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为强化燃烧,让复合推进剂中的铝粉表面包覆一种高分子表面活性剂。燃烧过程中这种活性剂形成不可渗透的壳层,可通过破裂燃烧的方式使铝粉快速完全的燃烧。激光点火实验初步验证了这种设想的可行性。T形燃烧器的实验结果表明,使用包覆铝粉的推进剂,燃烧室管壁残存的残渣量和残渣中大粒子所占的百分数显著减少。
In order to strengthen the combustion, the surface of the aluminum powder in the composite propellant is coated with a polymer surfactant. This active agent forms an impermeable shell during combustion which allows rapid and complete combustion of the aluminum powder by means of burst combustion. Laser ignition experiment preliminary verified the feasibility of this idea. The experimental results of the T-shaped burners show that with the aluminum powder-coated propellant, the residual amount of residue and the percentage of large particles in the residue of the combustion chamber are significantly reduced.