Irradiation crosslinking polyolefin cable material and preparation method thereof

A cross-linked polyolefin and cable material technology, which is applied in the field of cable material manufacturing, can solve problems such as safety accidents and large differences in material properties, and achieve the effects of saving maintenance costs, long service life, and improving oxygen index

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

Method used

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  • Irradiation crosslinking polyolefin cable material and preparation method thereof
  • Irradiation crosslinking polyolefin cable material and preparation method thereof
  • Irradiation crosslinking polyolefin cable material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0029] Example 1:

[0030] The radiation crosslinked polyolefin cable material of the present invention contains 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; Grade montmorillonite 12 parts; stearic acid 0.15 parts; silicone 1.5 parts; antioxidant 1010 0.4 parts; antioxidant DLTP 0.5 part; triallyl isocyanurate 1 part; di-tert-butyl peroxide 物0.1 parts.

[0031] The preparation method of the radiation crosslinked polyolefin cable material of the present invention includes the following steps:

[0032] Step 1: Use a screening machine to filter red phosphorus and nano-grade 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; The ethylene-vinyl acetate copolymer was added to the dryer and dried at a constant temperature...

Example Embodiment

[0039] Example 2:

[0040] The radiation crosslinked polyolefin cable material of the present invention contains 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; 2.5 parts of stearic acid; 4.5 parts of silicone; 1010 6 parts of antioxidant; 6 parts of antioxidant DLTP; 10 parts of triallyl isocyanurate; di-tert-butyl peroxide 物1 serving.

[0041] The preparation method of the radiation crosslinked polyolefin cable material of the present invention includes the following steps:

[0042] Step 1: Use a screening machine to filter red phosphorus and nano-grade 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 ...

Example Embodiment

[0049] Example 3:

[0050] The radiation crosslinked polyolefin cable material of the present invention contains the following components in parts by weight: 62 parts of ethylene-vinyl acetate copolymer; 23 parts of high-density polyethylene; 45 parts of magnesium hydroxide; 13 parts of red phosphorus; Grade montmorillonite 14 parts; stearic acid 2 parts; silicone 4 parts; antioxidant 10103 parts; antioxidant DLTP 5 parts; triallyl isocyanurate 8 parts; di-tert-butyl peroxide 物0.6Parts.

[0051] The preparation method of the radiation crosslinked polyolefin cable material of the present invention includes the following steps:

[0052] Step 1: Use a screening machine to filter red phosphorus and nano-grade 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...

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Abstract

The invention belongs to the technical field of cable material manufacturing, and in particular relates to an irradiation crosslinking polyolefin cable material and a preparation method thereof. The irradiation crosslinking polyolefin cable material comprises the following components in parts 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-grade montmorillonoid, 0.15-2.5 parts of stearic acid, 1.5-4.5 parts of silicone, 0.4-6 parts of an antioxidant 1010, 0.5-6 parts of an antioxidant DLTP, 1-10 parts of triallyl isocyanurate and 0.1-1 part of a ditert-butyl peroxide. The invention further discloses a preparation method of the irradiation crosslinking polyolefin cable material. After being used on a conductive cable core in an extrusion and sleeving manner, irradiation crosslinking polyolefin prepared from the material components in parts by weight by using the preparation method has the characteristics of being very good in aging resistance, super long in service life, relatively good in mechanical physical property, relatively high in security coefficient and the like.

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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IPC IPC(8): C08L23/08C08L23/06C08L83/04C08K13/06C08K9/04C08K3/22C08K5/3492C08K5/14C08K5/134C08K5/372H01B3/44
CPCC08L23/0853C08K2201/011C08L2201/02C08L2201/08C08L2203/202C08L2205/03C08L2207/062C08L2312/06H01B3/441C08L23/06C08L83/04C08K13/06C08K9/04C08K2003/2224C08K5/34924C08K5/14C08K5/1345C08K5/372
Inventor 赵凯斌罗长春任金玲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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