| Energetic prepolymer monomer and energetic monomer have been rationally designed and synthesized successfully in this paper. Energetic ink, prepared by the monomers mentioned above under ultrasonic mixing and the addition of nitrocellulose for the adjustment of viscosity, was injected into the three dimensional printing (3DP) rapid prototyping system to acquire energetic patterns on the base of silicon plate, damaged semiconductor bridge and intact semiconductor bridge. The energetic films were obtained successfully after UV curing and its electrical explosion performance was further investigated. Compared with that of conventional energetic ink made by the addition of solid energetic materials into the solvent, the energetic ink synthesized in this paper possessed’better liquidity. In addition, the problem that the injection needle was liable to be blocked because of volatilizing of solvent was solved effectively at the same time.The main contents and conclusions of this paper are as follows:(1) Energetic prepolymer monomer and energetic monomer have been designed on the premise of maximize energy, experimental feasibility as well as UV-curable ink characteristics.(2) Energetic prepolymer monomer and energetic monomer were synthesized successfully and confirmed by’H-NMR,13C-NMR and MS-GC, respectively.(3) Relationship between the adding amount of nitrocellulose and the visosity of the energetic ink was investigated, and it suggested that 300 mg nitrocellulose per 2 g energetic prepolymer monomer was the best proportion for the energetic ink to inkjet printing system.(4) Two formulations of energetic ink prepared by using the energetic prepolymer monomer and energetic monomer were used to print on the base of silicon plate, damaged semiconductor bridge and intact semiconductor bridge. The energetic films were obtained after UV curing and proved to be fired successfully.(5) The effects of electrostatic discharge (ESD) on semiconductor bridge’s resistance and ignition time were investigated in this paper, and it was elucidated that firing reliability of the semiconductor bridge was easily affected by the ESD. The study of energetic films having unique properties under electric shock creates the possibility of a new field for the research and development of new concept pyrotechnicsIn summary, a research involving organic synthesis,3DP rapid prototyping technology and pyrotechnics in energetic films for ignition or detonation in this paper will bring a new breakthrough in the development of pyrotechnics. |
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