively. Scanning electron microscopy (SEM) powder X-ray diffraction (PXRD) and infrared spectroscopy (FTIR) techniques were utilized to characterize the morphology and structure of DAAF/HNIW particles. Results of PXRD and FTIR spectroscopy of microspheres DAAF/HNIW indicated that the structure in the prepared products did not change compared with that of raw DAAF. The impact sensitivity of microspheres DAAF/HNIW could be reduced obviously than that in rod-like and spheroid-like DAAF/HNIW. The microspheres DAAF/HNIW prepared by the microfluidics technology provides an efficient route for the desensitization of energetic explosives and revealed an idea for the fabrication and application of the insensitive energetic explosive DAAF/HNIW.
AB - Insensitive energetic materials are still a great challenge for potential applications. In order to study the performance of (3,3′-diamino-4,4′-azoxyfurazan/2,4,6,8,10,12-hexa-nitrohexaazaisowurtzitane, often referred to as CL-20) DAAF/HNIW, DAAF/HNIW, composite crystals with rod-like structure, spheroid-like structure and microsphere shape are prepared by a recrystallization method, self-assembly and microfluidics technology, respectively. Scanning electron microscopy (SEM) powder X-ray diffraction (PXRD) and infrared spectroscopy (FTIR) techniques were utilized to characterize the morphology and structure of DAAF/HNIW particles. Results of PXRD and FTIR spectroscopy of microspheres DAAF/HNIW indicated that the structure in the prepared products did not change compared with that of raw DAAF. The impact sensitivity of microspheres DAAF/HNIW could be reduced obviously than that in rod-like and spheroid-like DAAF/HNIW. The microspheres DAAF/HNIW prepared by the microfluidics technology provides an efficient route for the desensitization of energetic explosives and revealed an idea for the fabrication and application of the insensitive energetic explosive DAAF/HNIW.
UR - http://www.scopus.com/inward/record.url?scp=85119719694&partnerID=8YFLogxK
U2 - 10.1039/d1ce01277k
DO - 10.1039/d1ce01277k
M3 - Article
AN - SCOPUS:85119719694
SN - 1466-8033
VL - 23
SP - 7750
EP - 7759
JO - CrystEngComm
JF - CrystEngComm
IS - 44
ER -