Electrophoretic deposition of hybrid organic-inorganic PTFE/Al/CuO energetic film  

作　　者：Yan-jun Yin Feng Hu Le-hua Cheng Xiao-dong Wang 

机构地区：[1]School of Chemistry and Material Engineering,Chaohu University,Chaohu,238000,China

出　　处：《Defence Technology（防务技术）》2023年第4期112-118,共7页Defence Technology

基　　金：supported by National Natural Science Foundation of China(No.21905032);Natural Science Foundation of the Higher Education Institutions of Anhui Province(No.KJ2019A0687,No.KJ2016A503);High-level Humanities and Social Science Award Cultivation Project of Chaohu University and Innovation(No.kj20zkjp01,No.kj20xqyx02);Entrepreneurship Training Program for Students of National and school level(No.202010380014,X202010380013);Chaohu University for the Start-Up grant(No.KYQD-201907)。

摘　　要：Thermite films are typical energetic materials(EMs)and have great value in initiating explosive devices.However,research in thermite film preparation is far behind that of research in thermite powders.Electrophoretic deposition(EPD)is an emerging,rapid coating method for film fabrication,including of energetic composite films.In this work,a polytetrafluoroethylene(PTFE)/Al/CuO organic-inorganic hybrid energetic film was successfully obtained using the above method for the first time.The addition of lithocholic acid as a surfactant into the electroplating suspension enabled PTFE to be charged.The combustion and energy release were analyzed by means of a high-speed camera and differential scanning calorimetery(DSC).It was found that the combustion process and energy release of PTFE/Al/CuO were much better than that of Al/CuO.The main reason for the excellent combustion performance of the hybrid PTFE/Al/CuO system was that the oxidability of PTFE accelerated the redox reaction between Al and CuO.The prepared PTFE/Al/CuO film was also employed as ignition material to fire a B-KNO_3 explosive successfully,indicating considerable potential for use as an ignition material in micro-ignitors.This study sheds light on the preparation of fluoropolymer-containing organic-inorganic hybrid energetic films by one-step electrophoretic deposition.

关 键 词：Energetic film Electrophoretic deposition Fluorine-based polymers Combustion performance THERMITE 

分 类 号：TJ450.4[兵器科学与技术—火炮、自动武器与弹药工程]