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Method for representing interfacial force between explosive and bonding agent

A technology of adhesive and force, which is applied in the field of interface mechanical properties of explosive components, can solve the problems of difficult particle probe technology and few applications, and achieve the effects of strong practicability, simple process and easy operation

Inactive Publication Date: 2017-06-13
INST OF CHEM MATERIAL CHINA ACADEMY OF ENG PHYSICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, due to the technical difficulty in the preparation of particle probes, there are few applications, and there are no relevant reports on the interface mechanical properties of explosive-related substances.

Method used

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  • Method for representing interfacial force between explosive and bonding agent
  • Method for representing interfacial force between explosive and bonding agent
  • Method for representing interfacial force between explosive and bonding agent

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] (1) Drop the UV curable glue on the glass slide A and place it in the field of view of the optical microscope; install the unmodified needle-free AFM probe in the probe groove on the probe holder, and fix it with a spring piece, The position of the probe is controlled by a four-axis displacement controller and moved to the top of the cured glue, and then gradually approached, so that a small amount of UV cured glue is dipped on the tip of the AFM probe microcantilever.

[0042] (2) Disperse the HMX explosive crystal particles with an average particle size of about 20 μm on the glass slide B and place them in the field of view of the optical microscope; move the probe dipped in cured glue to the top of the explosive particles through a four-axis displacement controller , and then gradually approach the explosive particles, stick the explosive particles on the tip of the AFM probe microcantilever through the curing glue, and then irradiate with ultraviolet light for 15 min...

Embodiment 2

[0046] The method is the same as in Example 1, except that the binder used in step 3 is polyurethane.

Embodiment 3

[0048] The method is the same as in Example 1, except that the binder used in step 3 is paraffin.

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Abstract

The invention discloses a method for representing an interfacial force between explosive and bonding agent. The method comprises the following steps of modifying the tip end of an AFM probe micro-cantilever by explosive particles through a binding medium, or directly modifying the tip end of the AFM probe micro-cantilever by adhesive, thereby obtaining a modified probe; applying the adhesive on a flat substrate, or fixing the explosive particles on the flat substrate; by means of a force spectrum scanning mode of an atomic force microscope, performing force curve representation by means of the modified probe on the surface of the bonding agent or explosive particles; and extracting a corresponding bonding force parameter according to a force curve, thereby obtaining the interfacial force between the explosive and the bonding agent. The method realizes direct and quantitative representation of the interfacial force between explosive and components of the bonding agent, thereby realizing a new facility for mechanical characteristic research of a crystal / adhesive interface in PBX explosive.

Description

technical field [0001] The invention belongs to the field of interface mechanical properties of explosive components, and relates to a method for characterizing the interface force between explosives and binders. The method is based on atomic force microscopy technology. Background technique [0002] Polymer bonded explosive (Polymer Bonded Explosive, PBX) is a kind of high-filling composite material with high molecular polymer as the continuous phase and high-energy explosive crystal as the dispersed phase. It is an important special functional material and structural component in weapon systems. It is widely used in high-performance conventional weapon warheads and detonation transmission systems and main charges of advanced weapons. [0003] The interface is a two-dimensional region where the physical and chemical properties of materials undergo spatial mutations, and is a unique and important part of composite materials. The particularity of the components of PBX explos...

Claims

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Application Information

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IPC IPC(8): G01Q60/28G01Q60/42
CPCG01Q60/28G01Q60/42
Inventor 徐金江刘渝孙杰程克梅张浩斌睢贺良刘晓峰
Owner INST OF CHEM MATERIAL CHINA ACADEMY OF ENG PHYSICS
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