Abstract:
The present invention provides a test warhead for detecting a real time impact pressure comprises: a plurality of pressure detection modules (20, 30, 40) provided with pressure detection sensors (3-1, 3-2, 3-3) and manufactured by using a complex gunpowder composition made of granular raw gunpowder, a polymer bonding agent, a plasticizer, and a catalyst, and a complex gunpowder composition simulant using an inactive granular material for ensuring the safety in an impact test or a production; a pressure measurement device (60) for processing pressure information detected in the sensors; and a warhead shell (50) where the pressure detection modules, forming solid solutions with the simulant, are positioned at the pressure detection positions respectively. The present invention can measure precisely the impact pressure transmitted to a main firing charge simulant when the test warhead penetrates through a robust structure, specifically can develop the main firing charge, namely high explosive gunpowder, with the impact resistance and the performance optimized according to operation conditions of penetrated explosives. [Reference numerals] (AA) Start;(S10) Manufacture a main gunpowder (High explosive gunpowder);(S11) Prepare an inactive granular material (Raw gunpowder);(S12) Prepare a polymer bonding agent and a plasticizer;(S13) Stir;(S14) Complete a slurry simulant;(S20) Manufacture a warhead module;(S21) Combine a frame for each shape with a sensor and a wire;(S22) Complete a first to a third warhead frame;(S30) Inject the slurry simulant into the warhead frame and cure the slurry simulant;(S40) Manufacture a pressure detection module and process a shape;(S50) Complete a first to a third detection module
Abstract:
본 발명은 고폭 화약의 성능 증대 및 물성 개선을 위하여 사용되는 에너지화 결합제로서 사용될 수 있는 신규한 물질 및 그 제조방법에 관한 것이다. 보다 상세하게, 본 발명은 에너지기로서 니트로기(-NO 2 )를 가지며 니트로기가 결합된 탄소에 결합하는 수소를 갖지 않는 화학식 IV로 표현되는 신규한 화합물 글리시딜 디니트로프로필 포름알(glycidyl dinitropropyl formal), 이를 단량체로 사용하여 중합된 화학식 V로 표현되는 신규한 화합물 폴리(글리시딜 디니트로프로필 포름알) 및 그 제조방법에 관한 것이다. [화학식 IV]
Abstract:
본 발명은 고성능 둔감 화약용 고에너지 결합제로 사용되는 에너지화 예비 중합체(prepolymer)의 합성에 관한 것으로, 더욱 상세하게는, 화학식 III으로 표현되는 신규한 화합물 2-니트레이토에틸 옥시란(2-nitratoethyl oxirane), 이를 단량체로 사용하여 중합되어 얻어지는 화학식 IV로 표현되는 신규한 화합물 폴리(2-니트레이토에틸 옥시란)[poly(2-nitratoethyl oxirane)] 및 그 제조방법에 관한 것이다. 본 발명의 화합물을 에너지화 예비중합체 및 이를 위한 단량체로서 사용함으로써, 지금까지의 에너지화 예비중합체 중에서 가장 성능이 뛰어나고 유망한 것으로 알려져 있으나 폴리우레탄 탄성체를 합성한 후 자기 분해되는 특성을 갖는 기존의 폴리(글리시딜 니트레이트)의 문제점을 해결할 수 있다. [화학식 III]
Abstract:
PURPOSE: Glycidyl dinitropropyl carbonate and poly(glycidyl dinitropropyl carbonate) are provided. Prepolymer having improved thermal stability is cheaply prepared by substituting a nitrate group by a nitro group as an energy group. CONSTITUTION: Glycidyl dinitropropyl carbonate represented by the formula(I) is provided. Poly(glycidyl dinitropropyl carbonate) represented by the formula(II) and having molecular weight of 2,000 to 3,500 is provided. A process for preparing the glycidyl dinitropropyl carbonate of the formula(I) comprises the steps of: dissolving 2,2-dinitropropanol in methylenechloride; adding pyridine into the mixture; adding allylchloroformate in methylene chloride to the mixture and reacting them; adding methylenechloride and distilled water into the mixture; dehydrating the methylenechloride extract with anhydrous magnesium sulfate; filtering the dehydrated solution to prepare allyl dinitropropyl carbonate; dissolving allyl dinitropropyl carbonate in methanol; adding hydrogen peroxide and NaOH into the mixture and reacting them; adding methylenechloride and distilled water into the mixture; dehydrating the methylenechloride extract with anhydrous magnesium sulfate; and filtering the dehydrated solution. A process for preparing the poly(glycidyl dinitropropyl carbonate) of the formula(II) comprises the steps of: mixing boron trifluoride etherate with 1,4-butanediol and removing ether under reduced pressure; dissolving the glycidyl dinitropropyl carbonate of the formula(I) in the boron trifluoride etherate solution; adding methylenechloride and distilled water into the mixture; dehydrating the mixture with anhydrous magnesium sulfate; adding ethanol into the dehydrated solution; and removing volatile compounds under reduced pressure.
Abstract:
PURPOSE: An energetic nitro-formal plasticizer for explosive formulations comprises eutectic mixture mixed with bis(2,2-dinitropropyl)formal(BDNPF), 2,2-dinitropropyl 2,2-dibutyl formal(DNPBF) and bis(2,2-dinitrobutyl)formal(BDNPF). The energetic nitro-formal plasticizer exhibits superior thermal/chemical properties with less production cost. CONSTITUTION: The molecular ratio of BDNPF/DNPBF/BDNPF in formulation of this plasticizer is in the range 20-68%/28-50%/4-30%. The plasticizer is allowed to contain diformal, however its content is desirable controlled to be not more than 3%. The preparation method of this plasticizer comprises the steps of (i) dissolving 2,2-dinitropropanol and 2,2-dinitrobutanol in the mole ratio of 3 to 6:1 at 0 to 30deg.C in an organic solvent like methylene chloride; (ii) at 20deg.C or lower, adding sulfuric acid solution in which formaldehyde sources such as paraformaldehyde and s-trioxane is dissolved; (iii) refining obtained mixture.