Publications by authors named "Zhengfeng Yan"
The surface functionalization of graphene oxide (GO) is always attractive in improving certain properties of the polymer. In this study, 3-aminopropyltriethoxysilane (APTES) and 3-mercaptopropyl-trimethoxysilane (SPTES) have been used to make silane functionalized graphene oxides (SiGOs). The APTES-grafted GO (NH-SiGO), SPTES-grafted GO (SH-SiGO) and pure GO have been separately introduced into the nitrocellulose (NC) matrix.
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- A new energetic molecule called TFX was created using a three-step synthesis process that included amino guanidine bicarbonate and trifluoroacetic acid, which is effective and non-toxic.
- X-ray analysis showed that TFX has strong intermolecular interactions through hydrogen bonds and π-π stacking in its structure.
- With high density, excellent thermal stability up to 300.3 °C, and low sensitivity to mechanical pressure, TFX shows promise for use as a heat-resistant energetic material.
Article Synopsis
- BOM is a promising replacement for TNT in melt cast explosives due to its unique chemical structure, providing both high energy performance and low sensitivity.
- Thermal analysis revealed that BOM is stable under heating, showing non-volatility and good thermal stability, with a higher activation energy than other explosives like DNTF and TNT.
- The study found that BOM combined with DNTF at a specific ratio significantly enhances detonation performance compared to traditional TNT/HMX mixtures.
The chromate nanoparticles such as CoCrO, NiCrO, CuCrO, and ZnCrO were prepared by a modified sol-gel method. The structural and morphological properties of the chromate nanoparticles were characterized by X-ray diffraction (XRD) and a scanning electron microscope (SEM). The catalytic effects of chromates on the thermal decomposition of fine ammonium perchlorate (FAP) and hexanitrohexaazaisowurtzitane (CL-20) were studied by the TG-DTG measurements.
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