Probing the compatibility and interaction of energetic binders based on 3,3‐bis(azidomethyl)oxetane with some explosives: thermal, interfacial and simulation studies

Li, Bingjun; Niu, Hu; Zhang, Jun; Li, Guoping; Luo, Yunjun; Zheng, Jie

doi:10.1002/pi.5493

Cited by 10 publications

(3 citation statements)

References 24 publications

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“…Therefore, the interfacial tension ( γ s1,s2 ) and work of adhesion ( W a ) between HTPE/N100 binder containing different contents of MHBPE and RDX were investigated according to the method of Li et al . 17 and the results are shown in Table 6.…”

Section: Resultsmentioning

confidence: 99%

“…The contact angles and the polar and dispersion components (γ p , γ d ) of the surface free energy (γ) of the binders as functions of the content of MHBPE are listed in Tables 4 and 5, respectively. Therefore, the interfacial tension (γ s1,s2 ) and work of adhesion (W a ) between HTPE/N100 binder containing different contents of MHBPE and RDX were investigated according to the method of Li et al 17 and the results are shown in Table 6. As depicted in Fig.…”

Section: Principal Mechanisms Related To the Mechanical Performancementioning

confidence: 99%

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Applying modified hyperbranched polyester in hydroxyl‐terminated polyether/ammonium perchlorate/aluminium/cyclotrimethylenetrinitramine (HTPE/AP/Al/RDX) composite solid propellant

Wen

Chen

Sang

et al. 2020

Polymer International

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Composite solid propellants demand fine and stable mechanical properties, creep resistance and stress relaxation performance during their long storage and usage time. In this study, modified hyperbranched polyester (MHBPE) was prepared and introduced into HTPE/AP/Al/RDX (HTPE, hydroxyl-terminated polyether; AP, ammonium perchlorate; RDX, cyclotrimethylenetrinitramine) solid propellant as an effective additive. The static tensile and dynamic mechanical properties of this propellant before and after the introduction of MHBPE were evaluated. The elevated interfacial interaction by using MHBPE between the binder and RDX fillers improved the toughness and elasticity of the propellant. The enhancement mechanisms were also confirmed by the influence on the fracture surface morphology of the binder which was investigated by SEM. In addition, some influence on the dynamic mechanical properties of HTPE/AP/Al/RDX propellant caused by MHBPE was investigated by dynamic mechanical analysis. The creep behaviors of the HTPE/AP/Al/RDX propellants with and without MHBPE were also investigated at different stresses and temperatures. Reduced creep strain rate and strain were obtained for the modified propellant, implying enhanced creep resistance performance. The creep properties were quantitatively evaluated using a six-element model and the long-term creep performance of the propellant was predicted using the time-temperature superposition principle. A creep behavior of nearly 10 6 s at 30°C could be acquired in a short-term experiment (800 s) at 30-70°C. Moreover, the stress relaxation investigation of the propellants with and without MHBPE at −40°C, 20°C and 70°C suggested that MHBPE/HTPE/AP/Al/ RDX propellant possessed better response ability to deformation. Thus, the application of MHBPE provides an efficient route of reinforcement to enhance the creep resistance and stress relaxation properties.

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Section: Resultsmentioning

confidence: 99%

Section: Principal Mechanisms Related To the Mechanical Performancementioning

confidence: 99%

Applying modified hyperbranched polyester in hydroxyl‐terminated polyether/ammonium perchlorate/aluminium/cyclotrimethylenetrinitramine (HTPE/AP/Al/RDX) composite solid propellant

Wen

Chen

Sang

et al. 2020

Polymer International

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“…Poly-BAMO itself has attracted interest due to its higher azide content than GAP. BAMO was found to be compatible with other energetic materials such as CL-20, HMX, and RDX [19][20]. Unfortunately, GAP and BAMO have rather poor mechanical properties, GAP's properties are better.…”

Section: Azido Polymersmentioning

confidence: 88%

Review of novel energetic polymers and binders – high energy propellant ingredients for the new space race

Cheng

2019

Designed Monomers and Polymers

117

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Current solid rocket propellant formulations still employ traditional ingredients utilized since the 1960s, such as hydroxyl terminated polybutadiene (HTPB). Recent advances in energetic polymer see many binders capable of providing higher specific impulse and burn rates over HTPB. As shown by calculations, even slight increases in specific impulse can drastically increase the maximum payload of a launch system. Therefore, replacing HTPB with energetic binders could provide heavy space missions the needed extra boost. Energetic binders could also be paired with chlorine-free energetic oxidizers to synergistically provide a specific impulse exceedingly higher than the current formulation while reducing pollution. A comprehensive evaluation of the synthesis, mechanical properties, and performance of various trending and overlooked energetic polymers is described. Several outstanding candidates show promising properties to replace HTPB.

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The influence of temperature and component proportion on stability, sensitivity, and mechanical properties of LLM-105/HMX co-crystals via molecular dynamics simulation

Bai²,

Shi

et al. 2020

J Mol Model

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Probing the compatibility and interaction of energetic binders based on 3,3‐bis(azidomethyl)oxetane with some explosives: thermal, interfacial and simulation studies

Cited by 10 publications

References 24 publications

Applying modified hyperbranched polyester in hydroxyl‐terminated polyether/ammonium perchlorate/aluminium/cyclotrimethylenetrinitramine (HTPE/AP/Al/RDX) composite solid propellant

Applying modified hyperbranched polyester in hydroxyl‐terminated polyether/ammonium perchlorate/aluminium/cyclotrimethylenetrinitramine (HTPE/AP/Al/RDX) composite solid propellant

Review of novel energetic polymers and binders – high energy propellant ingredients for the new space race

The influence of temperature and component proportion on stability, sensitivity, and mechanical properties of LLM-105/HMX co-crystals via molecular dynamics simulation

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