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PVC-based power cable sleeve and preparation method thereof

A power cable and casing technology, applied in the field of PVC-based power cable casing and its preparation, can solve the problems of poor material performance stability, small friction coefficient, uneven settlement, etc., achieve low strength and toughness, and improve flame retardancy performance, good electromagnetic shielding effect

Inactive Publication Date: 2020-08-07
扬州力泰管业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The product of this invention has high temperature resistance and anti-aging performance, and can adapt to the high temperature caused by overload and short circuit during the use of power cables. The material has high dielectric strength and volume resistivity; it has good flexibility, high compressive strength, and uneven settlement resistance. There is no need to encapsulate the poured concrete on the construction site; the friction coefficient of the inner wall surface is small, which is convenient for use and the product has a long service life. However, this material contains many additives. During long-term use, these small molecule additives will leak out, making the material performance Poor stability and short service life

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] A PVC-based power cable sleeve and a preparation method thereof, comprising the following raw materials in parts by weight: 30 parts of PVC, 20 parts of CPVC, 30 parts of fluorine-containing triazine modified PVC, vinyl ferrocene-2,4- 6 parts of diamino-6-vinyl-S-triazine-bistrimethylsilylated vinyl phosphate-vinyl trimethoxysilane copolymer, 0.5 parts of oxidized paraffin wax, 5 parts of nano-silicon boride, talcum powder 10 servings.

[0028] The preparation method of the fluorine-containing triazine modified PVC comprises the following steps: dissolving 3kg of PVC in 20kg of tetrahydrofuran, adding N,N-dimethyl-6-(2,2,2-trifluoroethane Oxygen) 1,3,5-triazine-2,4-diamine 1kg, stirred and reacted at 50°C for 6 hours, then rotary evaporated to remove tetrahydrofuran, then dissolved the product with N,N-dimethylformamide, and then Precipitate in acetone, wash with ether three times, and then dry to constant weight in a vacuum oven at 70°C to obtain fluorine-containing t...

Embodiment 2

[0032]A PVC-based power cable sleeve and a preparation method thereof, comprising the following raw materials in parts by weight: 33 parts of PVC, 22 parts of CPVC, 32 parts of fluorine-containing triazine modified PVC, vinyl ferrocene-2,4- 7 parts of diamino-6-vinyl-S-triazine-bistrimethylsilylated vinyl phosphate-vinyl trimethoxysilane copolymer, 0.8 parts of oxidized paraffin wax, 6 parts of nano-silicon boride, mica powder 11 servings.

[0033] The preparation method of the fluorine-containing triazine modified PVC comprises the following steps: dissolving 3.5kg of PVC in 21kg of cyclohexanone, adding N,N-dimethyl-6-(2,2,2- Trifluoroethoxy) 1,3,5-triazine-2,4-diamine 1kg, stirred and reacted at 55°C for 6.5 hours, then removed cyclohexanone by rotary evaporation, and then used N,N-dimethylformaldehyde The amide dissolved product was precipitated in acetone, washed 4 times with ether, and then dried in a vacuum oven at 73°C to constant weight to obtain fluorine-containing ...

Embodiment 3

[0037] A PVC-based power cable casing and a preparation method thereof, comprising the following raw materials in parts by weight: 35 parts of PVC, 25 parts of CPVC, 35 parts of fluorine-containing triazine modified PVC, vinyl ferrocene-2,4- 8 parts of diamino-6-vinyl-S-triazine-bistrimethylsilylated vinyl phosphate-vinyl trimethoxysilane copolymer, 1 part of oxidized paraffin wax, 8 parts of nano-silicon boride, pulverized coal Ash 13 parts.

[0038] The preparation method of the fluorine-containing triazine modified PVC comprises the steps of: dissolving 4kg of PVC in 23kg of chlorobenzene, adding N,N-dimethyl-6-(2,2,2-trifluoro Ethoxy)1,3,5-triazine-2,4-diamine 1kg, stirred and reacted at 60°C for 7 hours, then rotary evaporated to remove chlorobenzene, and then dissolved the product with N,N-dimethylformamide , and then precipitated in acetone, washed 4 times with ether, and then dried in a vacuum oven at 75°C to constant weight to obtain fluorine-containing triazine-modi...

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PUM

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Abstract

The invention provides a PVC-based power cable sleeve and a preparation method of the power cable sleeve. The PVC-based power cable sleeve is composed of the following raw materials in parts by weight: 30-40 parts of PVC, 20-30 parts of CPVC, 30-40 parts of fluorine-containing triazine-modified PVC, 6-10 parts of vinylferrocene-2,4-diamino-6-vinyl-S-triazine-bis(trimethylsilyl)vinyl phosphate-vinyltrimethoxysilane copolymer, 0.5-1.5 parts of oxidized paraffin, 5-10 parts of nanometer silicon boride and 10-15 parts of a filler. The invention further discloses a preparation method of the PVC-based power cable sleeve. The PVC-based power cable sleeve disclosed by the invention has the advantages of good processing fluidity, low preparation cost, good impact resistance, corrosion resistance, heat resistance, weather resistance and wear resistance, environment friendliness, no toxicity and excellent comprehensive performance.

Description

technical field [0001] The invention relates to the technical field of polymer materials, in particular to a PVC-based power cable sleeve and a preparation method thereof. Background technique [0002] With the advancement of science and the improvement of people's living standards, the relationship between electricity and our lives is getting closer and closer. Power cables are one of the must-have products when using electrical products. They play the role of transmitting electricity, transmitting information and realizing electromagnetic energy conversion. effect. At present, my country's power cables, especially high-voltage power cable transmission lines, have been buried from overhead. Therefore, the use of new power cable casings with high strength, corrosion resistance, pollution-free and convenient construction and installation has become a common demand in the power pipe industry. [0003] Power cable sleeves are commonly used insulation protection sleeves for pow...

Claims

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Application Information

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IPC IPC(8): C08L27/06C08L43/04C08L27/24C08L27/22C08L91/06C08K3/34C08K3/26C08K7/26H01B3/44C08F8/32
CPCC08L27/06C08L27/22H01B3/443C08F8/32C08K2201/011C08K2003/265C08L2203/202C08L2201/02C08L2203/18C08L2201/08C08L2201/04C08L43/04C08L27/24C08L91/06C08K3/34C08K3/26C08K7/26C08F114/06
Inventor 王峰王进花余成龙
Owner 扬州力泰管业有限公司
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