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Reduce the Sensitivity of CL-20 by Improving Thermal Conductivity Through Carbon Nanomaterials

機(jī)譯：通過碳納米材料提高熱導(dǎo)率來降低CL-20的靈敏度

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The graphene (rGO) and carbon nanotube (CNT) were adopted to enhance the thermal conductivity of CL-20-based composites as conductive fillers. The microstructure features were characterized using scanning electron microscopy (SEM) and X-ray diffraction (XRD), and tested the properties by differential scanning calorimeter (DSC), static electricity accumulation, special height, thermal conductivity, and detonation velocity. The results showed that the mixture of rGO and CNT had better effect in thermal conductivity than rGO or CNT alone under the same loading (1 wt%) and it formed a three-dimensional heat-conducting network structure to improve the heat property of the system. Besides, the linear fit proved that the thermal conductivity of the CL-20-based composites were negatively correlated with the impact sensitivity, which also explained that the impact sensitivity was significantly reduced after the thermal conductivity increased and the explosive still maintained better energy.Electronic supplementary materialThe online version of this article (10.1186/s11671-018-2496-3) contains supplementary material, which is available to authorized users.
機(jī)譯：采用石墨烯（rGO）和碳納米管（CNT）來增強(qiáng)CL-20基復(fù)合材料作為導(dǎo)電填料的導(dǎo)熱性。用掃描電子顯微鏡（SEM）和X射線衍射（XRD）表征了微觀結(jié)構(gòu)特征，并通過差示掃描量熱儀（DSC），靜電積聚，特殊高度，導(dǎo)熱率和爆轟速度測(cè)試了性能。結(jié)果表明，在相同的載荷（1 wt％）下，rGO和CNT的混合物比單獨(dú)的rGO或CNT具有更好的導(dǎo)熱性，并且形成了三維導(dǎo)熱網(wǎng)絡(luò)結(jié)構(gòu)以改善系統(tǒng)的熱性能。此外，線性擬合證明CL-20基復(fù)合材料的熱導(dǎo)率與沖擊敏感性呈負(fù)相關(guān)，這也解釋了當(dāng)熱導(dǎo)率增加后炸藥仍保持較好的能量，沖擊敏感性顯著降低。補(bǔ)充材料本文的在線版本（10.1186 / s11671-018-2496-3）包含補(bǔ)充材料，授權(quán)用戶可以使用。

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