RDX/Al超细复合粒子的制备及性能研究

为了研究超细与复合途径对炸药性质的影响，运用YLG型高效研磨制备出RDX／Al超细复合粒子，并以水和乙醇作研磨介质进行了比较研究，并对复合粒子粒度，粒子形貌、热力学性能，粒子组分及爆热等进行了较全面的研究，结果表明，在水中研磨有助于粒子的复合，而在乙醇中研磨则有利于粒子的超细化和分散，在乙醇中研磨样品由于高能物质（C2H5O）3Al的生成，其爆热提高明显。为了解释这些现象，提出了超细复合模型及超细RDX／Al复合炸药热分散模型，其结论与实施结果相符合。

Study on Preparation and Properties of RDX/Al Superfine Composit e

To research the influence of superfining and compounding on the properties of the explosive, the RDX/Al superfine composite powders are prepared in YLG model stirring grinding machine. The composite powders prepared in different grinding media (water and alcohol) are compared and studied. The composite particles are studied on their diameters, particle appearances, properties of thermodynamics, particle compositions and explosive heat, using particle diameter sizer, SEM, DSC, XRD and explosive heat testing machine respectively. The study results indicate that the water grinding media may contribute to the compounding of particles, while the superfining and dispersing of particles is attributed to the alcohol grinding media. And the coming into being of energetic (C 2H 5O) 3Al improves the explosive heat of sample grinding in alcohol. To explain the phenomena, models on the superfining and compounding of particles and the thermolysis of superfine RDX/Al composite explosive are formed. And the models are well in accord with the experiment results.