| SC-CO2辅助高固含量发射药代料挤出加工的流变行为（英） |
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| 引用本文： | 阮建,熊奥,丁亚军,应三九.SC-CO2辅助高固含量发射药代料挤出加工的流变行为（英）[J].含能材料,2020,28(6):504-513. |
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| 作者姓名： | 阮建 熊奥 丁亚军 应三九 |
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| 作者单位： | 南京理工大学化工学院,江苏 南京 210094;南京理工大学特种能源材料教育部重点实验室,江苏 南京 210094,南京理工大学化工学院,江苏 南京 210094;南京理工大学特种能源材料教育部重点实验室,江苏 南京 210094,南京理工大学化工学院,江苏 南京 210094;南京理工大学特种能源材料教育部重点实验室,江苏 南京 210094,南京理工大学化工学院,江苏 南京 210094;南京理工大学特种能源材料教育部重点实验室,江苏 南京 210094 |
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| 摘 要： | 为了改善高固含量发射药挤出加工时流变性能，采用超临界二氧化碳（SC-CO2）作为增塑剂辅助高固含量发射药代料醋酸纤维素/碳酸钙（CA/CaCO3）挤出加工，通过狭缝流变仪和幂律方程研究了CA/CaCO3和CA/CaCO3/SC-CO2溶液的在线流变行为，使用Polyflow软件模拟了CA/CaCO3/SC-CO2溶液的分散混合性能。结果表明，温度为50 ℃时，SC-CO2使CA/CaCO3溶液的稠度系数降低了26.00%，非牛顿指数增加了16.67%，降低了CA/CaCO3溶液在挤出过程的粘度和压力；随着加工温度的升高，CA/CaCO3/SC-CO2溶液的粘度降低；在低剪切速率下，CA/CaCO3/SC-CO2溶液的剪切粘度对温度的敏感性较高；根据模拟结果，温度为50 ℃时，CA/CaCO3/SC-CO2溶液经受最大剪切应力的最大概率密度比CA/CaCO3溶液增加了20.63%，SC-CO2的注入有利于CA/CaCO3溶液分散混合性能的提高。
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| 关 键 词： | 高固含量发射药 超临界二氧化碳(SC-CO2) 流变行为 分散混合性能 High solid content propellant Supercritical carbon dioxide Rheological behavior Dispersive mixing properties |
| 收稿时间： | 2019/11/12 0:00:00 |
| 修稿时间： | 2020/3/15 0:00:00 |
Rheological Behavior of High Solid Content Propellant Substitutes in Extrusion Process Assisted with SC-CO2 |
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| RUAN Jian,XIONG Ao,DING Ya-jun and YING San-jiu.Rheological Behavior of High Solid Content Propellant Substitutes in Extrusion Process Assisted with SC-CO2[J].Chinese Journal of Energetic Materials,2020,28(6):504-513. |
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| Authors: | RUAN Jian XIONG Ao DING Ya-jun and YING San-jiu |
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| Affiliation: | School of Chemical Engineering, Nanjing University of Science and Technology, Nanjing 210094, China;Key Laboratory of Special Energy Materials (Nanjing University of Science and Technology), Ministry of Education, Nanjing 210094, China,School of Chemical Engineering, Nanjing University of Science and Technology, Nanjing 210094, China;Key Laboratory of Special Energy Materials (Nanjing University of Science and Technology), Ministry of Education, Nanjing 210094, China,School of Chemical Engineering, Nanjing University of Science and Technology, Nanjing 210094, China;Key Laboratory of Special Energy Materials (Nanjing University of Science and Technology), Ministry of Education, Nanjing 210094, China,School of Chemical Engineering, Nanjing University of Science and Technology, Nanjing 210094, China;Key Laboratory of Special Energy Materials (Nanjing University of Science and Technology), Ministry of Education, Nanjing 210094, China |
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| Abstract: | |
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| Keywords: | High solid content propellant Supercritical carbon dioxide Rheological behavior Dispersive mixing properties |
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