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High-strength wear-resistant nonel tube and preparation method thereof

A detonating tube, high-strength technology, applied in blasting tubes, offensive equipment, weapon accessories, etc., can solve the problems of low impact blasting resistance of the tube wall, high cost of materials and equipment, immature manufacturing technology, etc., and achieve excellent anti-diameter Tensile properties, good shock resistance, and high powder viscosity

Inactive Publication Date: 2018-09-04
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, this type of detonating tube is limited by material factors, and its wall has low impact blasting resistance, low tensile strength, and is easy to wear
At home and abroad, the method of double-layer or multi-layer pipe wall composite is used to improve the strength and other performance of the detonator, but this manufacturing method is complicated in process, high in material and equipment costs, and the manufacturing technology is not yet mature.

Method used

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  • High-strength wear-resistant nonel tube and preparation method thereof
  • High-strength wear-resistant nonel tube and preparation method thereof
  • High-strength wear-resistant nonel tube and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] The high-strength wear-resistant nonel of the present embodiment includes the following components in parts by weight:

[0041] HDPE: 50 parts; EPDM: 20 parts, its vinyl content is 52% (weight), Mooney viscosity (ML(1+4), 125 ℃) 43MU; chlorosulfonated polyethylene rubber: 5 parts, its chlorine content is 32 % (weight), Mooney viscosity (ML(1+4), 100 ℃) at 44MU; tackifying resin: 30 parts, a blend material of EAA and EMA, the mixing weight ratio is 1:0.3, AA content in EAA It is 8.5% (weight), and the melt index is 9.7g / 10min, and the MA content is 7.8% (weight) in the EMA, and the melt index is 8.5g / 10min; Toughener: 10 parts, POE and m-LLDPE mixing weight ratio are 1:3; compatibilizer: 10 parts, AA grafting rate is 3.2% (weight); surface-activated rare earth nano additives: 0.1 part, is CeO2, the average particle size is 20nm; antioxidant: 1 part, antioxidant The weight ratio of agent 1010 to DLTP is 1:2; lubricant: 1 part, which is stearic acid.

[0042] According t...

Embodiment 2

[0052] The high-strength wear-resistant nonel of the present embodiment includes the following components in parts by weight:

[0053] HDPE: 40 parts; EPDM: 25 parts, its vinyl content is 52% (weight), Mooney viscosity (ML(1+4), 125 ℃) 43MU; chlorosulfonated polyethylene rubber: 5 parts, its chlorine content is 32 % (weight), Mooney viscosity (ML(1+4), 100 ℃) at 44MU; tackifying resin: 35 parts, a blend material of EAA and EMA, the mixing weight ratio is 1:0.3, AA content in EAA It is 8.5% (weight), and the melt index is 9.7g / 10min, and the MA content is 7.8% (weight) in the EMA, and the melt index is 8.5g / 10min; Toughener: 10 parts, POE and m-LLDPE mixing weight ratio are 1:3; compatibilizer: 10 parts, AA grafting rate is 3.2% (weight); surface-activated rare earth nano additives: 0.1 part, is CeO2, the average particle size is 20nm; antioxidant: 1 part, antioxidant The weight ratio of agent 1010 to DLTP is 1:2; lubricant: 1 part, which is stearic acid.

[0054] According t...

Embodiment 3

[0064] The high-strength wear-resistant nonel of the present embodiment includes the following components in parts by weight:

[0065] HDPE: 50 parts; EPDM: 20 parts, its vinyl content is 58% (weight), Mooney viscosity (ML(1+4), 125 ℃) 52MU; chlorosulfonated polyethylene rubber: 5 parts, its chlorine content is 32 % (weight), Mooney viscosity (ML(1+4), 100 ℃) at 44MU; tackifying resin: 30 parts, a blend material of EAA and EMA, the mixing weight ratio is 1:0.5, AA content in EAA It is 8.5% (weight), and the melt index is 9.7g / 10min, and the MA content is 7.8% (weight) in the EMA, and the melt index is 8.5g / 10min; Toughener: 10 parts, POE and m-LLDPE mixing weight ratio are 1:3; compatibilizer: 10 parts, AA grafting rate is 3.2% (weight); surface-activated rare earth nano additives: 0.1 part, is CeO2, the average particle size is 20nm; antioxidant: 1 part, antioxidant The weight ratio of agent 1010 to DLTP is 1:2; lubricant: 1 part, which is stearic acid.

[0066] According t...

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Abstract

The invention discloses a high-strength wear-resistant nonel tube. The nonel tube comprises, by weight, 30-60 parts of high-density polyethylene HDPE, 15-30 parts of EPDM, 5-10 parts of chlorosulfonated polyethylene rubber, 25-40 parts of a tackifier, 10-15 parts of a toughening agent, 10-15 parts of a compatibilizer, 0.1-1 part of a surface activation aid and 1-3 parts of additives. The tackifieris a mixture of an ethylene acrylic acid EAA copolymer and an ethylene methyl acrylate copolymer. The toughening agent is a mixture of a polyolefin elastomer POE and metallocene-catalyzed linear low-density polyethylene m-LLDPE. The compatibilizer is acrylic AA grafted linear low density polyethylene LLDPE-g-AA. The invention also discloses a preparation method of the high-strength wear-resistantnonel tube. The high-strength wear-resistant nonel tube has excellent anti-radial tensile performance, longitudinal tensile resistance, wear resistance, bending resistance and the tensile strength greater than 250N at the room temperature, and the tensile strength can reach to that of the general double-layer composite nonel tube.

Description

technical field [0001] The invention belongs to the technical field of plastic nonel, and in particular relates to a high-strength wear-resistant nonel 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. At present, the most common domestic production of nonel is the single-layer single-layer nonel manufacturing technology, which has the advantages of low cost, mature and stable technology, and the main raw material of the tube wall is low-density polyethylene. However, this type of detonating tube is limited by material factors, and its wall has low impact blasting resistance, low tensile strength, and is easy to wear. At home and abroad, the method of double-layer or multi-layer pipe wall composite is used to improve the strength and other performance of the detonator, but this manufacturing method is complicated in process, high in material and equipment costs,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/06C08L23/16C08L23/08C08L23/34C08L51/06C08K13/06C08K9/06C08K9/04C08K3/22F42B3/22
CPCC08K2003/2213C08K2201/003C08K2201/011C08L23/06C08L2203/18C08L2205/025C08L2205/035C08L2207/062F42B3/22C08L23/16C08L23/0869C08L23/0815C08L23/34C08L51/06C08K13/06C08K9/06C08K9/04C08K3/22
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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