摘要
参照溶胶凝胶方法配制一定料比的溶胶,恒温(90℃)加热一定时间后,用玻璃基片提拉并干燥制得了nano-RDX/RF复合物薄膜。实验所得薄膜半透明,呈棕红色至黄色;实验表明,溶胶恒温加热时间较短时,所得薄膜的单层厚度较小,较平整,但附着力小,干燥后易脱落;恒温加热时间较长时,所得薄膜的单层厚度较大,不易脱落,但表面平整性较差;能谱测试表明,薄膜中的RDX整体上分布较为均匀,但在测试点位间距为2.4μm的微观尺度上呈离散状分布;XRD测试表明,RDX/RF复合物薄膜表现为RF的非晶态馒头峰与RDX衍射峰的叠加,RDX衍射峰明显宽化,其晶粒度可低至43 nm。溶胶凝胶法制备的nano-RDX/RF薄膜中RDX含量及其能量输出特性可调,与气相蒸发沉积法相比具有优越之处,在微小型火工品中具有潜在应用价值。
Nano-RDX/RF composite film was obtained by sol-gel method, which was arranged as sol preparation, sol heating, glass base lifting-pulling, and film drying. The composite film appeared semitransparent and brown to yellow from optical microscopy. Results show that shorter time sol-heating results in thiner film with less surface roughness, less conglutination to base, and easily to disconnect, while longer time sol-heating rcsluts in thicker film with better conglutination to base and worse roughness. RDX distributes in the film everywhere on the whole but discretely on the scale of 2.4 μm according to EDS results. XRD curve of RDX/RF film shows the supcrposition of RF non-crystal bread curve and RDX crystals diffraction curve. RDX diffraction peaks arc broadened and its crystal size is calculated to be lower to 43 am. Nano-RDX/RF film prepared by sol-gel method can be controllable, which is better than that by physical vapor deposition method and can be applied in microminiature initiating apparatus.
出处
《含能材料》
EI
CAS
CSCD
2008年第4期391-394,共4页
Chinese Journal of Energetic Materials
关键词
有机化学
含能材料
纳米RDX
薄膜
晶粒度
organic chemistry
energetic materials
nano-RDX
film
crystal size
