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PROPELLANT LOAD, WITH MECHANICALLY REINFORCED LINER/PROPELLANT CONNECTION, AND PREPARATION THEREOF
PROPELLANT LOAD, WITH MECHANICALLY REINFORCED LINER/PROPELLANT CONNECTION, AND PREPARATION THEREOF
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机译:具有机械加强的衬里/推进剂连接的推进剂载荷及其制备
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摘要
A propellant load includes a propellant block, containing energetic charges in a crosslinked binder, arranged in a structure having a thermal protection; the crosslinked binder being an energetic binder including a polymer, more polar than hydroxytelechelic polybutadiene (HTPB), which is crosslinked and an energetic plasticizer, the polymer non-crosslinked representing less than 14% of the volume of the propellant block; a bonding layer, based on crosslinked hydroxytelechelic polybutadiene (HTPB), between the thermal protection and the propellant block; and a system for mechanical reinforcement of the bonding layer/propellant block bond, present on at least part of the bonding layer/propellant block interface, including grains embedded in part in the bonding layer and the complementary part thereof being embedded in the propellant block: made of a pyrotechnically inert material, and that has a surface energy greater than 34 mJ/m2; and the largest dimension of which is between 0.3 and 5.2 mm.
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机译:推进剂负载包括:推进剂块,其被布置在具有热保护的结构中,所述推进剂块在交联的粘合剂中包含高能电荷;所述交联的粘合剂是一种高能粘合剂,其包括比被交联的羟基telechelic聚丁二烯(HTPB)更极性的聚合物和高能的增塑剂,所述非交联的聚合物占所述推进剂嵌段的体积的小于14%;在热保护层和推进剂块之间的基于交联的羟基telechelic聚丁二烯(HTPB)的粘结层;在粘结层/推进剂块界面的至少一部分上存在的用于机械增强粘结层/推进剂块粘结的系统,该系统包括部分嵌入粘结层中的颗粒和其互补部分嵌入推进剂块中:由烟火惰性材料制成,表面能大于34 mJ / m 2 Sup>;最大尺寸在0.3到5.2毫米之间。
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