A new fluorocarbon adhesive:Inhibiting agglomeration during combustion of propellant via efficient F-Al_(2)O_(3) preignition reaction

作     者：Qifa Yao Min Xia Chao Wang Fanzhi Yang Wei Yang Yunjun Luo 

作者机构：School of Materials Science and EngineeringBeijing Institute of TechnologyBeijingChina Key Laboratory of High Energy Density MaterialsMinistry of EducationBeijing Institute of TechnologyBeijingChina School of Aerospace EngineeringBeijing Institute of TechnologyBeijingChina Advanced Research Institute of Multidisciplinary ScienceBeijing Institute of TechnologyBeijingChina 

出 版 物：《Carbon Energy》 (碳能源（英文）)

年 卷 期：2024年第6卷第6期

页      面：292-305页

核心收录：

学科分类：081702[工学-化学工艺] 08[工学] 0817[工学-化学工程与技术] 080502[工学-材料学] 0805[工学-材料科学与工程（可授工学、理学学位）] 

基　　金：Fundamental Research Funds for the Central Universities Grant/Award Number:3052017010 

主　　题：agglomeration characteristics aluminum particles combustion fluorine alcohol compounds HTPE propellants 

摘      要：Inhibiting the agglomeration of molten aluminum particles packed in the binder network is a promising scheme to achieve efficient combustion of solid *** this investigation,the hydroxyl-terminated structured fluorinated alcohol compound(PFD)was introduced to modify the traditional polyethylene glycol/polytetrahydrofuran block copolymerization(HTPE)binder;that is,a unique fluorinated polyether(FTPE)binder was synthesized by embedding fluorinated organic segments into the HTPE binder via crosslinking *** FTPE was applied in aluminum-based propellants for the first *** to the complete release of fluorinated organic active segments in the range of 300℃to 400℃,the burning rate of FTPEbased propellant increased from 4.07(0%PFD)to 6.36 mm/s(5%PFD),increased by 56.27%under 1 *** reaction heat of FTPE propellants increased from 5.95(0%PFD)to 7.18 MJ/kg(5%PFD)under 3.0 MPa,indicating that HTPE binder modified with PFD would be conducive to inhibiting the D90 of condensed combustion products(CCPs)dropped by 81.84%from 75.46(0%PFD)to 13.71μm(5%PFD)under 3.0 MPa,in consistent with the significant reduction of aluminum agglomerates observed on the quenched burning surface of the *** results demonstrated that a novel FTPE binder with PFD can release fluorinated organic active segments,which motivate preignition reaction with the alumina shell in the early stage of aluminum combustion,and then enhance the melting diffusion effect of aluminum to inhibit the agglomeration.