• 专利标题:   Enhancing burning rate of solid propellant for rocket motor by coating graphene oxide onto ammonium perchlorate and dispersing composite in solid propellant of neat ammonium perchlorate and hydroxy terminated polybutadiene.
  • 专利号:   WO2023012787-A1, IL290296-A, IL290296-B
  • 发明人:   WEINREB A, KENIG S, NAVEH N, KIDRON M
  • 专利权人:   POWDER FUELS LTD, POWDER FUELS LTD
  • 国际专利分类:   C01B032/198, C06B023/00, C06B043/00, C06D005/06, C06D005/10
  • 专利详细信息:   WO2023012787-A1 09 Feb 2023 C06B-023/00 202319 Pages: 19 English
  • 申请详细信息:   WO2023012787-A1 WOIL050828 01 Aug 2022
  • 优先权号:   IL285325, IL290296

▎ 摘  要

NOVELTY - Enhancing (M1) the burning rate of a solid propellant for a rocket motor, comprises: forming a composite of graphene oxide (GO) and ammonium perchlorate (AP) by coating GO onto AP, where the composite is comprised of APGO particles having a diameter of 5-60 μ and the composite includes at least 10 wt.% GO; and dispersing the composite in a solid propellant, where the solid propellant also includes neat AP and hydroxy terminated polybutadiene (HTPB). USE - The method is useful for enhancing the burning rate of a solid propellant for a rocket motor. ADVANTAGE - The method utilizes: solid propellant containing the AP coated with GO which exhibited an increase in burning rate of 15% at 80 atmosphere, compared to a propellant containing AP but without the GO; combination APGO as a burn-rate enhancer, produces significant burning rate enhancement results; and 10-20 wt.% APGO which achieves significant reduction in decomposition temperature and increase in exothermic enthalpy. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are also included for: enhancing (M2) the burning rate of a solid propellant for a rocket motor, comprising forming a composite of epoxy-modified GO (EMGO) and AP by coating EMGO onto AP, where the composite is comprised of APEMGO particles having a diameter of 5-60 μ , and the composite includes at least 10 wt.% EMGO and dispersing the composite in a solid propellant, the solid propellant also includes neat AP and HTPB; a burning rate enhancer, comprising a composite of GO coated onto AP to form APGO particles having a diameter of 5-60 μ , where the composite includes at least 10 wt.% GO; a solid propellant for a rocket motor, comprising the burning rate enhancer, neat AP, and HTPB; a burning rate enhancer, comprising a composite of EMGO coated onto AP to form APEMGO particles having a diameter of 5-60 μ , where the composite includes at least 10 wt.% EMGO; and a solid propellant for a rocket motor, comprising the burning rate enhancer, neat AP, and HTPB.