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Novel energetic base material prepared from porous material and preparation method thereof

A technology of porous materials and substrates, which is applied in the field of new energetic substrates and their preparation, can solve the problems of damaged stamping afterburning chambers, improved reliability, and complex structures, so as to reduce speed loss, improve ballistic performance, and be economical. value effect

Inactive Publication Date: 2012-09-12
NANJING UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, the inlet outlet caps researched in China are mainly divided into two categories: throwable and non-thrownable, but both have shortcomings. For example, the throwable cap may damage the ram afterburning due to the large size of the projectile. The internal structure of the chamber and the ram nozzle; although the non-throwable plug has no throwing objects, the structure is complex and the reliability needs to be improved

Method used

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  • Novel energetic base material prepared from porous material and preparation method thereof
  • Novel energetic base material prepared from porous material and preparation method thereof
  • Novel energetic base material prepared from porous material and preparation method thereof

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preparation example Construction

[0018] Step 1, preparation of energetic medicament:

[0019] The preparation steps of SY are: add perchloric acid (the ratio is ethylenediamine: triethylenediamine: perchloric acid=5: 9.4:48), the reaction temperature is controlled at 62°C to 72°C, the stirring speed is adjusted to 400r / min±5r / min, after the reaction is complete, it is fully cooled and discharged.

[0020] NHN preparation steps are: feed ratio (mass ratio) is Ni(Ac) 2 4H 2 O:NaN 3 :N 2 h 4 ·H 2 O=1.76:1:0.8, when the temperature of the bottom liquid is 50°C, add sodium nitride and hydrazine hydrate in the way of double-pipe feeding, control the feeding time of sodium nitride to 30min±5min, and the feeding time of hydrazine hydrate to 45min±5min , Stir at constant temperature for 10 minutes after the feeding is completed, then water-cool to below 35°C and discharge.

[0021] Step 2, adding talcum powder and thermosetting phenolic resin to obtain a mixed agent: the particle diameter of the talcum powder i...

Embodiment 1

[0027]Embodiment 1: Porous copper (the specification is 40PPI, size is (20.1 ± 0.1) × (20.1 ± 0.1) × (10.0 ± 0.1) mm) is sealed with sealant on five sides, and the doping ratio is talcum powder: Phenolic resin: SY=15:20:65, weigh 1.5g of talcum powder, 2.0g of phenolic resin and 6.5g of SY in a dry state and mix thoroughly, weigh an appropriate amount of mixed agent and place it in a special charging mold, use frequency modulation vibration The charging method is used to fill the mixed medicament, the vibration frequency (voltage is 110V), the number of vibrations (2 times) and the time of each vibration (1min), the base material that has been charged is placed in a pressurized mold and a pressure of 8 MPa is applied. Place it at 120°C for heating for 25 minutes, and obtain an energetic substrate after complete cooling. The size of the obtained energetic substrate is (20.1±0.1)×(20.1±0.1)×(5.4±0.2) mm.

[0028] The measured performance parameters are shown in Table 1 below: ...

Embodiment 2

[0032] Embodiment 2: Porous copper (the specification is 60PPI, size is (20.1 ± 0.1) × (20.1 ± 0.1) × (10.0 ± 0.1) mm) is sealed with sealant on five sides, and the doping ratio is talcum powder: Phenolic resin: SY=21:20:59, weigh 2.1g of talcum powder, 2.0g of phenolic resin and 5.9g of SY in a dry state and mix thoroughly, weigh an appropriate amount of mixed agent and place it in a special charging mold, and use frequency modulation vibration The filling method is used to fill the mixed agent. The vibration frequency (voltage is 110V and 220V), the number of vibrations (2 times) and the time of each vibration (1min) are fixed. 12MPa pressure, and further heat treatment (heating temperature is controlled at 120°C, heating time is controlled at 20min), and the energetic substrate is obtained after complete cooling. The size of the obtained energetic substrate is (20.1±0.1)×(20.1±0.1)×(6.0±0.2) mm.

[0033] The measured performance parameters are shown in Table 2 below:

[0...

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Abstract

The invention provides a novel energetic base material prepared from a porous material and a preparation method thereof. The novel energetic base material and the preparation method thereof solve the problem that a closure material prepared in China at present has the defects of a large ejecta size, long action time and a complicated structure. The preparation method of the novel energetic base material comprises that an amine perchlorate eutectic compound (SY) or nickel hydrazine nitrate (NHN) as a reagent is added with additives and then the mixture is filled into porous ceramics or porous copper so that the novel energetic base material is obtained. The novel energetic base material obtained by the preparation method has excellent compressive properties, sealing properties and temperature resistance, can explode into fine fragments fast and reliably under the action of output energy from a miniature ignition / detonation device, and can be used as a closure material for a novel solid rocket ramjet air-intake duct.

Description

technical field [0001] The invention relates to a novel energetic substrate and a preparation method thereof, in particular to a novel energetic substrate prepared from a porous material and a preparation method thereof, belonging to the field of material preparation. Background technique [0002] The solid rocket ramjet is a main development direction of the supersonic missile power plant, which is a two-stage combined engine organically combined with ramjet and rocket technology. Among them, the transfer system plays a key role in connecting the booster stage to the stamping stage. The entire transfer process includes a series of actions such as booster nozzle throwing, gas generator working, and inlet blocking cover opening. After the booster stage work is over, the resistance acting on the projectile body will reduce the flight speed of the missile at a rate of about Mach 0.11. Only by completing the stage transfer process as soon as possible can the main engine relay w...

Claims

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Application Information

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IPC IPC(8): C06B29/22C06B31/00
Inventor 朱顺官张琳李燕牟景艳姜文欢
Owner NANJING UNIV OF SCI & TECH
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