CAJ | 학술논문

通过失重法研究了 AP-CMDB 推进剂在20、50和70℃时的失重规律，测试了50℃驱溶时不同失重率推进剂的燃速和抗冲击强度。结果表明，20、50和70℃时，推进剂分别放置约234、86和38．5 h 后质量趋于稳定；溶剂残留量驱除至极限值后，随着 NG 的挥发，推进剂的抗冲击强度和22MPa 下的燃速降低；50℃驱溶时推进剂达到稳定状态的失重率为12．1％，NG 的挥发损失对燃烧性能与力学性能的影响较小，适合薄壁管状 AP-CMDB 推进剂溶剂的快速驱溶。
통과실중법연구료 AP-CMDB 추진제재20、50화70℃시적실중규률，측시료50℃구용시불동실중솔추진제적연속화항충격강도。결과표명，20、50화70℃시，추진제분별방치약234、86화38．5 h 후질량추우은정；용제잔류량구제지겁한치후，수착 NG 적휘발，추진제적항충격강도화22MPa 하적연속강저；50℃구용시추진제체도은정상태적실중솔위12．1％，NG 적휘발손실대연소성능여역학성능적영향교소，괄합박벽관상 AP-CMDB 추진제용제적쾌속구용。
The mass loss rules of AP-CMDB propellant samples at 20,50 and 70℃ were researched by mass-loss method.The burning rates and impact strength of propellant with different mass-loss ratios at 50℃ were tested. The results indicate that the mass of propellant samples stored after about 234,86 and 38.5 h at 20,50 and 70℃approaches to steady state.After the residual solvent removed to a limit value,the impact strength and burning rate of propellant at 22 MPa decrease with volatilization of the NG.When the mass-loss ratio raises to 12.1 % at 50℃, the sample reaches to a steady state,the volatilization of NG has less effect on the combustion and mechanical prop-erties of propellant,and the temperature is suitable for fast solvent-removing for thin-wall tube-shaped AP-CMDB propellants.