Controlled preparation of PAMS hollow core microcapsules with high uniformity and its application in the production of GDP fuel capsules for ICF engineering

作     者：Qiang Chen Meifang Liu Xiangdong Liu Bo Li Yongping Chen Qiang Chen;Meifang Liu;Xiangdong Liu;Bo Li;Yongping Chen

作者机构：Laser Fusion Research CenterChina Academy of Engineering PhysicsMianyang 621900China Key Laboratory of Energy Thermal Conversion and Control of Ministry of EducationSchool of Energy and EnvironmentSoutheast UniversityNanjing 210096China 

出 版 物：《Fundamental Research》 (自然科学基础研究（英文版）)

年 卷 期：2023年第3卷第4期

页      面：602-610页

核心收录：

学科分类：08[工学] 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：This work was supported by the National Natural Science Foundation of China(52036006,51725602 and 22002145) the Young Talents Program of Laser Fusion Research Center and the Open Project of State Key Laboratory of Environment-friendly Energy Materials(21kfhg03) 

主　　题：Inertial confinement fusion engineering Mass transfer regulation PAMS HCMs Spherical uniformity Surface finish 

摘      要：Uniform poly-α-methylstyrene(PAMS)hollow core microcapsules(HCMs)are widely used as templates to fabricate glow discharge polymer(GDP)fuel capsules,which are fundamental devices for inertial confinement fusion(ICF)*** sphericity and surface finish uniformity of PAMS HCMs are critical for achieving highquality GDP fuel *** this work,millimeter-scale PAMS HCMs were fabricated by a microencapsulation *** sphericity and surface finish uniformity were concurrently improved using di-t-butyl peroxide(DTBP).The mechanisms of these effects were also experimentally and theoretically *** results show that DTBP distributes at the O-W2 interface of W1/O/W2 compound droplets,which resists the diffusion of molecules through the O-W2 interface *** resisted diffusion of H_(2)O molecules into the O phase eliminates PAMS HCM surface ***,the resistance of fluorobenzene(FB)molecules from diffusing from the O phase into the W2 phase can effectively extend the solidification of W1/O/W2 compound droplets and thus improve the spherical uniformity of the *** these improved PAMS HCMs,GDP fuel capsules meeting the stringent requirements for ICF engineering are prepared,and the quality of which is beyond the National Ignition Facility standard.