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采用单向拉伸试验研究了2类键合剂对硝酸酯增塑BAMO-THF推进剂力学性能的影响,并用扫描电镜观察了不含键合剂和含有中性聚合物键合剂(NPBA)的硝酸酯增塑BAMO-THF推进剂切面微观形貌。结果表明,相比于MAPO、T-313、HX-752极性键合剂,中性键合剂使硝酸酯增塑BAMO-THF推进剂的最大抗拉强度和最大断裂伸长率明显提高;当4#NPBA的质量分数为0.15%时,推进剂最大抗拉强度和最大断裂伸长率均达到最大。
The effects of two kinds of bonding agents on the mechanical properties of BAMO-THF propellants were investigated by one-way tensile test. The effects of two kinds of bonding agents on the mechanical properties of BAMO-THF propellants were observed by scanning electron microscopy. Microstructure of plasticized BAMO-THF propellants. The results show that compared with MAPO, T-313 and HX-752 polar binder and neutral bond agent, the maximum tensile strength and maximum elongation at break of nitrate plasticized BAMO-THF propellant are obviously improved. When 4 When the mass fraction of #NPBA is 0.15%, the maximum tensile strength and the maximum elongation at break of the propellants reach the maximum.