固体火箭技术2022，Vol.45Issue(3)：399-406,8.DOI:10.7673/j.issn.1006-2793.2022.03.011
用于3D打印的光固化聚醚改性HTPB固体推进剂配方研究
Formulation research on UV-curable polyether modified HTPB solid propellant for 3D printing①
吕硕 1强洪夫 2陈辉 1王璐 3张利军 4胡润芝4
作者信息
- 1. 火箭军工程大学,西安710025
- 2. 西安航天信息研究所,西安 710025
- 3. 航天动力技术研究院,西安710025
- 4. 西安航天化学动力有限公司,西安 710025
- 折叠
摘要
Abstract
3D printing technology has significant advantages in the preparation of solid propellant grain with a complex structure and can improve manufacturing efficiency and process safety.The modified HTPB propellant slurry used for 3D-printing was prepared by adding a new UV-curable polyether adhesive,and the UV-curable polyether HTPB propellant grains with complex structures were fabricated by an explo-sion-proof 3D printer.In order to characterize the compatibility between the UV-curable polyether adhesive and AP or Al,the decomposition temperature of the UV-curable polyether adhesive with the addition of AP or Al was tested by DSC.The UV-curable polyether modified HTPB propellant formulations were determined by using the UV light source tests, the UV-curable depth tests, and propellant extrusion tests. The properties of UV-curable polyether propellant grains were characterized by tensile tests, porosity tests,density tests and viscosity test. The re-sults show that the UV-curable polyether adhesive is quite compatible to AP and Al;the tensile strength,the maximum elongation, the porosi-ty and the density of the 3D printed UV-curable polyether HTPB propellant grains are 0.299 MPa,22.4％,6.8％ and 1.62g/cm3 ,respectively.关键词
HTPB固体推进剂/3D打印/材料挤出/光固化聚醚Key words
HTPB solid propellant/3D-printing technology/materials extrusion/UV-curable polyether分类
航空航天引用本文复制引用
吕硕,强洪夫,陈辉,王璐,张利军,胡润芝..用于3D打印的光固化聚醚改性HTPB固体推进剂配方研究[J].固体火箭技术,2022,45(3):399-406,8.
