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High-efficiency low-radiation dose irradiation crosslinking polyethylene insulation material and preparation method thereof

A technology of cross-linked polyethylene and insulating materials, applied in organic insulators, plastic/resin/wax insulators, etc., can solve the problems of wasting energy consumption, increasing costs for manufacturers, consuming time, manpower, and financial resources, and reducing manufacturing costs. , the effect of reducing energy consumption

Inactive Publication Date: 2013-01-30
SHANGHAI KAIBO SPECIAL CABLE FACTORY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, most irradiation cross-linked polyethylene insulating materials on the market need to greatly increase the radiation dose during the irradiation process, such as using a radiation dose of more than 20 Mard, or even a second irradiation to achieve a better cross-linking effect, which not only wastes energy , and consume more time, manpower and financial resources, and increase a lot of cost to the manufacturer

Method used

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  • High-efficiency low-radiation dose irradiation crosslinking polyethylene insulation material and preparation method thereof
  • High-efficiency low-radiation dose irradiation crosslinking polyethylene insulation material and preparation method thereof
  • High-efficiency low-radiation dose irradiation crosslinking polyethylene insulation material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1～ Embodiment 4

[0025] A method for preparing an irradiation cross-linked polyethylene insulating material with high efficiency and low radiation dose, the method comprises the following steps:

[0026] (1) according to the component listed in the embodiment in table 1 and content batching;

[0027] (2) Put the above raw materials into a high-speed mixer and mix at high speed (1500-3000rpm) for about 1-3 minutes;

[0028] (3) Low-speed (500-1000rpm) discharge;

[0029] (4) Put the mixed raw materials into a twin-screw machine to extrude and granulate. The speed of the extruder is controlled at 180-600 rpm, and the temperature is set as: feeding section 145-155°C, mixing section 155-165°C, extrusion material section 160-165°C, flange part 165-175°C , head part 175-185 ℃, made of high-efficiency and low radiation dose of radiation cross-linked polyethylene insulating material.

[0030] The formula table (unit: parts by weight) of the embodiment 1~4 of table 1

[0031] raw material ...

Embodiment 5-6

[0038] The formula table (unit: parts by weight) of table 3 embodiment 5~6

[0039]

[0040]

[0041] The high-efficiency and low-radiation dose irradiated cross-linked polyethylene insulating materials prepared in Examples 5, 6 and Comparative Example were subjected to performance tests after irradiation, and the results are shown in Table 4.

[0042] Table 4 Performance of irradiated cross-linked polyethylene insulating material with high efficiency and low radiation dose

[0043] Test items

[0044] The test samples of the above-mentioned examples 5 and 6 were all irradiated with a radiation dose of 10-15Mard once to form, and the test samples of the comparative example were formed with a radiation dose of 25Mard once. It can be seen from the performance testing results that after the test sample prepared by the present invention is irradiated with a low radiation dose, all properties can meet the standard requirements, which is a good way to reduce energy ...

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Abstract

The invention relates to a high-efficiency low-radiation dose irradiation crosslinking polyethylene insulation material and a preparation method thereof. The high-efficiency low-radiation dose irradiation crosslinking polyethylene insulation material provided in the invention comprises the following raw materials by weight: 60-80 parts of polyethylene resin; 8-20 parts of polyolefin resin; 10-25 parts of a compatibilizer; 0.5-3 parts of a cross-linking sensitizer; 0.5-2 parts of an antioxidant; and 0.2-1 part of a lubricant. The invention further discloses a preparation method of the insulation material. Compared with the prior art, the irradiation crosslinking polyethylene insulation material prepared by the invention can reach an ideal crosslinking effect at a low radiation dose, thus saving energy consumption.

Description

technical field [0001] The invention relates to the technical field of polymer materials, in particular to a radiation cross-linked polyethylene insulating material with high efficiency and low radiation dose and a preparation method thereof. Background technique [0002] Cross-linking technology is an important technology to improve the performance of polyethylene. The performance of polyethylene modified by cross-linking can be greatly improved, not only significantly improving the comprehensive properties of polyethylene, such as mechanical properties, environmental stress cracking resistance, chemical corrosion resistance, creep resistance and electrical properties. , and very significantly improved the temperature resistance level, which can increase the heat resistance temperature of polyethylene from 70 ° C to more than 100 ° C, thus greatly broadening its application range. At present, cross-linked polyethylene has been widely used in cable materials, and is used in...

Claims

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Application Information

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IPC IPC(8): C08L23/06C08L23/00C08L23/08C08L51/06C08K5/3492H01B3/44B29B9/06B29C47/92B29C48/92
CPCB29C48/04B29C48/40B29C48/875B29C48/92B29C2948/92704B29C2948/92895
Inventor 胡玲
Owner SHANGHAI KAIBO SPECIAL CABLE FACTORY
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