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A kind of explosive adhesive tape and preparation method thereof

A technology for explosives and tapes, which is applied in explosives processing equipment, explosives, non-explosive fillers/gelling agents/thickeners, etc., can solve the problems of low strength and poor adhesion of flexible explosives, and achieve high tensile strength, The effect of good explosion effect and high mechanical strength

Active Publication Date: 2021-10-01
ZHONGBEI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a kind of explosive tape and its preparation method in order to solve the problems of poor adhesion and low strength of existing flexible explosives

Method used

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  • A kind of explosive adhesive tape and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] An explosive adhesive tape is composed of pressure-sensitive adhesive 1, flexible explosive 2, flexible polymer adhesive layer 3 and base material 4 from top to bottom, and its structure is as follows figure 1 shown. The pressure-sensitive adhesive 1 is water-based polyurethane pressure-sensitive adhesive with a thickness of 25 μm; the flexible explosive 2 is composed of an energetic material and a polymer bonding material, and its thickness is 1.0 mm, wherein the energetic material consists of 60 parts by weight of simple black It is made by mixing Suojin explosives and 40 parts by weight of HMX, and the polymer bonding material is made by mixing 95 parts by weight of natural rubber emulsion and 5 parts by weight of plasticizer DOP; the flexible polymer bonding layer 3 adopts Polyurethane has a thickness of 15 μm; the base material 4 is a BOPP film with a thickness of 28 μm.

[0018] The preparation method of the above-mentioned explosive adhesive tape comprises the f...

Embodiment 2

[0021] An explosive adhesive tape is composed of pressure-sensitive adhesive 1, flexible explosive 2, flexible polymer adhesive layer 3 and base material 4 from top to bottom, and its structure is as follows figure 1 shown. The pressure-sensitive adhesive 1 is water-based polyurethane pressure-sensitive adhesive with a thickness of 45 μm; the flexible explosive 2 is composed of an energetic material and a polymer bonding material, and its thickness is 1.2 mm, wherein the energetic material consists of 80 parts by weight of simple black It is made by mixing Suojin explosives and 20 parts by weight of CL-20. The polymer bonding material is made by mixing 98 parts by weight of natural rubber emulsion and 2 parts by weight of plasticizer DOP; flexible polymer bonding 3 layers Polyurethane is used with a thickness of 25 μm; the base material 4 is a BOPP film with a thickness of 28 μm.

[0022] The preparation method of the above-mentioned explosive adhesive tape comprises the foll...

Embodiment 3

[0025] An explosive adhesive tape is composed of pressure-sensitive adhesive 1, flexible explosive 2, flexible polymer adhesive layer 3 and base material 4 from top to bottom, and its structure is as follows figure 1 shown. The pressure-sensitive adhesive 1 is water-based polyurethane pressure-sensitive adhesive with a thickness of 50 μm; the flexible explosive 2 is composed of an energetic material and a polymer bonding material, and its thickness is 1.2 mm. Among them, the energetic material is composed of 80 parts by weight of simple black It is made by mixing Suojin explosives and 20 parts by weight of CL-20. The polymer bonding material is made by mixing 98 parts by weight of natural rubber emulsion and 2 parts by weight of plasticizer DOP; the flexible polymer bonding layer 3 A VAE copolymer emulsion is used with a thickness of 30 μm; the base material 4 is a BOPP film with a thickness of 28 μm.

[0026]The preparation method of the above-mentioned explosive adhesive ta...

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Abstract

The invention is an explosive adhesive tape and a preparation method thereof, which solves the problems of poor adhesion and low strength of existing flexible explosives. The explosive adhesive tape of the present invention is made up of top-down pressure-sensitive adhesive, flexible explosive, flexible macromolecule bonding layer and base material; During preparation, earlier evenly coat flexible polymer bonding layer on flexible explosive lower surface, then Then, the flexible polymer bonding layer is combined with the base material, and finally the pressure-sensitive adhesive is evenly coated on the upper surface of the flexible explosive. The explosive adhesive tape of the present invention has the advantages of strong adhesion, high tensile strength, good explosive effect, convenient use and operation, simple process, etc., and has important application value in special blasting fields such as eliminating welding stress by explosion.

Description

technical field [0001] The invention relates to the technical field of explosive structure and preparation, in particular to an explosive adhesive tape and a preparation method thereof. Background technique [0002] Explosive processing of metal refers to the processing technology of using explosives as energy to shape metal blanks, surface hardening, and blasting to eliminate welding residual stress. With the development of production and the advancement of science and technology, new technologies and processes for various processing of metals using explosives, a huge and cheap energy source, continue to emerge. For example, explosive welding to eliminate residual stress is a new technology developed in the past 30 years. Appropriate explosives are used to detonate in the welding area in an appropriate way, and the energy of the explosion shock wave is used to make the metal in the residual stress area deformed, thereby achieving elimination. Or a process to reduce residua...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C06B25/34C06B21/00C06B23/00C06B45/00C09J7/29
CPCC06B21/00C06B23/001C06B25/34C06B45/00C09J2407/00C09J2423/106C09J7/29
Inventor 李如江周鹏飞刘晓红高永宏张晋红刘天生
Owner ZHONGBEI UNIV
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