摘要
为了改善燃速催化剂在固体推进剂药柱中的分散均匀性,提高其催化效率,采取内溶法分别制备了含燃速催化剂Fe2O3、Cu O、CNTs以及Cu2Cr2O5的硝化纤维素/聚叠氮缩水甘油醚复合球形药,并对其形貌、粒径、塑化性能、热分解性能等进行了测试与分析。结果表明,采取内溶法工艺制备的含燃速催化剂NC/GAP复合球形药,圆球化程度高,流散性好,球形药颗粒粒径可控;燃速催化剂以物理共混的方式引入NC/GAP复合球形药,对NC和GAP的分子结构未产生影响。另外,燃速催化剂的加入促进了NC/GAP球形药的热分解。含Fe2O3、CuO、CNTs以及Cu2Cr2O5的复合球形药比纯NC/GAP球形药的起始热分解温度分别降低12.15,15.38,15.42℃和13.97℃,其中CuO和CNTs的催化效果较明显。
In order to improve the dispersion uniformity and catalytic efficiency of burning rate catalysts in solid propellant grain,NC/GAP composite spherical powders containing burning rate catalysts Fe2O3,Cu O,CNTs and Cu2Cr2O5were prepared by internal dissolution method and their related physicochemical properties were tested and analyzed.The results show that the NC/GAP composite spherical powders containing the above burning rate catalyst have been successfully prepared by the internal dissolution process,the spherification degree is high,the dispersibility is goodand the particle size of spherical powders iscontrollable.The burning rate catalysts are compounded into NC/GAP composite spherical powders by physical blending,which haveno effect on the molecular structure of NC and GAP.In addition,the introduction of burning rate catalysts accelerates the thermal decomposition of NC/GAP spherical powders.The initial thermal decomposition temperatures of composite spherical powders containing Fe2O3,Cu O,CNTs and Cu2Cr2O5were 10.15,15.38,15.42℃and 13.97℃earlier than that of pure NC/GAP spherical powders,respectively.It indicated that Cu O and CNTs had obvious catalytic effect.
作者
羿庄城
柴宽
吴艳光
占煜
刘爱传
王文俊
YI Zhuang-cheng;CHAI Kuan;WU Yan-guang;ZHAN Yu;LIU Ai-zhuan;WANG Wen-jun(School of Materials Science and Engineering,Wuhan Institute of Technology,Wuhan 430205,China;Shan’xi North Chemical Industrial Limited Company,Taiyuan 030051,China;Automotive Engineering Corporation,Tianjin 300113,China)
出处
《含能材料》
EI
CAS
CSCD
北大核心
2020年第8期759-765,共7页
Chinese Journal of Energetic Materials
基金
国家自然科学基金资助(51603156)。
