Wax composite insensitive agent with adjustable friction coefficient and preparation method thereof

A technology of friction coefficient and desensitizing agent, which is applied in the field of wax compound desensitizing agent and its preparation, can solve the problems of reducing the probability of hot spot transmission and hindering the transmission of heat, so as to reduce mechanical sensitivity, improve safety, and be economical and effective Effect

Pending Publication Date: 2018-08-28
BEIJING INSTITUTE OF TECHNOLOGYGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At the same time, the wax coating will also hinder the spread of heat, thereby reducing the probability of hot spot spread

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0019] According to the second aspect of the present invention, the present invention provides a kind of preparation method of above-mentioned wax compound desensitization agent with adjustable coefficient of friction, and this preparation method comprises the following steps:

[0020] 1) heating and melting the waxy substance;

[0021] 2) Add the functional auxiliary agent into the melted wax substance in step 1), stir and mix evenly to obtain the wax compound desensitizing agent.

[0022] In the present invention, the heating and melting of the waxy substance can be carried out using conventional containers and conditions in the art, as long as the waxy substance can be melted. Preferably, the wax substance is heated and melted in a wax-melting kettle, and the jacket temperature of the wax-melting kettle is 90-100°C.

[0023] Preferably, in step 2), the mixing conditions include: the stirring speed is 40-60 r / min, and the mixing time is 30-50 min.

Embodiment 1

[0029] This example is used to illustrate the wax compound desensitizer with adjustable friction coefficient and its preparation method of the present invention.

[0030] (1) Weigh 200 g of No. 80 microcrystalline wax, add it to a wax-melting kettle, heat and melt it, and the jacket temperature of the wax-melting kettle is 90-100°C.

[0031] (2) Weigh 30g of tungsten disulfide and add it to the melted microcrystalline wax, start stirring, the stirring speed is 45r / min, and the mixing time is 40min.

[0032] The composite desensitizing agent prepared in this embodiment is coated with HMX, and the coating amount of the composite desensitizing agent is 2.3% of the mass of HMX, and the mechanical sensitivity test is carried out. The results show that the impact sensitivity characteristics obtained by using the impact sensitivity test condition 1 test The drop height is 26% higher than that of the raw material, and the explosion percentage of the friction sensitivity obtained in th...

Embodiment 2

[0034] This example is used to illustrate the wax compound desensitizer with adjustable friction coefficient and its preparation method of the present invention.

[0035] (1) Weigh 200 g of No. 80 microcrystalline wax, add it to a wax-melting kettle, heat and melt it, and the jacket temperature of the wax-melting kettle is 90-100°C.

[0036] (2) Weigh 30g of molybdenum disulfide and add it to the melted microcrystalline wax, start stirring, the stirring speed is 50r / min, and the mixing time is 40min.

[0037] The composite desensitizing agent prepared in this embodiment is coated with RDX, and the coating amount of the composite desensitizing agent is 2.3% of the mass of RDX, and the mechanical sensitivity test is carried out. The results show that the impact sensitivity characteristics obtained by using the impact sensitivity test condition 1 test fall Compared with the raw material, it is 29.8% higher, and the explosion percentage of the friction sensitivity obtained by the ...

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Abstract

The invention belongs to the field of energetics, and particularly provides a wax composite insensitive agent with an adjustable friction coefficient and a preparation method thereof. The wax composite insensitive agent comprises wax materials and functional agents; the functional agents are selected from at least one of graphene, graphene oxide, nitrified graphene, fluoridized graphene, molybdenum disulfide, tungsten disulfide, graphene and carbon nanotube. The adjustable range of the friction coefficient of the wax composite insensitive agent is 0.03-0.25, the content of the composite insensitive agent only covers 1.5%-3% of the mass of energetic compounds such as RDX, HMX, CL-20, AP and the like, mechanical sensitivity of the energetic compounds can be significantly reduced, the safetyperformance of the energetic compounds can be greatly improved to further improve the content application safety performance of the energetic compounds in the energetic materials such as composite explosive, propellent and the like, and the preparation method is simple in process, economic and effective.

Description

technical field [0001] The invention belongs to the field of energetic materials, and in particular relates to a wax compound desensitizer with adjustable friction coefficient and a preparation method thereof. Background technique [0002] As high-energy components of energetic materials such as mixed explosives, propellants, and propellants, high-energy-density compounds are used in almost all strategic and tactical weapon systems to provide energy for launch, propulsion, and damage. Modern weapons place strict demands on the energy, safety and reliability of explosives. Obtaining a simple, high-efficiency desensitizer that can be produced in batches can improve the safety of high-energy explosives such as RDX, HMX, and CL-20, and their solid content in mixed explosives, which is of great significance to improving the safety and energy of weapon systems. Significance. [0003] Waxes have the characteristics of low melting point, high specific heat capacity, low thermal co...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C06B23/00C06B25/36
CPCC06B23/005C06B25/36
Inventor 郭学永焦清介张静元吴成成闫石李任然张洪垒赵佳辰
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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