Validation of CL-20-based Propellant Formulations for Photopolymerization 3D Printing,Propellants, Explosives, Pyrotechnics

当前位置： X-MOL 学术 › Propellants Explos. Pyrotech. › 论文详情

Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)

Validation of CL-20-based Propellant Formulations for Photopolymerization 3D Printing
Propellants, Explosives, Pyrotechnics ( IF 1.7 ) Pub Date : 2021-10-14 , DOI: 10.1002/prep.202100196
Yuchen Gao ₁ , Weitao Yang _{1,

2} , Rui Hu ₁ , Jing Zhou ₁ , Yucheng Zhang ₁

Affiliation

The combustion performances of propellants depend on the geometry and the composition. Three-dimensional (3D) printing or additive manufacturing provides a feasible and effective way to fabricate propellants according to interior ballistic requirements. The main objective of this paper is to improve the properties of 3D printed propellants in terms of energy content and combustion behavior. Three propellant formulas, which contain polyurethane-acrylic acid resin as binder and hexanitrohexaazaisowurtzitane (CL-20) as energetic filler, were fabricated by extrusion material 3D printing. The formulas with the force constant of 1107.43–1209.44 J/g were designed. The combustion behaviors of designed formulas, such as the maximum pressure, burn time, and burn rate, were characterized by closed bomb tests. Meanwhile, the curing time, printability, and inner structure of these formulas were also demonstrated to understand the 3D extrusion printing of propellants better.

中文翻译：

用于光聚合 3D 打印的基于 CL-20 的推进剂配方的验证

推进剂的燃烧性能取决于几何形状和成分。三维 (3D) 打印或增材制造提供了一种可行且有效的方法来根据内部弹道要求制造推进剂。本文的主要目标是改善 3D 打印推进剂在能量含量和燃烧行为方面的性能。通过挤压材料3D打印制造了三种推进剂配方，其中包含聚氨酯-丙烯酸树脂作为粘合剂和六硝基六氮杂异武兹烷（CL-20）作为含能填料。设计了力常数为1107.43-1209.44 J/g的公式。设计公式的燃烧行为，如最大压力、燃烧时间和燃烧速率，通过密闭弹试验表征。同时，固化时间、印刷适性、

更新日期：2021-12-03

点击分享查看原文

点击收藏

阅读更多本刊新发论文