As a non-radioactive clean energy, fusion energy has showed its irreplaceable advantages among other energies. In the experiment of laser inertial confinement fusion (ICF), the most important factor is the property of the microspheres capsule which directly affects the success of the experiment. However, different ICF target materials presented separate advantages and limitations, wherein the polymeric hollow microspheres focusing on a wide variety of polymeric materials. PAN is possible to obtain excellent performance polymer hollow microspheres, with strong anti-corrosion and anti-radiation performance, which greatly reduced permeability to hydrogen isotopes and facilitated storage of fuel and maintenance. This paper will focus on the discussion of the following three components:1. The establishment of the technology in preparing polyacrylonitrile hollow microspheres:Through the comparison of the phenomenon in double emulsion experiments under different three-phase system and the analysis of the situation and impacts of different solution components, a three-phase solution system which suitable for the preparation of polyacrylonitrile hollow microspheres was obtained base on the microemulsion generator device built with double T-junction channels.2. Preparation of the thick-walled polyacrylonitrile hollow microspheres:After establishing the process for preparing polyacrylonitrile hollow microspheres under three-phase solution system, thick-walled polyacrylonitrile emulsions can be obtained by adjusting the concentration of solution and the phase solution flow rates of microemulsion generator.3. The pre-oxidation treatments of thick-walled PAN hollow microspheres:Through alter pre-oxidation temperature and pre-oxidation heating rate, pre-oxidized polyacrylonitrile hollow microspheres with different physical structure and chemical structure were obtained. |