本文用不同界面性质填料的推进剂，经单轴拉伸试验，研究偶联剂对不同填料提高推进剂力学性能的偶联效应。
By the uniaxial tensile test, the effect of coupling agents on mechanical properties of the composite propellant with fillers different in surface property is studied in this paper.
T313组合偶联剂兼顾了单元偶联剂各自的效应，且对包AP有显著的正协同效应。
Composite coupling agent T313 had the comprehensive function for the fillers above and the excellant synergism for the coated AP, especially.
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