【摘要】 硼粉具有较高理论热值,但是由于受热后表面氧化膜黏稠作用,导致放热量较低。为了提升硼粉热值,常采用包覆、团聚、表面提纯及改性3种方法来增强燃烧性能。本文系统综述了硼粉在含氧和含氟氧环境下发生的化学反应,探讨了利用氟材料去除氧化膜的氟化反应、团聚硼燃烧时的微爆炸现象以及硼表面功能化改性协同促进硼粉燃烧,归纳了提升硼粉释能的方法及协同作用,展望了协同提升硼粉释能的挑战和前景。更多还原

【Abstract】 Boron powder has a relatively high theoretical calorific value, but due to the thickening effect of the surface oxide film after heating, its heat release is relatively low. To increase the calorific value of boron powder, three methods, namely coating, agglomeration, surface purification and modification, are often adopted to enhance the combustion performance. In this paper, the chemical reactions of boron powder in oxygen-containing and fluorine-oxygen-containing environments were systematically reviewed, the fluorination reaction of removing oxide films with fluorine materials was discussed as well as the micro-explosion phenomenon during the combustion of agglomerated boron, and the synergistic promotion of boron powder combustion by the functional modification of the boron surface. The methods and synergistic effects for enhancing the energy release of boron powder were summarized, and the challenges and prospects of synergistically enhancing the energy release of boron powder were put forward.更多还原