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Insulating material and polyethylene-based mica synergistically reinforced insulating and flame-retardant cable, and preparation methods thereof

A technology for reinforced insulation and flame retardant cables, which is applied in the direction of insulated cables, cable/conductor manufacturing, insulators, etc. It can solve problems such as the adverse effects of electrical properties, insulation properties and mechanical properties, and achieve the effect of comprehensive flame retardant properties.

Inactive Publication Date: 2019-08-06
SHANGHAI XINYI ELECTRICAL CIRCUIT EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Organic composite insulation is usually based on polyvinyl chloride or polyolefin, and clay and hydroxide inorganic substances are added as composite phases. Compared with organic insulation, its oxygen index is improved and it has certain flame retardant properties, but electrical properties, Insulation and mechanical properties are adversely affected to varying degrees

Method used

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  • Insulating material and polyethylene-based mica synergistically reinforced insulating and flame-retardant cable, and preparation methods thereof
  • Insulating material and polyethylene-based mica synergistically reinforced insulating and flame-retardant cable, and preparation methods thereof
  • Insulating material and polyethylene-based mica synergistically reinforced insulating and flame-retardant cable, and preparation methods thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] 1. Using annealed copper material to make a stranded conductor;

[0027] 2. Prepare 100 parts by weight of linear low density polyethylene, 12 parts by weight of ethylene-vinyl acetate copolymer, KMg 3 (AlSi 3 o 10 )F 2 2.5 parts by weight, 8 parts by weight of isocyanate propyl triethoxysilane, 0.9 parts by weight of polydimethylsiloxane, 0.8 parts by weight of diisodecyl phthalate, 2,6-di-tert-butyl p-cresol 1.5 parts by weight, 0.05 parts by weight of calcium stearate, 0.03 parts by weight of 2-hydroxy-4-dodecyloxybenzophenone, 0.03 parts by weight of vinyl tris (β-methoxyethoxy) silane, none 100 parts by weight of water ethanol, for subsequent use;

[0028]3. Add 0.03 parts by weight of vinyl tris(β-methoxyethoxy)silane to 100 parts by weight of absolute ethanol and mix thoroughly, and continue to add 2.5 parts by weight of mica (KMg 3 (AlSi 3 o 10 )F 2 ) powder, stirred at a constant temperature of 95°C for 25 minutes to obtain modified mica powder;

[00...

Embodiment 2

[0034] 1. Using annealed copper material to make a stranded conductor;

[0035] 2. Prepare 100 parts by weight of linear low density polyethylene, 14 parts by weight of ethylene-vinyl acetate copolymer, KMg 3 (AlSi 3 o 10 )F 2 2.8 parts by weight, 10 parts by weight of isocyanate propyl triethoxysilane, 0.7 parts by weight of polydimethylsiloxane, 0.5 parts by weight of diisodecyl phthalate, 2,6-di-tert-butyl p-cresol 0.8 parts by weight, 0.05 parts by weight of calcium stearate, 0.03 parts by weight of 2-hydroxy-4-dodecyloxybenzophenone, 0.05 parts by weight of vinyl tris (β-methoxyethoxy) silane, none 100 parts by weight of water ethanol, for subsequent use;

[0036] 3. Add 0.05 parts by weight of vinyl tris(β-methoxyethoxy)silane to 100 parts by weight of absolute ethanol and mix thoroughly, then continue to add 5.8 parts by weight of mica (KMg 3 (AlSi 3 o 10 )F 2 ) powder, stirred at a constant temperature of 95°C for 25 minutes to obtain modified mica powder;

...

Embodiment 3

[0042] 1. Using annealed copper material to make a stranded conductor;

[0043] 2. Prepare 100 parts by weight of linear low density polyethylene, 16 parts by weight of ethylene-vinyl acetate copolymer, KMg 3 (AlSi 3 o 10 )F 2 3.3 parts by weight, 6 parts by weight of isocyanate propyl triethoxysilane, 0.6 parts by weight of polydimethylsiloxane, 0.3 parts by weight of diisodecyl phthalate, 2,6-di-tert-butyl p-cresol 1.2 parts by weight, 0.07 parts by weight of calcium stearate, 0.05 parts by weight of 2-hydroxy-4-dodecyloxybenzophenone, 0.08 parts by weight of vinyl tris (β-methoxyethoxy) silane, none 100 parts by weight of water ethanol, for subsequent use;

[0044] 3. Add 0.08 parts by weight of vinyl tris(β-methoxyethoxy)silane to 100 parts by weight of absolute ethanol and mix thoroughly, then continue to add 3.3 parts by weight of mica (KMg 3 (AlSi 3 o 10 )F 2 ) powder, stirred at a constant temperature of 95°C for 25 minutes to obtain modified mica powder;

[...

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Abstract

The invention relates to an insulating material and a polyethylene-based mica synergistically reinforced insulating and flame-retardant cable, and preparation methods thereof. Compared with the priorart, the preparation methods in the embodiments of the invention adopt linear low density polyethylene, an ethylene-vinyl acetate copolymer, KMg3(AlSi3O10)F2, 3-isocyanatopropyltriethoxysilane, polydimethylsiloxane, di-iso-decyl phthalate, 2,6-di-tert-butyl-p-cresol, calcium stearate, 2-hydroxy-4-dodecyloxybenzophenone, vinyl tris(beta-methoxyethoxy)silane and anhydrous ethanol to prepare an insulating layer. The preparation method of the polyethylene-based mica synergistically reinforced insulating and flame-retardant cable in the embodiment of the invention can significantly improve the flame retardation performance of the cable, and also can improve the electrical, insulating and mechanical properties of the cable.

Description

technical field [0001] The invention belongs to the field of power transmission and distribution line equipment, and relates to a cable and a preparation method thereof, in particular to an insulating material and polyvinyl mica synergistically reinforced insulated flame-retardant cable and a preparation method thereof. Background technique [0002] Cables are an important part of power transmission and distribution lines for the transmission of electrical energy. The insulating layer covering the outer side of the metal conductor in the cable structure has an important impact on the overall performance of the cable. The most basic function of the insulating layer is to isolate the metal conductor carrying the current from the outer layer, and to maintain long-term service under the condition of bearing voltage. With the continuous development of various application fields, the service environment of cables is becoming more and more complex and subdivided, and the requireme...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/08C08L83/04C08K13/06C08K9/06C08K3/34H01B3/44H01B7/02H01B9/00H01B13/14
CPCC08L23/0815H01B3/441H01B7/0275H01B9/00H01B13/148C08L2205/03C08L2201/02C08L2203/20C08L23/0853C08L83/04C08K13/06C08K9/06C08K3/34
Inventor 陈晨沈刚翁澜李超峰
Owner SHANGHAI XINYI ELECTRICAL CIRCUIT EQUIP
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