EP2784054A1 - Unempfindliche Munitionstreibmittel - Google Patents

Unempfindliche Munitionstreibmittel Download PDF

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Publication number
EP2784054A1
EP2784054A1 EP13275082.9A EP13275082A EP2784054A1 EP 2784054 A1 EP2784054 A1 EP 2784054A1 EP 13275082 A EP13275082 A EP 13275082A EP 2784054 A1 EP2784054 A1 EP 2784054A1
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EP
European Patent Office
Prior art keywords
weight
energetic
component
binder
plasticiser
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
EP13275082.9A
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English (en)
French (fr)
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designation of the inventor has not yet been filed The
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BAE Systems PLC
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BAE Systems PLC
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by BAE Systems PLC filed Critical BAE Systems PLC
Priority to EP13275082.9A priority Critical patent/EP2784054A1/de
Priority to PL14712719T priority patent/PL2978730T3/pl
Priority to US14/780,412 priority patent/US9919980B2/en
Priority to EP21151135.7A priority patent/EP3838877A1/de
Priority to PCT/GB2014/050848 priority patent/WO2014155060A1/en
Priority to AU2014242706A priority patent/AU2014242706B2/en
Priority to EP14712719.5A priority patent/EP2978730B1/de
Priority to ES14712719T priority patent/ES2870548T3/es
Publication of EP2784054A1 publication Critical patent/EP2784054A1/de
Priority to IL241774A priority patent/IL241774B/en
Ceased legal-status Critical Current

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    • C—CHEMISTRY; METALLURGY
    • C06—EXPLOSIVES; MATCHES
    • C06B—EXPLOSIVES OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
    • C06B25/00—Compositions containing a nitrated organic compound
    • C06B25/34—Compositions containing a nitrated organic compound the compound being a nitrated acyclic, alicyclic or heterocyclic amine
    • C—CHEMISTRY; METALLURGY
    • C06—EXPLOSIVES; MATCHES
    • C06B—EXPLOSIVES OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
    • C06B45/00—Compositions or products which are defined by structure or arrangement of component of product
    • C06B45/04—Compositions or products which are defined by structure or arrangement of component of product comprising solid particles dispersed in solid solution or matrix not used for explosives where the matrix consists essentially of nitrated carbohydrates or a low molecular organic explosive
    • C06B45/06—Compositions or products which are defined by structure or arrangement of component of product comprising solid particles dispersed in solid solution or matrix not used for explosives where the matrix consists essentially of nitrated carbohydrates or a low molecular organic explosive the solid solution or matrix containing an organic component
    • C06B45/10—Compositions or products which are defined by structure or arrangement of component of product comprising solid particles dispersed in solid solution or matrix not used for explosives where the matrix consists essentially of nitrated carbohydrates or a low molecular organic explosive the solid solution or matrix containing an organic component the organic component containing a resin
    • C—CHEMISTRY; METALLURGY
    • C06—EXPLOSIVES; MATCHES
    • C06B—EXPLOSIVES OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
    • C06B45/00—Compositions or products which are defined by structure or arrangement of component of product
    • C06B45/04—Compositions or products which are defined by structure or arrangement of component of product comprising solid particles dispersed in solid solution or matrix not used for explosives where the matrix consists essentially of nitrated carbohydrates or a low molecular organic explosive
    • C06B45/06—Compositions or products which are defined by structure or arrangement of component of product comprising solid particles dispersed in solid solution or matrix not used for explosives where the matrix consists essentially of nitrated carbohydrates or a low molecular organic explosive the solid solution or matrix containing an organic component
    • C06B45/10—Compositions or products which are defined by structure or arrangement of component of product comprising solid particles dispersed in solid solution or matrix not used for explosives where the matrix consists essentially of nitrated carbohydrates or a low molecular organic explosive the solid solution or matrix containing an organic component the organic component containing a resin
    • C06B45/105—The resin being a polymer bearing energetic groups or containing a soluble organic explosive

Definitions

  • the invention relates to Insensitive Munition (IM) energetic materials particularly IM propellant compositions, and yet further to nitrocellulose-free IM propellants.
  • IM Insensitive Munition
  • Low and high energy gun propellants and their energetic compositions are based on colloidal mixtures of nitroglycerine, nitrocellulose and nitroguanidine (also called picrite) in varying proportions, such as those discussed in GB2371297 .
  • the technology used to manufacture these materials has changed little in 100 years.
  • Colloidal compositions are, generally, classed as single, double, or, triple base compositions depending on the proportions of the major constituents present (i.e. one, two or three major components, respectively). Other components, e.g. nitramines, have been incorporated to increase the force constant or energy level of these compositions; colloidal compositions comprising three, or, more major components, may be referred to as multibase compositions.
  • Colloidal propellants particularly for high energy applications, suffer from the disadvantage that they are highly vulnerable to unwanted ignition when in a hostile environment and subjected to attack by an energetic projectile, e.g. a projectile comprising a shaped warhead charge.
  • an energetic projectile e.g. a projectile comprising a shaped warhead charge.
  • an energetic composition suitable for use as a propellant comprises the following components in the following relative proportions:
  • component B provides the high energy capability of the composition.
  • component A present in the range of from 5-25%wt, provides a propellant that has an increased IM response to shaped charge attack.
  • IM energetic material present in the range of from 5-25%wt
  • component A comprises of from 10% to 20% by weight
  • component B comprises of from 55% to 70% by weight
  • component C comprises of from 8% to 16% by weight
  • component D comprises of from 5% to 10% by weight of the said composition, the percentages adding to 100 per cent.
  • Component C and D provides processability enabling mixtures to be formed together with Components A and B and which may be worked into a suitable dough-like material which may be pressed, rolled or extruded to form suitable propellant products.
  • the mutual combination of these components is specially selected in compositions according to the present invention because of the unexpected advantages such a combination provides as follows.
  • compositions according to the present invention can be suitably processed to provide propellant materials, eg for use as gun or rocket propellants, especially gun propellants, which unexpectedly and beneficially can show an improved, ie. reduced vulnerability over colloidal propellants, but without a corresponding decrease in energy normally associated with such an improvement.
  • propellant materials eg for use as gun or rocket propellants, especially gun propellants, which unexpectedly and beneficially can show an improved, ie. reduced vulnerability over colloidal propellants, but without a corresponding decrease in energy normally associated with such an improvement.
  • the propellant compositions embodying the invention are suitable for forming propellant products having unexpectedly all of aforementioned desirable properties.
  • the component A may be selected from a highly IM energetic filler, such as, for example, Nitrotriazolone (NTO), Hexanitrostilbene (HNS), Nitroguanidine (Picrite), Triaminotrinitrobenzene (TATB), Guarnylureadinitramide (FOX-12), 1,1-diamino 2,2-dinitro ethylene (FOX-7).
  • a highly IM energetic filler such as, for example, Nitrotriazolone (NTO), Hexanitrostilbene (HNS), Nitroguanidine (Picrite), Triaminotrinitrobenzene (TATB), Guarnylureadinitramide (FOX-12), 1,1-diamino 2,2-dinitro ethylene (FOX-7).
  • the IM energetic filler is one which, without modification, has an FOI greater than 100.
  • Many energetic fillers, including RDX and HMX may be modified, either via stabilisers or coatings such that they have a degree of IM compliance,
  • the component A is selected from a material which is inherently IM, such as will have an FOI>100, without any processing or modification. It has been advantageously found that the inclusion of an IM energetic fill in the amount of from 5% to 25% by weight, provides a final composition which has a high level of IM compliance.
  • high energy energetic filler examples include heteroalicyclic nitramines, such as for example RDX(cyclo-1,3,5-trimethylene, 2,4,6-trinitramine, cyclonite or Hexagen), HMX (cyclo-1,3,5,7-tetramethylene-2,4,6,8-tetranitramine, Octogen) or TATND (tetranitro-tetraminodecalin) and mixtures thereof.
  • heteroalicyclic nitramines such as for example RDX(cyclo-1,3,5-trimethylene, 2,4,6-trinitramine, cyclonite or Hexagen)
  • HMX cyclo-1,3,5,7-tetramethylene-2,4,6,8-tetranitramine, Octogen
  • TATND tetranitro-tetraminodecalin
  • high energetic fillers may be TAGN, aromatic nitramines such as tetryl, ethylene dinitramine, and nitrate esters such as nitroglycerine (glycerol trinitrate), butane triol trinitrate or pentaerythrital tetranitrate, and inorganic perchlorates and nitrates such as ammonium perchlorate optionally together with metallic fuel such as aluminium particles.
  • aromatic nitramines such as tetryl, ethylene dinitramine
  • nitrate esters such as nitroglycerine (glycerol trinitrate), butane triol trinitrate or pentaerythrital tetranitrate
  • inorganic perchlorates and nitrates such as ammonium perchlorate optionally together with metallic fuel such as aluminium particles.
  • the composition comprises component C, a binder and may be selected from a non-energetic binder and/or an energetic binder, present in the range of from 8 to 16%wt.
  • the binder is a mixture of an energetic and non-energetic binder; more preferably the energetic binder is present in the range of from 5-10% by weight, non-energetic binder is present in the range of from 5-15% by weight, with a binder %wt in the range of from 8%- 16%wt.
  • suitable non-energetic binder materials which may be blended with EVA are cellulosic materials such as esters, cellulose acetate, cellulose acetate butyrate, polyurethanes, polyesters, polybutadienes, polyethylenes, polyvinyl acetate and blends and/or copolymers thereof.
  • Suitable energetic binder materials which may be used along side a non energetic binder, such as EVA are nitrocellulose, polyvinyl nitrate, nitroethylene, nitroallyl acetate, nitroethyl acrylate, nitroethy methacrylate, trinitroethyl acrylate, dinitropropyl acrylate, C-nitropolystyrene and its derivatives, polyurethanes with aliphatic C- and N- nitro groups, polyesters made from dinitrocarboxylic acids and dinitrodiol and homopolymers of 3-nitrato-3 methyl oxetane (PolyNIMMO).
  • the composition comprises component D, a plasticiser which may be selected from a non-energetic plasticiser and/or an energetic plasticiser.
  • the plasticiser is a mixture of energetic and non-energetic plasticisers; yet more preferably when both are present the; energetic plasticiser is present in the range of from 0- 8% by weight, and non-energetic plasticiser is present in the range of from 2-10% by weight; such that the total plasticiser is preferably 5-10%wt, wherein the energetic plasticiser %wt is greater than the non-energetic plasticiser %wt.
  • energetic plasticisers may be Butyl NENA, GAP (glycidyl azide polymer), BDNPA/F (bis-2,2-dinitropropylacetol/formal), dimethylmethylene dinitroamine, bis(2,2,2-trinitropropyl)formal, bis(2,2,2-trinitroethyl)formal, bis (2-fluoro-2,2-dinitroethyl)formal, diethylene gylcol dinitrate, glycerol trinitrate, glycol trinitrate, triethylene glycol dinitrate, tetrethylene glycol dinitrate, trimethylolethane trinitrate, butanetriol trinitrate, or 1,2,4-butanetriol trinitrate.
  • Non-energetic plasticisers may be, Di Octyl adipate(DOA), Di Octyl Sebacate (DOS), dialkyl esters or sebacic adipic. or, triacetin, tricresyl phosphate, polyalkylene glycols and their alkyl ether derivatives, eg polyethylene glycol, polypropylene gycol, and diethylene glycol butyl ether.
  • DOA Di Octyl adipate
  • DOS Di Octyl Sebacate
  • dialkyl esters or sebacic adipic or, triacetin, tricresyl phosphate, polyalkylene glycols and their alkyl ether derivatives, eg polyethylene glycol, polypropylene gycol, and diethylene glycol butyl ether.
  • minor additives may for example comprise one or more stabilisers, e.g. carbamite (N,N 1 -diphenyl, NN 1 -diethylurea) or PNMA (para-nitromethylmethoxyaniline); and/or one or more ballistic modifiers, e.g. carbon black or lead salts: and/or one or more flash suppressants, e.g. one or more sodium or potassium salts, e.g. sodium or potassium sulphate or bicarbonate and one or more binder-to-energetic filler coupling agents and one or more antioxidants.
  • stabilisers e.g. carbamite (N,N 1 -diphenyl, NN 1 -diethylurea) or PNMA (para-nitromethylmethoxyaniline)
  • ballistic modifiers e.g. carbon black or lead salts
  • flash suppressants e.g. one or more sodium or potassium salts, e.g. sodium or potassium sulphate or bicarbonate
  • Nitrocellulose is a very common energetic binder, however reproducibility of the cellulose source is a problem as it is commonly derived from natural sources. To ensure reproducibility of the final propellant, the source would preferably tightly controlled. It has very advantageously been found that in a highly preferred arrangement it is possible to remove the nitrocellulose, such that there is provided a non- nitrocellulose propellant composition, wherein component A comprises of from 8% to 12% by weight, component B comprises of from 65% to 75% by weight and component C comprises of from 8% to 12% by weight, wherein the non-energetic binder is present in the range of from 8%-12% by weight component D comprises of from 2%-10% energetic plasticiser is present in the range of from 3- 8% by weight non-energetic plasticiser is present in the range of from 2-6% by weight, of the said composition, the percentages adding to 100%.
  • component A comprises of from 8% to 12% by weight
  • component B comprises of from 65% to 75% by weight
  • component C comprises of from 8% to 12% by weight
  • a gun propellant comprising sticks or granules comprising a composition according to any one of the preceding claims.
  • compositions according to the present invention may be processed into propellants by techniques which are known to those skilled in the art.
  • the ingredients are incorporated in a suitable kneader to form a homogeneous composition.
  • the composition produced is pressed, rolled or extruded in the form of a dough-like material through suitably shaped extrusion dies. Extrusion may be carried out using a co-rotating twin screw extrusion machine.
  • Sticks are usually formed by cutting to suitable length rods or strands extruded through suitable dies giving a shape which could include a longitudinal slot.
  • Granules are usually similarly formed by cutting to much shorter lengths rods or sticks obtained by extrusion. Normally, such granules have small holes, ego seven holes running lengthwise therethrough to provide suitable burning surfaces.
  • compositions are outlined in Table 1, below.
  • Table 1 IM propellant compositions Component Ingredient Comp 503 %wt Comp 519% wt Comp 516 %wt Comp 521 %wt Comp 424 % wt Comp 463 % wt component A Nitroguanidine 18.5 18.5 10 10 - - component B RDX 56 - 70 component B HMX - 56 70 - 74.5 74.5 component C EVA 7 7 11 11 7 component C Nitrocellulose 8.5 8.5 - - 8.5 8.5 component D Butyl NENA 6 6 5 5 component D DOA 3 3 4 4 9 component D DBP 9 minor carbamite 1 1 - - 1 1 SCJ attack response Type V V n/r n/r III/IV III/IV
  • compositions in Table 1 were subjected to a test set-up in accordance with STANAG 4526, namely response to a shaped charge attack.
  • the response was measured by taking into account the combined evidence from blast overpressure results, witness plate damage observed and from propellant debris observations.
  • the prior art compounds, 424 and 463 contain largely the same compounds, but do not have an IM filler present, ie component A. It was observed that the IM response was III/IV, which is a much more violent response compared to that of the compounds of the invention.
  • FIG 1 there is provided an end portion of a bundle 1 of a plurality of propellant sticks 2.
  • a resilient ligature 3 has been wound around the plurality of sticks 2 three times using a tying machine (not shown). The securing of the ligature 3 may be afforded by using a knot and subsequently cutting the ligature 3. Further ligatures may be applied to other distinct circumferences and in fact it may be preferred to have at least two ligatures applied at distinct circumferences in order to prevent the propellant sticks 2 from splaying.

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Molecular Biology (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Medicinal Preparation (AREA)
EP13275082.9A 2013-03-27 2013-03-27 Unempfindliche Munitionstreibmittel Ceased EP2784054A1 (de)

Priority Applications (9)

Application Number Priority Date Filing Date Title
EP13275082.9A EP2784054A1 (de) 2013-03-27 2013-03-27 Unempfindliche Munitionstreibmittel
PL14712719T PL2978730T3 (pl) 2013-03-27 2014-03-18 Mało wrażliwe materiały miotające do amunicji
US14/780,412 US9919980B2 (en) 2013-03-27 2014-03-18 Insensitive munition propellants
EP21151135.7A EP3838877A1 (de) 2013-03-27 2014-03-18 Unempfindliche munitionstreibmittel
PCT/GB2014/050848 WO2014155060A1 (en) 2013-03-27 2014-03-18 Insensitive munition propellants
AU2014242706A AU2014242706B2 (en) 2013-03-27 2014-03-18 Insensitive munition propellants
EP14712719.5A EP2978730B1 (de) 2013-03-27 2014-03-18 Unempfindliche munitionstreibmittel
ES14712719T ES2870548T3 (es) 2013-03-27 2014-03-18 Propulsores de munición insensible
IL241774A IL241774B (en) 2013-03-27 2015-09-21 Insensitive propellant explosives

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP13275082.9A EP2784054A1 (de) 2013-03-27 2013-03-27 Unempfindliche Munitionstreibmittel

Publications (1)

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EP2784054A1 true EP2784054A1 (de) 2014-10-01

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EP13275082.9A Ceased EP2784054A1 (de) 2013-03-27 2013-03-27 Unempfindliche Munitionstreibmittel

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105198823A (zh) * 2015-11-06 2015-12-30 西安近代化学研究所 4,6-二硝基苯并连三唑-1-氧化物脒基脲盐化合物
CN111019723A (zh) * 2019-12-17 2020-04-17 湖北航天化学技术研究所 一种洁净型燃气发生剂

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4092188A (en) * 1977-05-16 1978-05-30 Lovelace Alan M Acting Adminis Nitramine propellants
US5034072A (en) * 1985-06-28 1991-07-23 Societe Nationale Des Poudres Et Explosifs 5-oxo-3-nitro-1,2,4-triazole in gunpowder and propellant compositions
US5034073A (en) * 1990-10-09 1991-07-23 Aerojet General Corporation Insensitive high explosive
GB2265896A (en) * 1990-07-02 1993-10-13 Secr Defence Extrudable gun propellant composition
US5529649A (en) * 1993-02-03 1996-06-25 Thiokol Corporation Insensitive high performance explosive compositions
WO1999035108A1 (de) * 1998-01-05 1999-07-15 Dynamit Nobel Gmbh Explosivstoff- Und Systemtechnik Treibmittel
GB2371297A (en) 1989-04-18 2002-07-24 Royal Ordnance Plc Propellant compositions and propellants produced therefrom
WO2009131563A1 (en) * 2008-04-22 2009-10-29 The Government Of The U.S.A, As Represented By The Secretary Of The Navy Office Of Counsel Insensitive gun propellant, ammunition round assembly, armament system, and related methods
WO2010023450A1 (en) * 2008-08-29 2010-03-04 Bae Systems Plc Cast explosive composition
DE102010005923A1 (de) * 2009-12-23 2011-06-30 Diehl BGT Defence GmbH & Co. KG, 88662 Pressbares insensitives Sprengstoffgemisch

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4092188A (en) * 1977-05-16 1978-05-30 Lovelace Alan M Acting Adminis Nitramine propellants
US5034072A (en) * 1985-06-28 1991-07-23 Societe Nationale Des Poudres Et Explosifs 5-oxo-3-nitro-1,2,4-triazole in gunpowder and propellant compositions
GB2371297A (en) 1989-04-18 2002-07-24 Royal Ordnance Plc Propellant compositions and propellants produced therefrom
GB2265896A (en) * 1990-07-02 1993-10-13 Secr Defence Extrudable gun propellant composition
US5034073A (en) * 1990-10-09 1991-07-23 Aerojet General Corporation Insensitive high explosive
US5529649A (en) * 1993-02-03 1996-06-25 Thiokol Corporation Insensitive high performance explosive compositions
WO1999035108A1 (de) * 1998-01-05 1999-07-15 Dynamit Nobel Gmbh Explosivstoff- Und Systemtechnik Treibmittel
WO2009131563A1 (en) * 2008-04-22 2009-10-29 The Government Of The U.S.A, As Represented By The Secretary Of The Navy Office Of Counsel Insensitive gun propellant, ammunition round assembly, armament system, and related methods
WO2010023450A1 (en) * 2008-08-29 2010-03-04 Bae Systems Plc Cast explosive composition
DE102010005923A1 (de) * 2009-12-23 2011-06-30 Diehl BGT Defence GmbH & Co. KG, 88662 Pressbares insensitives Sprengstoffgemisch

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105198823A (zh) * 2015-11-06 2015-12-30 西安近代化学研究所 4,6-二硝基苯并连三唑-1-氧化物脒基脲盐化合物
CN105198823B (zh) * 2015-11-06 2017-11-24 西安近代化学研究所 4,6‑二硝基苯并连三唑‑1‑氧化物脒基脲盐化合物
CN111019723A (zh) * 2019-12-17 2020-04-17 湖北航天化学技术研究所 一种洁净型燃气发生剂

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