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Irradiation cross-linked polyolefin cable material and preparation method thereof

A technology for cross-linking polyolefin and cable material, applied in the field of cable material manufacturing, can solve problems such as safety accidents and material performance differences, save maintenance costs, long service life, reduce extrusion torque, as well as host current and melting point. body effect

Inactive Publication Date: 2017-02-15
西安飞机工业(集团)亨通航空电子有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing cross-linked polyolefin materials have different properties due to their different uses. The cross-linked polyolefin materials that have been developed on the market for construction cables have a longer service life than ordinary materials, but they have not yet been developed. It can achieve the same lifespan as the building. During the entire life of the building, the cables still need to be replaced, and safety accidents will still occur when the replacement is not urgent.

Method used

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  • Irradiation cross-linked polyolefin cable material and preparation method thereof
  • Irradiation cross-linked polyolefin cable material and preparation method thereof
  • Irradiation cross-linked polyolefin cable material and preparation method thereof

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Effect test

Embodiment 1

[0029] The irradiation cross-linked polyolefin cable material of the present invention comprises the following components in parts by weight: 55 parts of ethylene-vinyl acetate copolymer; 18 parts of high-density polyethylene; 30 parts of magnesium hydroxide; 12 parts of red phosphorus; 12 parts of grade montmorillonite; 0.1 part of stearic acid; 2 parts of silicone; 0.4 part of antioxidant 1010; 0.4 part of antioxidant DLTP; 1 part of triallyl isocyanurate; 0.1 parts.

[0030] The preparation method of radiation crosslinked polyolefin cable material of the present invention, comprises the steps:

[0031] Step 1: Use a screening machine to filter red phosphorus and nano-level montmorillonite to remove large particles and impurities in the powder; place magnesium hydroxide and stearic acid in a desiccator for 24 hours to remove or reduce the moisture; Add the ethylene-vinyl acetate copolymer to the dryer, and dry it at a constant temperature of 70°C for 4 hours.

[0032] Step...

Embodiment 2

[0039] The radiation cross-linked polyolefin cable material of the present invention comprises the following components in parts by weight: 65 parts of ethylene-vinyl acetate copolymer; 25 parts of high-density polyethylene; 50 parts of magnesium hydroxide; 16 parts of red phosphorus; 18 parts of grade montmorillonite; 2 parts of stearic acid; 5 parts of silicone; 6 parts of antioxidant 1010; 6 parts of antioxidant DLTP; 10 parts of triallyl isocyanurate; 1 serving.

[0040] The preparation method of radiation crosslinked polyolefin cable material of the present invention, comprises the steps:

[0041] Step 1: Use a screening machine to filter red phosphorus and nano-level montmorillonite to remove large particles and impurities in the powder; place magnesium hydroxide and stearic acid in a desiccator for 24 hours to remove or reduce the moisture; Add the ethylene-vinyl acetate copolymer to the dryer, and dry it at a constant temperature of 80°C for 4 hours.

[0042] Step 2:...

Embodiment 3

[0049] The radiation cross-linked polyolefin cable material of the present invention comprises the following components in parts by weight: 60 parts of ethylene-vinyl acetate copolymer; 22 parts of high-density polyethylene; 40 parts of magnesium hydroxide; 15 parts of red phosphorus; 16 parts of grade montmorillonite; 1 part of stearic acid; 3 parts of silicone; 4 parts of antioxidant 1010; 4 parts of antioxidant DLTP; 6 parts of triallyl isocyanurate; 0.5 parts.

[0050] The preparation method of radiation crosslinked polyolefin cable material of the present invention, comprises the steps:

[0051] Step 1: Use a screening machine to filter red phosphorus and nano-level montmorillonite to remove large particles and impurities in the powder; place magnesium hydroxide and stearic acid in a desiccator for 24 hours to remove or reduce the moisture; Add the ethylene-vinyl acetate copolymer to the dryer, and dry it at a constant temperature of 75°C for 4 hours.

[0052] Step 2: P...

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Abstract

Belonging to the technical field of cable material manufacturing, the invention in particular relates to an irradiation cross-linked polyolefin cable material and a preparation method thereof. The irradiation cross-linked polyolefin cable material comprises the following components by weight: 55-65 parts of an ethylene-vinyl acetate copolymer; 18-25 parts of high density polyethylene; 30-50 parts of magnesium hydroxide; 12-16 parts of red phosphorus; 12-18 parts of nano montmorillonite; 0.1-2 parts of stearic acid; 2-5 parts of silicone; 0.4-6 parts of an antioxidant 1010; 0.4-6 parts of an antioxidant DLTP; 1-10 parts of triallyl isocyanurate; and 0.1-1 part of di-tert-butyl peroxide. The invention also discloses a preparation method of the irradiation cross-linked polyolefin cable material. After being extruded in a conductive wire core, the irradiation cross-linked polyolefin obtained according to the components, weight parts and manufacturing method has the characteristics of excellent aging performance, long service life, better mechanical and physical properties, and higher safety coefficient, etc.

Description

technical field [0001] The invention belongs to the technical field of cable material production, and in particular relates to a radiation crosslinked polyolefin cable material and a preparation method thereof. Background technique [0002] As a building product, housing has problems of service life and lifespan. According to the "General Rules for Civil Building Design" issued by the Ministry of Construction, the design service life of ordinary buildings and structures is generally 50 years. Calculated from the date of completion and acceptance, 50 years is generally the life span of ordinary houses. At present, the wires and cables used in buildings have a service life of 25 to 30 years, which is only about half of the service life of houses. In China, accidents caused by cables that have not been replaced for a long time or not replaced in time are not uncommon. The main cause of the accidents is the short circuit caused by the aging of the cables. Among the effective me...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/08C08L23/06C08L83/04C08K13/06C08K9/04C08K3/22C08K3/02C08K3/34C08K5/09C08K5/134C08K5/14C08K5/3492H01B3/44
CPCC08L23/0853C08L2201/02C08L2201/08C08L2203/202C08L2312/06H01B3/441C08L23/06C08L83/04C08K13/06C08K9/04C08K2003/2224C08K2003/026C08K3/346C08K5/09C08K5/1345C08K5/14C08K5/34924
Inventor 任金玲王允东罗长春其他发明人请求不公开姓名
Owner 西安飞机工业(集团)亨通航空电子有限公司
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