含能聚合物/硝基胍复合含能材料的制备及表征  

Preparation and Characterization of Energetic Polymer/Nitroguanidine Composite Energetic Materials

作　　者：李博[1] 李兆乾[1] 罗庆平[1] 裴重华[1] 

机构地区：[1]四川省非金属复合与功能材料重点实验室西南科技大学,四川绵阳621010

出　　处：《火炸药学报》2016年第2期36-39,共4页Chinese Journal of Explosives & Propellants

基　　金：四川省教育厅创新团队项目(15TD0014)

摘　　要：以含能聚合物（EP）和硝基胍（NQ）为原料，采用溶剂／非溶剂法制备了EP／NQ复合含能材料，采用扫描电镜（SEM）、比表面积测试法（BET）和X射线衍射（XRD）对其形貌和结构进行了表征，用热重一差示扫描量热法（TG-DSO）对比分析了EP／NQ复合含能材料及其物理共混物的热性能。结果表明，EP／NQ复合含能材料具有三维纳米网络结构，NQ沉积在EP上面，其平均粒径为49～62nm，NQ的长针状结晶消除；与EP相比，EP／NQ复合含能材料的比表面积降低，且随着NQ质量分数由40％增至60％，EP／NQ复合含能材料的比表面积由54.599m^2／g降至25．02m^2／g；EP／NQ复合含能材料具有单一的热分解峰特性，热分解峰温比NQ提前55～59℃，且随着NQ质量分数由40％增至6O％，EP／NQ复合含能材料的热分解峰温由200．1℃升至203．7℃；EP／NQ复合含能材料的分解热显著高于EP／NQ物理共混物。Energetic Polymer/Nitroguanidine composite energetic material was prepared by solvent/non-solvent method using energetic polymer(EP)and nitroguanidine(NQ)as raw materials.Its morphology and structure were characterized by scanning electron microscope(SEM),BET method and X-ray diffraction(XRD).The thermal properties of EP/NQ composite energetic material and its physical blends were compared and analyzed by thermogravimetry-differential scanning calorimetry(TG-DSC).Results show that the EP/NQ composite energetic material has a three-dimensional nano-network structure.The NQ particles with mean particle size of 49-62 nm are deposited on EP and the long needle-like form of NQ is eliminated.The surface area of EP/NQ composite energetic material is smaller than that of EP,and the surface area decreases from 54.599m2/g to 25.02m2/g with increasing the mass fraction of NQ from 40%to 60%.EP/NQ composite energetic material has the characteristic of a single thermal decomposition peak,its thermal decomposition peak temperature is 55-59℃lower than that of NQ and its peak temperature rises from 200.1℃to 203.7℃ with increasing the mass fraction of NQ from 40%to 60%.The decomposition heat of EP/NQ composite energetic material is much higher than that of the physical blends.

关 键 词：复合含能材料 EP/NQ 硝基胍 含能聚合物 溶剂/非溶剂法 热性能 

分 类 号：TJ55[兵器科学与技术—军事化学与烟火技术] TB33[一般工业技术—材料科学与工程]