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Characterization and Properties of F2602/GAP/CL-20 Energetic Fibers with High Energy and Low Sensitivity Prepared by the Electrospinning Method.
ACS Omega ( IF 3.7 ) Pub Date : 2020-05-06 , DOI: 10.1021/acsomega.0c01043 Xiaolan Song 1 , Kaige Guo 1 , Yi Wang 2 , Fengsheng Li 3
ACS Omega ( IF 3.7 ) Pub Date : 2020-05-06 , DOI: 10.1021/acsomega.0c01043 Xiaolan Song 1 , Kaige Guo 1 , Yi Wang 2 , Fengsheng Li 3
Affiliation
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In this work, three samples of fluoroelastomers/glycidyl azide polymer/hexanitrohexaazaisowurtzitane (F2602/GAP/CL-20) energetic fibers with F2602/GAP:CL-20 ratios of 1:9, 2:8, and 3:7 were prepared by the electrospinning method. The morphologies and structures of the samples were characterized by scanning electron microscopy, energy dispersive spectroscopy, X-ray diffraction, and Fourier transform infrared spectroscopy. The results revealed that F2602/GAP/CL-20 energetic fibers showed a three-dimensional network structure, and four elements C, N, O, and F were observed on the surface. The surface of the fiber F2602/GAP:CL-20 = 1:9 was uniform and smooth. Differential scanning calorimetry was used to analyze the thermal decomposition properties of the samples. The apparent activation energy of the F2602/GAP/CL-20 energetic fiber was 399.86 kJ/mol, indicating high thermal stability. TG-MS analysis results show that the thermal decomposition products of F2602/GAP/CL-20 are mainly C2H6, H2O, N2, and CO2. The results of the energy performance evaluation showed that the standard specific impulse (Isp) of F2602/GAP/CL-20 was 2668.1 N s kg–1, which was remarkably higher than Isp of the state-of-the-art AP/HTPB/Al propellant. In addition, compared to that of CL-20, the friction sensitivity of one F2602/GAP/CL-20 sample decreased by 38%, and the sensitivities of the other two F2602/GAP/CL-20 samples were even less than zero. F2602/GAP/CL-20 fibers also exhibited a higher feature height. Therefore, these kinds of CL-20-based fibers are high-energy materials with very low sensitivity.
中文翻译：
通过电纺法制备的高能量低灵敏度的F2602 / GAP / CL-20高能纤维的表征和性能。
在这项工作中，含氟弹性体/缩水甘油叠氮化物聚合物/六硝基六氮杂异纤锌矿型结构烷烃（F 2602 / GAP / CL-20）含能纤维的三个样品分别为F 2602 / GAP：CL-20比为1：9、2：8和3：7通过静电纺丝法制备。样品的形貌和结构通过扫描电子显微镜，能量色散光谱，X射线衍射和傅里叶变换红外光谱来表征。结果表明，F 2602 / GAP / CL-20高能纤维呈现三维网络结构，在表面观察到4种元素C，N，O和F。纤维F 2602的表面/ GAP：CL-20 = 1：9均匀且光滑。差示扫描量热法用于分析样品的热分解特性。F 2602 / GAP / CL-20高能纤维的表观活化能为399.86 kJ / mol，表明具有较高的热稳定性。TG-MS分析结果表明，F 2602 / GAP / CL-20的热分解产物主要为C 2 H 6，H 2 O，N 2和CO 2。能量性能评估结果表明，F 2602 / GAP / CL-20的标准比冲（I sp）为2668.1 N s kg –1，明显高于我用上所述状态的最先进的AP / HTPB / Al的推进剂。此外，与CL-20相比，一个F 2602 / GAP / CL-20样品的摩擦灵敏度降低了38％，而其他两个F 2602 / GAP / CL-20样品的灵敏度甚至低于CL-20。零。F 2602 / GAP / CL-20纤维还具有较高的特征高度。因此，这些基于CL-20的纤维是具有非常低的灵敏度的高能量材料。
更新日期：2020-05-06
中文翻译：
通过电纺法制备的高能量低灵敏度的F2602 / GAP / CL-20高能纤维的表征和性能。
在这项工作中，含氟弹性体/缩水甘油叠氮化物聚合物/六硝基六氮杂异纤锌矿型结构烷烃（F 2602 / GAP / CL-20）含能纤维的三个样品分别为F 2602 / GAP：CL-20比为1：9、2：8和3：7通过静电纺丝法制备。样品的形貌和结构通过扫描电子显微镜，能量色散光谱，X射线衍射和傅里叶变换红外光谱来表征。结果表明，F 2602 / GAP / CL-20高能纤维呈现三维网络结构，在表面观察到4种元素C，N，O和F。纤维F 2602的表面/ GAP：CL-20 = 1：9均匀且光滑。差示扫描量热法用于分析样品的热分解特性。F 2602 / GAP / CL-20高能纤维的表观活化能为399.86 kJ / mol，表明具有较高的热稳定性。TG-MS分析结果表明，F 2602 / GAP / CL-20的热分解产物主要为C 2 H 6，H 2 O，N 2和CO 2。能量性能评估结果表明，F 2602 / GAP / CL-20的标准比冲（I sp）为2668.1 N s kg –1，明显高于我用上所述状态的最先进的AP / HTPB / Al的推进剂。此外，与CL-20相比，一个F 2602 / GAP / CL-20样品的摩擦灵敏度降低了38％，而其他两个F 2602 / GAP / CL-20样品的灵敏度甚至低于CL-20。零。F 2602 / GAP / CL-20纤维还具有较高的特征高度。因此，这些基于CL-20的纤维是具有非常低的灵敏度的高能量材料。
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