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Fabrication and characterization of CL-20/PEI/GO composites with enhanced thermal stability and desensitization via electrostatic self-assembly

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Abstract To improve the encapsulation of GO to CL-20, PEI was utilized as a linker bridge to self-assemble into composite CL-20/PEI/GO in this study. The self-assembly was in-depth characterized, including… Click to show full abstract

Abstract To improve the encapsulation of GO to CL-20, PEI was utilized as a linker bridge to self-assemble into composite CL-20/PEI/GO in this study. The self-assembly was in-depth characterized, including Zeta potential, SEM, DLS, XPS, Raman spectra, HPLC and power-XRD. The possible self-assembled mechanism was also proposed, which indicates the electrostatic interaction introduced by PEI should be responsible for the self-assembly. The performance of a self-assembled composite was characterized by BAM and DSC analysis. And the results indicate the enhanced interaction promotes GO more efficiently encapsulate CL-20 and improve the safety of the energetic material. Therefore, this work demonstrates a novel and facile method to solve the deprived interaction and corresponding weak desensitization between desensitizer and energetic material.

Keywords: fabrication characterization; pei; desensitization; self assembly; self

Journal Title: Applied Surface Science
Year Published: 2021

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