A temperature-resistant and oil-resistant detonator and its preparation method

A detonating tube and oil-resistant technology, which is applied to pipes, hoses, mechanical equipment, etc., can solve the problems that cannot meet the requirements of the use environment and immature resin raw material manufacturing technology, and achieve good detonation transmission reliability, excellent mechanical properties, The effect of improving the adhesion ability

Inactive Publication Date: 2021-04-06
上海赛曦新材料科技有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the resin raw materials and manufacturing technology used in this method are still immature and cannot meet the increasingly complex and demanding use environment requirements.

Method used

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  • A temperature-resistant and oil-resistant detonator and its preparation method
  • A temperature-resistant and oil-resistant detonator and its preparation method
  • A temperature-resistant and oil-resistant detonator and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] The special resin for the inner layer of the temperature-resistant and oil-resistant detonator of this embodiment includes the following components in parts by weight:

[0047] Low-density polyethylene: 70 parts; tackifying resin: 30 parts; antioxidant: 0.5 parts; lubricant: 0.2 parts. Wherein, the mixing weight ratio of EAA and Surlyn resin in tackifying resin is 7:3, and the AA content of EAA is 8.5% (weight), and melt index is 7.0g / 10min; Surlyn resin is sodium ion polymer, and melt index is 5.5g / 10min. The antioxidant is a compound of antioxidant 1010 and dilauryl alcohol ester, and the weight ratio of the two is 1:1. The lubricant is zinc stearate.

[0048] The special resin for the outer layer of the temperature-resistant and oil-resistant detonator of this embodiment includes the following components in parts by weight:

[0049] High-density polyethylene: 70 parts; acrylate rubber: 30 parts; linear low-density polyethylene: 30 parts; compatibilizer: 10 parts; in...

Embodiment 2

[0062] The special resin for the inner layer of the temperature-resistant and oil-resistant detonator of this embodiment includes the following components in parts by weight:

[0063] Low-density polyethylene: 70 parts; tackifying resin: 30 parts; antioxidant: 0.5 parts; lubricant: 0.2 parts. Wherein, the mixing weight ratio of EAA and Surlyn resin in tackifying resin is 8:2, and the AA content of EAA is 9.7% (weight), and melt index is 11.0g / 10min; Surlyn resin is a sodium ion polymer, and melt index is 5.5g / 10min. The antioxidant is a compound of antioxidant 1010 and dilauryl alcohol ester, and the weight ratio of the two is 1:2. The lubricant is zinc stearate.

[0064] The special resin for the outer layer of the temperature-resistant and oil-resistant detonator of this embodiment includes the following components in parts by weight:

[0065] High-density polyethylene: 60 parts; acrylate rubber: 40 parts; linear low-density polyethylene: 20 parts; compatibilizer: 10 part...

Embodiment 3

[0078] The special resin for the inner layer of the temperature-resistant and oil-resistant detonator of this embodiment includes the following components in parts by weight:

[0079] Low-density polyethylene: 80 parts; tackifying resin: 20 parts; antioxidant: 0.5 parts; lubricant: 0.2 parts. Wherein, the mixing weight ratio of EAA and Surlyn resin in tackifying resin is 8:2, and the AA content of EAA is 8.5% (weight), and melt index is 7.0g / 10min; Surlyn resin is sodium ion polymer, and melt index is 7.8g / 10min. The antioxidant is a compound of antioxidant 1010 and dilauryl alcohol ester, and the weight ratio of the two is 1:1. The lubricant is zinc stearate.

[0080] The special resin for the outer layer of the temperature-resistant and oil-resistant detonator of this embodiment includes the following components in parts by weight:

[0081] High-density polyethylene: 70 parts; acrylate rubber: 30 parts; linear low-density polyethylene: 30 parts; compatibilizer: 10 parts; ...

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Abstract

The invention discloses a temperature-resistant and oil-resistant detonator, which includes an inner layer resin and an outer layer resin; wherein, the inner layer resin includes the following components by weight: low-density polyethylene LDPE: 60-90 parts; Adhesive resin: 10-40 parts; antioxidant: 0.2-0.8 parts; lubricant: 0.1-0.3 parts; the outer layer resin includes the following components by weight: high-density polyethylene HDPE: 50-80 parts; acrylic acid Ester rubber: 20-50 parts; linear low-density polyethylene LLDPE: 10-40 parts; compatibilizer: 10-20 parts; inorganic nanofiller: 1-2 parts; antioxidant: 0.5-1 parts; lubricant: 0.2-0.5 part; Wherein, described tackifier is the blending material of ethylene-acrylic acid EAA copolymer and Surlyn resin, and Surlyn resin is sodium ionic polymer or zinc ionic polymer; Described compatibilizer is ethylene- Acrylic copolymer. The invention also discloses a preparation method of a temperature-resistant and oil-resistant detonator. The nonel prepared by the invention has good detonation transfer reliability under complex and severe environmental conditions, and has excellent temperature resistance and oil resistance.

Description

technical field [0001] The invention belongs to the technical field of plastic detonators, and in particular relates to a temperature-resistant and oil-resistant detonator and a preparation method thereof. Background technique [0002] The nonel is a hollow plastic hose coated with a very thin layer of explosive powder on the inside. The detonating tube is detonated after being subjected to a certain intensity of external excitation impulse, and a detonation wave is generated in the tube, which propagates stably in the tube at a speed of 2000m / s. It must be used in conjunction with a detonator in blasting engineering to achieve long-distance detonation. [0003] At present, the main material of domestically produced detonators is low-density polyethylene (LDPE), which is mainly used for ordinary single-layer detonators that are most commonly produced and used in China, but this type of detonators has low tensile strength and high temperature resistance. Poor performance and...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/06C08L33/04C08L23/08C08K13/02C08K3/26C08K3/36C08K5/09C08K5/098C08K5/101F16L11/04
CPCC08K2003/265C08K2201/011C08L23/06C08L2201/08C08L2203/18C08L2205/025C08L2205/035C08L2207/062C08L2207/066F16L11/04C08L23/0869C08K5/098C08K5/09C08K5/101C08L33/04C08L23/0815C08K13/02C08K3/26C08K3/36
Inventor 王飚马科淼张立新
Owner 上海赛曦新材料科技有限公司
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