Polymer Reinforced DNAN/RDX Energetic Composites: Interfacial Interactions and Mechanical Properties

• Autorzy: Qian W. , Chen X. , Luo G.

Identyfikatory

DOI

10.22211/cejem/75609

• Języki publikacji: EN

Abstrakty

EN

2,4-Dinitroanisole (DNAN) has excellent properties as a replacement for 1,3,5-trinitrotoluene (TNT) in melt-cast explosives, and the polymeric modifier used is critical to the mechanical modification of the DNAN/RDX energetic composite. In our research, the typical polymeric modifier acrolein-pentaerythritol resin (APER) was successfully added experimentally to the DNAN/RDX system, and the effects of interfacial interactions on the mechanical properties of these polymers in reinforcing the DNAN/RDX energetic composites were investigated by molecular dynamics simulations, scanning electron microscopy (SEM) and mechanical testing. The results showed that strong attractive interactions exist between the polymer and the explosives, wherein van der Waals forces were found to play the main role. The morphological micro-images also showed tight binding between the polymer/explosive interfaces, which supported the calculated strong interfacial interactions. The mechanical tests confirmed that adding the polymers can obviously reinforce the mechanical strength and toughness of DNAN/RDX systems. The above observations revealed that the cooperative effects of the APER polymer can help to reinforce the interfacial interactions and mechanical properties of DNAN/RDX composites, which is of importance in the formulation and mechanical evaluation of advanced energetic composites.

Słowa kluczowe

EN

energetic composites; dinitroanisole; molecular dynamics; interfacial interactions; mechanical properties

• Czasopismo: Central European Journal of Energetic Materials
• Rocznik: 2017
• Tom: Vol. 14, no. 3
• Strony: 726--741
• Opis fizyczny: Bibliogr. 40 poz., rys., tab.

Twórcy

autor

Qian W.

• Institute of Chemical Materials, China Academy of Engineering Physics (CAEP), Mianyang 621900, China

autor

Chen X.

• Institute of Chemical Materials, China Academy of Engineering Physics (CAEP), Mianyang 621900, China

autor

Luo G.

• Institute of Chemical Materials, China Academy of Engineering Physics (CAEP), Mianyang 621900, China

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