Tuning energy output of PTFE/Al composite materials through gradient structure

作     者：Yao-feng Mao Qian-qian He Jian Wang Chuan-hao Xu Jun Wang Fu-de Nie Yao-feng Mao;Qian-qian He;Jian Wang;Chuan-hao Xu;Jun Wang;Fu-de Nie

作者机构：China Academy of Engineering Physics Institute of Chemical MaterialsChina 

出 版 物：《Defence Technology（防务技术）》 (Defence Technology)

年 卷 期：2023年第26卷第8期

页      面：134-142页

核心收录：

学科分类：082604[工学-军事化学与烟火技术] 08[工学] 0826[工学-兵器科学与技术] 

基　　金：supported by the National Natural Science Foundation of China(Grant Nos.11872341 and 22075261) 

主　　题：PTFE/Al composite Gradient structure Radial gradient Pressure output 

摘      要：As a typical energetic composite,polytetrafluoroethylene(PTFE)/aluminum(Al)has been widely applied in explosives,pyrotechnics,and propellants due to its ultra-high energy density and intense exothermic *** this work,the radial gradient(RG)structure of PTFE/Al cylinders with three different PTFE morphologies(200 nm and 5μm particles and 5μm fiber)and content changes are prepared by 3D printing *** effect of radial gradient structure on the pressure output of PTFE/Al has been *** with the morphology change of PTFE,the change of component content in the gradient structure has an obvious effect on the pressure output of the PTFE/Al ***,the relationships of the morphology,content of PTFE and the combustion reaction of the PTFE/Al cylinder reveal that the cylinder shows a more complex flame propagation process than *** results could provide a strategy to improve the combustion and pressure output of PTFE/Al.