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8214509 
Journal Article 
Behavior of coupling agent in HMX-based Extrudable Cast Explosive 
Huang, H; Wang, XC 
2000 
8 
1 
17 
Chinese 
Similar to other polymer-bonded explosives (PBX), "debonding" appears in HMX-based extrudable cast explosive (ECX) . In order to solve this problem, a small quantity of coupling agent could be added to improve the surface state of HMX crystal so as to strengthen its affinity to the binder. To evaluate the behavior of different coupling agents in HMX-based ECX, the charges were tensile tested and the section of tested samples were observed by using scanning electronic microscope (SEM) combined with FT-IR spectrum. The experimental results indicate that the interaction of the interface between HMX and hydroxy-terminated polymer is very weak, showing apparent debonding. Among the coupling agents tested, the amide containing both hydroxyand amino-group shows a satisfied effect because of its high affinity to HMX crystal and taking part in the cross-link reaction of binder ingredients. 
Coupling agent; ECX; HMX