| 石墨对TATB基PBX导热性能的影响 |
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| 引用本文： | 林聪妹,刘佳辉,何冠松,巩飞艳,黄忠,蒋跃强,潘丽萍,张建虎,刘世俊. 石墨对TATB基PBX导热性能的影响[J]. 含能材料, 2015, 23(11): 1119-1123 |
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| 作者姓名： | 林聪妹 刘佳辉 何冠松 巩飞艳 黄忠 蒋跃强 潘丽萍 张建虎 刘世俊 |
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| 作者单位： | 中国工程物理研究院化工材料研究所, 四川 绵阳 621999,中国工程物理研究院化工材料研究所, 四川 绵阳 621999,中国工程物理研究院化工材料研究所, 四川 绵阳 621999,中国工程物理研究院化工材料研究所, 四川 绵阳 621999,中国工程物理研究院化工材料研究所, 四川 绵阳 621999,中国工程物理研究院化工材料研究所, 四川 绵阳 621999,中国工程物理研究院化工材料研究所, 四川 绵阳 621999,中国工程物理研究院化工材料研究所, 四川 绵阳 621999,中国工程物理研究院化工材料研究所, 四川 绵阳 621999 |
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| 摘 要： | 为有效调节TATB基高聚物粘结炸药(PBX)的导热性能,利用闪光导热仪研究了石墨包覆方式(内包和外包)、温度及石墨含量对TATB基PBX导热系数的影响,应用Agari模型分析了TATB基PBX的导热机制。结果表明,添加高导热石墨可改善TATB基PBX的导热性能。常温下,由内包和外包1%(质量分数)石墨改性的TATB基PBX配方的导热系数分别为0.572 W·(m·K)-1和0.697 W·(m·K)-1,显示,外包石墨包覆方式比内包石墨包覆方式更好。与不含石墨的TATB基PBX相比,内包1%和外包1%石墨的TATB基PBX的导热性能分别提高4.76%和27.66%。随温度升高,TATB基PBX及其石墨改性配方的导热性能逐渐降低。随着石墨含量增加,外包石墨改性的TATB基PBX的导热性能升高。外包2%(质量分数)石墨可使TATB基PBX的导热系数提高至0.786 W·(m·K)-1。TATB基PBX及由内包石墨改性的配方的导热机制符合串联模型,而由外包石墨改性的配方的导热机制介于串联模型和并联模型之间。
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| 关 键 词： | TATB 高聚物粘结炸药(PBX) 石墨 导热性能 包覆方式 |
| 收稿时间： | 2014-09-04 |
| 修稿时间： | 2014-12-26 |
Effect of Graphite on Thermal Conduction Properties of TATB-based Polymer Bonded Explosives |
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| LIN Cong-mei,LIU Jia-hui,HE Guan-song,GONG Fei-yan,HUANG Zhong,JIANG Yue-qiang,PAN Li-ping,ZHANG Jian-hu and LIU Shi-jun. Effect of Graphite on Thermal Conduction Properties of TATB-based Polymer Bonded Explosives[J]. Chinese Journal of Energetic Materials, 2015, 23(11): 1119-1123 |
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| Authors: | LIN Cong-mei LIU Jia-hui HE Guan-song GONG Fei-yan HUANG Zhong JIANG Yue-qiang PAN Li-ping ZHANG Jian-hu LIU Shi-jun |
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| Affiliation: | Institute of Chemical Materials, CAEP, Mianyang 621999, China,Institute of Chemical Materials, CAEP, Mianyang 621999, China,Institute of Chemical Materials, CAEP, Mianyang 621999, China,Institute of Chemical Materials, CAEP, Mianyang 621999, China,Institute of Chemical Materials, CAEP, Mianyang 621999, China,Institute of Chemical Materials, CAEP, Mianyang 621999, China,Institute of Chemical Materials, CAEP, Mianyang 621999, China,Institute of Chemical Materials, CAEP, Mianyang 621999, China and Institute of Chemical Materials, CAEP, Mianyang 621999, China |
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| Abstract: | To regulate the thermal conduction performance of TATB-based polymer bonded explosive (PBX), the effects of graphite coating way (inner-coating and outer-coating), temperature and graphite content on the thermal conductivity of TATB-based PBX were investigated by a laser thermal conductivity apparatus. The thermal conduction mechanism of TATB-based PBX was analyzed by Agari model. Results show that the addition of graphite with high thermal conduction performance can improve the thermal conduction performances of TATB-based PBXs under room temperature, and the thermal conductivities of TATB-based PBXs with 1% (mass fraction) inner-coating and 1% outer-coating graphite are 0.572 W·(m·K)-1and 0.697 W·(m·K)-1, respectively, revealing that the outer-coating graphite way is better than inner-coating. Compared with the TATB-based PBX without graphite, thermal conductivities of TATB-based PBXs with 1% inner-coating graphite and 1% outer-coating graphite increase by 4.76% and 27.66%, respectively. With the increasing of temperature, the thermal conductivities of TATB-based PBX and its formulations modified with graphite gradually decrease. With increasing the graphite content, thermal conduction performances of TATB-based PBXs modified with outer-coating graphite increase. The 2% (mass fraction) outer-coating graphite can make the thermal conductivity of TATB-based PBX increase to 0.786 W·(m·K)-1. The thermal conduction mechanism of TATB-based PBX and formulation modified with inner-coating graphite accords with the series model, whereas the thermal conduction mechanism of formulation modified with outer-coating graphite is between series model and parallel model. |
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| Keywords: | TATB polymer bonded explosive(PBX) graphite thermal conductivity coating way |
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