论文部分内容阅读
比较了7种纯溶剂和5种混合溶剂对HTPB复合固体推进剂的溶胀效果,得到并分析了推进剂经各溶剂溶胀后的质量损失情况;利用扫描电子显微镜(SEM)对溶胀后的推进剂表面形貌进行观测,并利用傅里叶漫反射红外光谱(DRIFT)仪对纯AP以及经水/乙醚、水/丙酮溶胀回收的AP进行表征。实验结果显示:纯溶剂溶胀实验中,二氯甲烷、三氯甲烷的溶胀效果最明显,溶胀增长比达44.6%、50%,但质量损失比较小,仅为26.5%、28.8%;混合溶剂溶胀实验中,水/乙醚、水/丙酮的溶胀效果最显著,溶胀增长比分别为100.2%、41.2%,质量损失比分别为65.98%、66.34%;DRIFT检测结果显示,经水/乙醚、水/丙酮溶胀回收得到的AP的特征峰均没有发生变化,证明水/乙醚、水/丙酮体系均可用于废弃HTPB复合固体推进剂中AP组分的回收。
The swelling effects of seven kinds of pure and five kinds of mixed solvents on HTPB composite solid propellants were compared and the mass loss of the propellants after being swell by each solvent was obtained and analyzed. The swelling propellants were analyzed by scanning electron microscope (SEM) The surface morphology was observed and characterized by Fourier Transform Reflectance Infrared Spectroscopy (DRIFT) for pure AP and AP recovered by swelling with water / ether and water / acetone. The experimental results show that the swelling effect of dichloromethane and chloroform is the most obvious in pure solvent swelling experiment, the swelling ratio is 44.6% and 50%, but the mass loss is only 26.5% and 28.8% In the experiment, the swelling effect of water / ether and water / acetone was the most significant, the swelling growth ratios were 100.2% and 41.2%, respectively, and the mass loss ratios were 65.98% and 66.34% respectively. DRIFT results showed that the water / The characteristic peaks of AP recovered from acetone swelling did not change, which proved that the water / ether and water / acetone systems could all be used for the recovery of AP components in abandoned HTPB composite solid propellant.