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Composite composition for solid propellants including a ferrocene derivative and a submicronic aluminum charge, solid propellant, and load

A ferrocene derivative, solid propellant technology, applied in non-explosive/non-thermal agent components, explosives, offensive equipment, etc., can solve problems such as increasing the sensitivity of burning rate

Inactive Publication Date: 2011-11-23
SME LIMITED
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the present inventors co-introduced the ferrocene catalyst and the submicron aluminum into the composition of the composite solid propellant and obtained unexpected results (see especially those results given in Table 2 below: increased firing rate without increasing sensitivity), thus nullifying the bias

Method used

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  • Composite composition for solid propellants including a ferrocene derivative and a submicronic aluminum charge, solid propellant, and load
  • Composite composition for solid propellants including a ferrocene derivative and a submicronic aluminum charge, solid propellant, and load
  • Composite composition for solid propellants including a ferrocene derivative and a submicronic aluminum charge, solid propellant, and load

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Embodiment Construction

[0054] Table 2 below gives the characteristics and properties of the compositions and propellants A, B, C and D. These four compositions contained ammonium perchlorate oxidizing charge, aluminum charge, liquid polyol polymer, plasticizer (dioctyl azelate), crosslinking agent and known additives, and for composition C and D, also containing a ferrocene combustion catalyst: Butacene . Although compositions A and B are not strictly comparable to compositions C and D for what they have in common, the magnitudes given reveal the advantages of the invention.

[0055] Composition A is a prior art conventional composition of the type used in space applications. It does not contain ferrocene derivatives and contains micron aluminum with a D-median value of 30 μm.

[0056] Composition B is of the same type as Composition A. It differs from composition A primarily in that the aluminum particle size is submicron.

[0057] Composition C contains a ferrocene derivative (called Butacen...

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Abstract

The present invention relates to composite compositions for solid propellants including an oxidizing charge, a liquid polyol polymer, a combustion catalyst consisting of a ferrocene derivative, and an aluminum charge. Said aluminum charge is characteristically submicronic, or even nanometric. The present invention also relates to pasty or solid propellant, and to the corresponding solid propellant loads.

Description

technical field [0001] The invention relates to composite compositions for solid propellants, propellants based on said compositions (paste state or solid state) and grains containing said solid propellants. The solid propellants under consideration are those with high burn rate and high specific thrust. It is very particularly suitable for use in propellant grains for rockets and missiles. Background technique [0002] Compositions for propellants, known as composite compositions, are widely used in rocket propulsion applications in both military and It is composed of material (usually with a median diameter of 5 μm to 30 μm) and polyurethane (PU) adhesive. [0003] The propellant is present in the paste state during the mixing and pouring stages used to prepare the grains (reagents for crosslinking the polymers of the polyurethane adhesive have not yet been added to the composition, or a crosslinking agent has been added, but The cross-linking of the polymer of the adhe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C06B23/00C06B33/06C06B45/10
CPCC06B33/06C06B45/10C06B23/007C06B23/00
Inventor 埃莱娜·布朗沙尔克里斯蒂昂·佩鲁特
Owner SME LIMITED
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