J. Mater. Sci. Technol. ›› 2025, Vol. 207: 86-94.DOI: 10.1016/j.jmst.2024.05.001

• Research article • Previous Articles     Next Articles

Reduced erosion and its erosion reducing mechanism of gun propellants by octaphenylsilsesquioxane

Taixin Lianga,b,c,*, Jiaxin Lua, Fei Xiaoa, Hua Guod, Chunzhi Lic, Mukun Hed, Baosheng Liue, Zeinhom M. El-Bahyg, Nawaa Ali H. Alshammarih, Xin Liaob, Salah M. El-Bahyi, Zhongliang Xiaob,*, Zhanhu Guof   

  1. aSchool of Environment and Safety Engineering, North University of China, Taiyuan 030051, China;
    bSchool of Chemistry and Chemical Engineering, Nanjing University of Science and Technology, Nanjing 210094, China;
    cLuzhou North Chemical Industries Co., LTD, Luzhou 646000, China;
    dShaanxi Key Laboratory of Macromolecular Science and Technology, School of Chemistry and Chemical Engineering, Northwestern Polytechnical University, Xi'an 710072, China;
    eCollege of Materials Science and Engineering, Taiyuan University of Science and Technology, Taiyuan 030024, China;
    fDepartment of Mechanical and Civil Engineering, Faculty of Engineering and Environment, Northumbria University, Newcastle Upon Tyne, NE1 8ST, UK;
    gDepartment of Chemistry, Faculty of Science, Al-Azhar University, Nasr City 11884, Cairo, Egypt;
    hDepartment of Chemistry, Faculty of Science, Northern Border University, Arar 73222, Saudi Arabia;
    iDepartment of Chemistry, Turabah University College, Taif University, P.O. Box 11099, Taif 21944, Saudi Arabia
  • Received:2024-02-29 Revised:2024-04-27 Accepted:2024-05-02 Published:2025-02-01 Online:2024-05-11
  • Contact: *E-mail addresses: liangtx2006@126.com (T. Liang), 332909562@qq.com (Z. Xiao)

Abstract: Low erosion high-energy propellant is one of the research directions to extend the weapon's life and improve the weapon's capability. In this study, energetic propellants containing different corrosion inhibitors were designed and prepared. Close bomb tests and semi-confined bomb experiments were used to investigate the burning and erosion properties of the propellants. The mechanism of erosion-reducing of titanium dioxide (titania, TiO2), talc, and octaphenylsilsesquioxane (OPS) on the propellant was comparatively analyzed. The results show that OPS has the lowest burning rate and the longest burning time, and a minimized loss of fire force, with the best effect of explosion heat reduction. The erosion reduction efficiency of OPS is twice that of TiO2 and talc. The mechanism analysis shows that the decomposition and heat absorption of OPS can effectively reduce the thermal erosion effect and carbon erosion, and the gas produced can reduce the loss of chamber pressure and form a uniformly distributed nano-SiO2 protective layer. This solid-state high-efficiency organosilicon erosion inhibitor is an important guide for designing high-energy low-erosion gun propellants.

Key words: Octaphenylsilsesquioxane, Propellant, Erosion inhibitors, High efficiency