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Temperature-resistant and oil-resistant detonating tube and production method thereof

A nonel and oil-resistant technology, which is applied in the direction of hoses, pipes, mechanical equipment, etc., can solve the problems of immature resin raw material manufacturing technology and inability to meet the requirements of the use environment, and achieve good detonation transmission reliability, excellent mechanical properties, The effect of excellent temperature resistance and oil resistance

Inactive Publication Date: 2018-08-14
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 not yet mature, and cannot meet the increasingly complex and harsh environmental requirements.

Method used

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  • Temperature-resistant and oil-resistant detonating tube and production method thereof
  • Temperature-resistant and oil-resistant detonating tube and production method thereof
  • Temperature-resistant and oil-resistant detonating tube and production method thereof

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; i...

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 detonating tube. The detonating tube comprises an inner layer resin and an outer layer resin, wherein the inner layer resin comprises,by weight, 60-90 parts of low density polyethylene (LDPE), 10-40 parts of tackifying resin, 0.2-0.8 part of an antioxidant and 0.1-0.3 part of a lubricant; and the outer layer resin includes, by weight, 50-80 parts of high density polyethylene (HDPE), 20-50 parts of acrylate rubber, 10-40 parts of linear low density polyethylene (LLDPE), 10-20 parts of a compatibilizer, 1-2 parts of an inorganicnano-filler, 0.5-1 part of the antioxidant and 0.2-0.5 part of the lubricant, wherein the tackifying resin is a blend material of ethylene-acrylic acid (EAA) copolymer and Surlyn resin, and the Surlynresin is a sodium ion type polymer or a zinc ion type polymer; and the compatibilizer is an ethylene-vinyl acrylate copolymer. The invention also discloses a production method of the temperature-resistant and oil-resistant detonating tube. The detonating tube produced in the invention has a good detonation reliability under complicated and harsh 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 Applications(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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