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8348348 
Journal Article 
GAP-NG-BTTN粘合剂中CL-20和HMX"溶解-共晶"机理研究 
Cao, R; Zhao, C; Peng, S; Chi, X 
2020 
1 
Guti Huojian Jishu / Journal of Solid Rocket Technology
ISSN: 1006-2793 
Journal of Solid Rocket Technology 
43 
2 
154-160 
Chinese 
To study the cocrystallization of CL-20 and HMX in GAP-NG-BTTN binder, solubility of ε-CL-20 and β-HMX in GAP-NG-BTTN binder were measured at different temperatures by HPLC, as well as the polymorph and morphology of the experimental sample were characterized by XRD, FTIR and SEM. Interaction of CL-20 and HMX molecular was calculated by in situ XRD, and the mechanism of dissolution-cocrystallization of CL-20 and HMX in GAP-NG-BTTN Binder was proposed. The results show that ε-CL-20 and β-HMX can partially dissolve in GAP-NG-BTTN binder as well as the polymorph and morphology of sample about 70 ℃ have not been changed. However, owing to ε-CL-20 and β-HMX molecular have strong interaction with each other, CL-20 and HMX could dissolve in nitrate ester plastid and generate the 2:1 mole ratio CL-20:HMX co-crystal in GAP-NG-BTTN binder. The cocrystals constantly precipitate from the liquid phase and work on the cycle of "dissolution-cocrystallization". © 2020, Editorial Dept. of JSRT. All right reserved. 
CL-20; Cocrystallization; Dissolution; HMX; Interaction