NO167650B - PROCEDURE FOR MANUFACTURING A PLASTIC BONDED EXPLOSION. - Google Patents
PROCEDURE FOR MANUFACTURING A PLASTIC BONDED EXPLOSION. Download PDFInfo
- Publication number
- NO167650B NO167650B NO902036A NO902036A NO167650B NO 167650 B NO167650 B NO 167650B NO 902036 A NO902036 A NO 902036A NO 902036 A NO902036 A NO 902036A NO 167650 B NO167650 B NO 167650B
- Authority
- NO
- Norway
- Prior art keywords
- explosive
- plastic
- pbx
- wax
- particles
- Prior art date
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- 239000004033 plastic Substances 0.000 title claims description 29
- 229920003023 plastic Polymers 0.000 title claims description 29
- 238000000034 method Methods 0.000 title claims description 10
- 238000004519 manufacturing process Methods 0.000 title claims description 6
- 238000004880 explosion Methods 0.000 title 1
- 239000002360 explosive Substances 0.000 claims description 32
- 239000002245 particle Substances 0.000 claims description 18
- IMSODMZESSGVBE-UHFFFAOYSA-N 2-Oxazoline Chemical compound C1CN=CO1 IMSODMZESSGVBE-UHFFFAOYSA-N 0.000 claims description 16
- 239000011230 binding agent Substances 0.000 claims description 11
- 239000002904 solvent Substances 0.000 claims description 8
- 239000000126 substance Substances 0.000 claims description 8
- XTFIVUDBNACUBN-UHFFFAOYSA-N 1,3,5-trinitro-1,3,5-triazinane Chemical compound [O-][N+](=O)N1CN([N+]([O-])=O)CN([N+]([O-])=O)C1 XTFIVUDBNACUBN-UHFFFAOYSA-N 0.000 claims description 6
- 239000000028 HMX Substances 0.000 claims description 6
- 239000008187 granular material Substances 0.000 claims description 6
- UZGLIIJVICEWHF-UHFFFAOYSA-N octogen Chemical compound [O-][N+](=O)N1CN([N+]([O-])=O)CN([N+]([O-])=O)CN([N+]([O-])=O)C1 UZGLIIJVICEWHF-UHFFFAOYSA-N 0.000 claims description 6
- UOCLXMDMGBRAIB-UHFFFAOYSA-N 1,1,1-trichloroethane Chemical compound CC(Cl)(Cl)Cl UOCLXMDMGBRAIB-UHFFFAOYSA-N 0.000 claims description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 3
- TZRXHJWUDPFEEY-UHFFFAOYSA-N Pentaerythritol Tetranitrate Chemical compound [O-][N+](=O)OCC(CO[N+]([O-])=O)(CO[N+]([O-])=O)CO[N+]([O-])=O TZRXHJWUDPFEEY-UHFFFAOYSA-N 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- 229910002804 graphite Inorganic materials 0.000 claims description 3
- 239000010439 graphite Substances 0.000 claims description 3
- 239000013618 particulate matter Substances 0.000 claims description 3
- XSTXAVWGXDQKEL-UHFFFAOYSA-N Trichloroethylene Chemical group ClC=C(Cl)Cl XSTXAVWGXDQKEL-UHFFFAOYSA-N 0.000 claims description 2
- 238000007796 conventional method Methods 0.000 claims description 2
- 239000007787 solid Substances 0.000 claims 1
- 239000013078 crystal Substances 0.000 description 6
- 239000006185 dispersion Substances 0.000 description 5
- 239000002270 dispersing agent Substances 0.000 description 4
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 description 3
- MQIUGAXCHLFZKX-UHFFFAOYSA-N Di-n-octyl phthalate Natural products CCCCCCCCOC(=O)C1=CC=CC=C1C(=O)OCCCCCCCC MQIUGAXCHLFZKX-UHFFFAOYSA-N 0.000 description 3
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- 239000004677 Nylon Substances 0.000 description 3
- 239000004793 Polystyrene Substances 0.000 description 3
- BJQHLKABXJIVAM-UHFFFAOYSA-N bis(2-ethylhexyl) phthalate Chemical compound CCCCC(CC)COC(=O)C1=CC=CC=C1C(=O)OCC(CC)CCCC BJQHLKABXJIVAM-UHFFFAOYSA-N 0.000 description 3
- 229920001778 nylon Polymers 0.000 description 3
- 238000007906 compression Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 229920002223 polystyrene Polymers 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 238000009835 boiling Methods 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000007931 coated granule Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 238000005469 granulation Methods 0.000 description 1
- 230000003179 granulation Effects 0.000 description 1
- 150000002391 heterocyclic compounds Chemical class 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000006223 plastic coating Substances 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
Landscapes
- Lining Or Joining Of Plastics Or The Like (AREA)
Description
Denne oppfinnelse angår en forbedret fremgangsmåte for fremstilling av slike plastbundne sprengstoffer som i faget betegnes som PBX-sprengstoffer. This invention relates to an improved method for the production of such plastic-bound explosives which are known in the art as PBX explosives.
Denne type sprengstoffer består av krystallinske eller på annen måte partikkelformige eksplosive stoffer, som f.eks. hexogen, octogen eller PETN, som med en egnet plast som bindemiddel er blitt sammenføyet til ønskede ladningsstørrel-ser og -former ved sammenpresning og eventuell tilførsel av varme. Som eksempler på plastbindemidler for PBX kan nevnes nylon og polystyren. I PBX kan også partikkelformige ikke-eksplosive stoffer, som f.eks. aluminiumpulver og grafitt, inngå. This type of explosive consists of crystalline or otherwise particulate explosive substances, such as hexogen, octogen or PETN, which, with a suitable plastic as a binder, has been joined to desired charge sizes and shapes by compression and possible application of heat. Examples of plastic binders for PBX include nylon and polystyrene. In the PBX, particulate non-explosive substances, such as e.g. aluminum powder and graphite, included.
Rent generelt fremstilles disse plastbundne sprengstoffer (PBX) ved at man tilsetter en plastoppløsning eller -dispersjon til en vandig oppslemning eller dispersjon av det aktuelle krystallinske og/eller partikkelformige sprengstoff, hvoretter man under kontinuerlig blanding suksessivt avdriver eller på annen måte fjerner det oppløsnings- eller disperge-ringsmiddel i hvilket sprengstoffet var oppløst eller dispergert, hvoretter plastbindemidlet i sin tur bringes til å falle ut på sprengstoffkrystallene eller -partiklene. Plastbelegget forårsaker også som regel en viss granulering, i og med at de enkelte krystaller eller partikler sammenbakes til granuler. Disse plastbelagte granuler kan senere sammenbakes gjennom sammenpressing og varmetilførsel til sprenglegemer av ønsket størrelse og form. Generally speaking, these plastic-bound explosives (PBX) are produced by adding a plastic solution or dispersion to an aqueous slurry or dispersion of the relevant crystalline and/or particulate explosive, after which, during continuous mixing, the solution or dispersant in which the explosive was dissolved or dispersed, after which the plastic binder is in turn caused to fall out onto the explosive crystals or particles. The plastic coating also usually causes a certain granulation, in that the individual crystals or particles are baked together into granules. These plastic-coated granules can later be baked together through compression and heat application into explosives of the desired size and shape.
Mange av de plaster som ellers er utmerkede PBX-bindemidler, blant dem sågar det vanligvis benyttede nylon, lider av den mangel av de oppviser en utilfredsstillende grad av adhesjon til sprengstoffkrystallene. Dette medfører at en be-tydelig andel av krystallene kan forbli ubelagte, mens plasten i stedet - sammen med andre sprengstoffkrystaller - danner store aggregater med en høy konsentrasjon av plast. Many of the plastics which are otherwise excellent PBX binders, among them even the commonly used nylon, suffer from the deficiency of exhibiting an unsatisfactory degree of adhesion to the explosive crystals. This means that a significant proportion of the crystals can remain uncoated, while the plastic instead - together with other explosive crystals - forms large aggregates with a high concentration of plastic.
Det har nu vist seg mulig å avhjelpe denne mangel. Det har nemlig nu vist seg at det kan fremstilles et utmerket utgangsmateriale for PBX i form av jevnt plastbelagte spreng-stof f granuler , dersom sprengstoffkrystallene eller -partiklene først belegges med et tynt lag oxazolinvoks, og de oxazolinvoksbelagte partikler deretter granuleres med det aktuelle plastbindemiddel. Oxazolinvoksen har nemlig vist seg å ha en utmerket affinitet til de angjeldende partikler og har des-suten vist seg å utgjøre et utmerket underlag for videre De-legging av partiklene med de plasttyper som er aktuelle som bindemidler i PBX. It has now proved possible to remedy this deficiency. It has now been shown that an excellent starting material for PBX can be produced in the form of uniformly plastic-coated explosive granules, if the explosive crystals or particles are first coated with a thin layer of oxazoline wax, and the oxazoline wax-coated particles are then granulated with the relevant plastic binder. The oxazoline wax has indeed been shown to have an excellent affinity for the particles in question and has also been shown to constitute an excellent substrate for further de-laying of the particles with the types of plastics that are relevant as binders in PBX.
Med oppfinnelsen tilveiebringes det således en fremgangsmåte for fremstilling av et plastbundet sprengstoff (PBX) inneholdende krystallinske eller på annen måte partikkelformige eksplosive stoffer, som f.eks. hexogen, octogen eller PETN, samt eventuelle ikke-eksplosive partikkelformige stoffer, som f.eks. aluminium og grafitt, ved bruk av en plast av i og for seg kjent type som bindemiddel mellom de angjeldende partikler. Den nye fremgangsmåte er karakteristisk ved at de eksplosive stoffer og eventuelt ikke-eksplosivt partikkelformig stoff dispergeres i vann, og en oxazolinvoks oppløst i et oppløsningsmiddel som er i stand til å oppløse denne voks, som f.eks. triklorethylen eller klorothen (methylkloroform), deretter tilføres, hvoretter oppløsningsmidlet avdrives, slik at oxazolinvoksen bringes til å avsettes på partiklene, og de oppnådde oxazolinvoksbelagte partikler deretter belegges på i og for seg kjent måte og eventuelt granuleres med et plastbindemiddel av den type som benyttes for fremstilling av plastbundne sprengstoffer (PBX), hvoretter de derved oppnådde granuler sammenføyes til sprengstofflegemer av ønsket størrelse og form i henhold til konvensjonell teknikk. The invention thus provides a method for producing a plastic bound explosive (PBX) containing crystalline or otherwise particulate explosive substances, such as e.g. hexogen, octogen or PETN, as well as any non-explosive particulate substances, such as e.g. aluminum and graphite, using a plastic of a known type as a binder between the particles in question. The new method is characterized in that the explosive substances and possibly non-explosive particulate matter are dispersed in water, and an oxazoline wax dissolved in a solvent capable of dissolving this wax, such as e.g. trichlorethylene or chlorothene (methylchloroform), is then added, after which the solvent is driven off, so that the oxazoline wax is brought to deposit on the particles, and the obtained oxazoline wax-coated particles are then coated in a manner known per se and possibly granulated with a plastic binder of the type used for production of plastic bound explosives (PBX), after which the resulting granules are combined into explosive bodies of the desired size and shape according to conventional techniques.
Først etter at sprengstoffpartiklene således er blitt forsynt med et tynt, hovedsakelig fullstendig dekkende belegg av oxazolinvoks tilføres det aktuelle plastbindemiddel oppløst eller dispergert i oppløsnings- eller dispergeringsmidlet. Ved hjelp av den nye fremgangsmåte oppnåes et utmerket PBX be-stående jevnstore granuler som er fullstendig dekket av et jevntykt plastsjikt. Only after the explosive particles have thus been provided with a thin, essentially completely covering coating of oxazoline wax is the relevant plastic binder dissolved or dispersed in the dissolving or dispersing agent added. With the help of the new method, an excellent PBX is obtained consisting of uniformly sized granules which are completely covered by a uniformly thick plastic layer.
Om plastoppløsningen eller dispersjonen tilføres drå-pevis eller til en sprengstoffdispersjon som har en høyere temperatur enn kokepunktet for oppløsnings- eller dispergeringsmidlet for plasten, slik at dette koker bort mer eller mindre momentant, eller om man tilfører hele plastsatsen til den kalde sprengstoffdispersjon og først deretter øker dennes temperatur for avdampning av oppløsnings- eller dispergeringsmidlet for plasten, har ingen betydning ved fremgangsmåten Whether the plastic solution or dispersion is added drop by drop or to an explosive dispersion that has a higher temperature than the boiling point of the solvent or dispersant for the plastic, so that this boils away more or less instantaneously, or whether the entire batch of plastic is added to the cold explosive dispersion and only then increases its temperature for evaporation of the solvent or dispersant for the plastic, has no significance in the process
ifølge oppfinnelsen. according to the invention.
Med betegnelsen "oxazolinvoks" menes en dobbeltumet-tet heterocyklisk forbindelse utvunnet fra nitroparaffiner. Oxazolinvoksen har et smeltepunkt på ca. 160°C og en molekyl-vekt på ca. 1352. Den føres i handelen bl.a. under betegnelsen "Oxazolinvoks TX 2". The term "oxazoline wax" refers to a doubly unsaturated heterocyclic compound obtained from nitroparaffins. The oxazoline wax has a melting point of approx. 160°C and a molecular weight of approx. 1352. It is carried in the trade i.a. under the designation "Oxazoline wax TX 2".
Fremgangsmåten ifølge oppfinnelsen illustreres i de følgende eksempler. The method according to the invention is illustrated in the following examples.
Eksempel 1 Example 1
Den følgende fremgangsmåte ble benyttet for å fremstille det plastbundne sprengstoff (PBX) PBX-MIL Spee. Type A inneholdende 8,5% polystyren (PS), 1,5% dioctylfthalat (DOP) og 90,0% hexogen. 90 g hexogen (midlere partikkelstørrelse ca. 100 pm) ble oppslemmet i 500 ml vann. 1,5 ml oxazolinoppløsning (15 g/l klorothen) ble tilsatt, og satsen ble oppvarmet til 90°C. En oppløsning av 8,5 g PS og 1,5 g DOP i 50 g methylethylketon ble tilsatt, og oppløsningsmidlet ble avdestillert. Satsen ble kjølt, og produktet ble frafiltrert og tørket. Resultatet ble et utmerket granulert PBX, som fullt ut tilfredsstilte den militære standard MIL-P 14999. The following procedure was used to produce the plastic bonded explosive (PBX) PBX-MIL Spee. Type A containing 8.5% polystyrene (PS), 1.5% dioctyl phthalate (DOP) and 90.0% hexogen. 90 g of hexogen (average particle size approx. 100 pm) was slurried in 500 ml of water. 1.5 ml of oxazoline solution (15 g/l chlorothene) was added and the batch was heated to 90°C. A solution of 8.5 g PS and 1.5 g DOP in 50 g methyl ethyl ketone was added, and the solvent was distilled off. The batch was cooled, and the product was filtered off and dried. The result was an excellent granular PBX, which fully satisfied the military standard MIL-P 14999.
Eksempel 2 Example 2
Den følgende fremgangsmåte, som ligner den beskrevet i eksempel 1, ble benyttet for å fremstille PBXN-2, et PBX som inneholder 5,3% "Elvamid 8061" (et nylon) og 94,7% octogen. The following procedure, similar to that described in Example 1, was used to prepare PBXN-2, a PBX containing 5.3% "Elvamid 8061" (a nylon) and 94.7% octogen.
94,7 g octogen (midlere partikkeldiameter 50-100 pm) ble oppslemmet i 500 ml vann, og 1,5 ml oxazolinoppløsning ble tilsatt. Satsen ble oppvarmet til 90°C, på hvilket tidspunkt 5,3 g "Elvamid" oppløst i 50 ml methanol ble tilsatt, hvoretter blandingen ble oppvarmet til 95°C for å avdrive oppløs-ningsmidlet fullstendig. Etter kjøling, frafiltrering og tør-king ble det oppnådd et utmerket produkt med midlere partikkeldiameter 0,5-1,0 mm. 94.7 g of octogen (average particle diameter 50-100 pm) was slurried in 500 ml of water, and 1.5 ml of oxazoline solution was added. The batch was heated to 90°C, at which time 5.3 g of "Elvamide" dissolved in 50 ml of methanol was added, after which the mixture was heated to 95°C to drive off the solvent completely. After cooling, filtering off and drying, an excellent product with an average particle diameter of 0.5-1.0 mm was obtained.
Eksempel 3 Example 3
Fremgangsmåten ifølge eksempel 2 ble gjentatt, idet octogenet ble erstattet med 66% hexogen (midlere partik-kelstørrelse ca. 100 pm) og 25% aluminiumpuler, foruten at innholdet av "Elvamid" ble øket til 9%. Sluttproduktet ble oppnådd i form av granuler med midlere partikkeldiameter 0,5-1,0 mm, hvilket fullt ut tilfredsstilte kravene i henhold til Navord Syst. Command 0S11632A. The procedure according to example 2 was repeated, in that the octogen was replaced with 66% hexogen (average particle size approx. 100 pm) and 25% aluminum pools, except that the content of "Elvamid" was increased to 9%. The final product was obtained in the form of granules with an average particle diameter of 0.5-1.0 mm, which fully satisfied the requirements according to Navord Syst. Command 0S11632A.
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NO902036A NO167650C (en) | 1985-09-27 | 1990-05-08 | PROCEDURE FOR MANUFACTURING A PLASTIC BONDED EXPLOSION. |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE8504467A SE453184B (en) | 1985-09-27 | 1985-09-27 | Phlegmatisation of crystalline explosives and plastic explosive prodn. |
SE8504468A SE452761B (en) | 1985-09-27 | 1985-09-27 | Phlegmatisation of crystalline explosives and plastic explosive prodn. |
NO863824A NO165997C (en) | 1985-09-27 | 1986-09-25 | PHLEGATIZED, CRYSTALLIC OR PARTICULAR EXPLOSION AND PROCEDURE FOR AA FLEGATIZED CRYSTALLIN EXPLOSIVE SUBSTANCES. |
NO902036A NO167650C (en) | 1985-09-27 | 1990-05-08 | PROCEDURE FOR MANUFACTURING A PLASTIC BONDED EXPLOSION. |
Publications (4)
Publication Number | Publication Date |
---|---|
NO902036L NO902036L (en) | 1987-03-30 |
NO902036D0 NO902036D0 (en) | 1990-05-08 |
NO167650B true NO167650B (en) | 1991-08-19 |
NO167650C NO167650C (en) | 1991-11-27 |
Family
ID=27484140
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NO902036A NO167650C (en) | 1985-09-27 | 1990-05-08 | PROCEDURE FOR MANUFACTURING A PLASTIC BONDED EXPLOSION. |
Country Status (1)
Country | Link |
---|---|
NO (1) | NO167650C (en) |
-
1990
- 1990-05-08 NO NO902036A patent/NO167650C/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
NO167650C (en) | 1991-11-27 |
NO902036L (en) | 1987-03-30 |
NO902036D0 (en) | 1990-05-08 |
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