Oil penetration-preventing polymer-bonded explosive containing paraffin microcapsules and preparation method of explosive

A technology of paraffin microcapsules and bonded explosives is applied in the directions of explosives, ammonium perchlorate compositions, non-explosive/non-thermal agent components, etc., and can solve the problems of hindering the development of insensitive explosives, poor compatibility, uneven distribution, etc., To achieve the effect of reducing oil leakage, reducing shock wave sensitivity and improving mechanical properties

Active Publication Date: 2017-02-01
INST OF CHEM MATERIAL CHINA ACADEMY OF ENG PHYSICS +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The high-efficiency desensitization of paraffin and the poor compatibility with the explosive system, uneven distribution, high-temperature oi

Method used

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  • Oil penetration-preventing polymer-bonded explosive containing paraffin microcapsules and preparation method of explosive
  • Oil penetration-preventing polymer-bonded explosive containing paraffin microcapsules and preparation method of explosive
  • Oil penetration-preventing polymer-bonded explosive containing paraffin microcapsules and preparation method of explosive

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Take by weighing 30g RDX, 10gAl, 5g ammonium perchlorate, 8g hydroxyl-terminated polybutadiene, 2g paraffin (fusing point is 50°C), 3g of paraffin microcapsules with melamine resin as the capsule wall, these materials are added to the pre-prepared Heat it into a kneader at 70°C, stir for 25 minutes, mix well, add 0.5g of TDI, mix and react for 12 minutes, pour it into a mold that has been preheated to 70°C at a constant temperature of 70°C, and put it in a vacuum oven at 60°C , Reaction 3d, take out and cool to room temperature to obtain the product.

Embodiment 2

[0032] Take by weighing 50g HMX, 20gAl, 30g ammonium perchlorate, 15g hydroxyl-terminated polybutadiene, take polystyrene as the paraffin microcapsule 5g of capsule wall, these materials join in the kneader that has been preheated to 80 ℃, Stir for 30 minutes, after mixing evenly, add 1g of TDI, mix and react for 30 minutes, pour it into a mold preheated to 70°C at a constant temperature of 80°C, put it in a vacuum oven at 80°C, react for 5 days, take it out and cool it to room temperature to obtain the product .

Embodiment 3

[0034] Get 90g RDX, 35gAl, 20g ammonium perchlorate, 20g hydroxyl-terminated polybutadiene, 5g paraffin (fusing point is 50 DEG C), take melamine resin as the paraffin microcapsule 0.5g of capsule wall, these materials are added to pre-prepared Heat it into a kneader at 65°C, stir for 25 minutes, mix well, add 0.8g of TDI, mix and react for 25 minutes, pour it into a mold that has been preheated to 65°C at a constant temperature of 65°C, and put it in a vacuum oven at 65°C , Reaction 7d, take out and cool to room temperature to obtain the product.

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Abstract

The invention discloses an oil penetration-preventing polymer-bonded explosive containing paraffin microcapsules and a preparation method of the explosive. The explosive is prepared from, by mass, 30-90 parts of an explosive, 0-45 parts of metal, 0-35 parts of ammonium perchlorate, 8-20 parts of a bonding agent, 0-5 parts of paraffin, 0.1-5 parts of the paraffin microcapsules and 0-1 part of a curing agent. The method comprises the following steps that batching is conducted; the materials are put in a kneader to be mixed; the mixed materials are poured into a mold, and the mold is put in an oven for curing the materials. According to the oil penetration-preventing PBX explosive containing the paraffin microcapsules, the oil penetration performance is reduced by 60%-70%, the mechanical properties such as the tensile and compressive strength, the strain rate and the elasticity modulus are all improved, and the shock wave sensitivity is reduced.

Description

technical field [0001] The invention relates to the field of insensitive high-energy explosives, in particular to a paraffin microcapsule anti-seepage oil polymer bonded explosive and a preparation method thereof. Background technique [0002] High-energy explosives are currently a research hotspot in various countries. Due to the essential contradiction between safety and detonation energy, efficient desensitization technology for high-energy explosives has become a worldwide problem. Over the years people have carried out various attempts to solve the desensitization problem of explosives. Studies have shown that the molecular structure, crystal quality, and particle size of explosives have a direct impact on the safety of explosives. Synthesizing single explosive molecules with good stability, improving crystal quality and particle sphericity, and reducing particle size all help to improve the safety of explosives. Safety performance; Another way to improve the safety p...

Claims

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Application Information

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IPC IPC(8): C06B29/22C06B23/00
CPCC06B23/005C06B23/009C06B29/22
Inventor 赵天波丁洪晶罗观郑保辉王丽丽李洋黄辉
Owner INST OF CHEM MATERIAL CHINA ACADEMY OF ENG PHYSICS
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