High-toughness ice-covering-resistant cable

A technology of anti-icing and high toughness, which is applied in the manufacture of power cables, insulated cables, and cables/conductors. It can solve the problems of poor toughness of cable insulation, poor low temperature resistance, and reduced adhesion, and achieve good cold resistance. Excellent water repellency, effect of improving low temperature resistance

Active Publication Date: 2020-09-18
国网河南省电力公司新野县供电公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Compared with the prior art, the anti-icing cable insulation of the invention is directly wrapped on the outside of the cable when the cable is produced, which saves resources, and can greatly improve the hydrophobicity of the surface of the cable insulation, and has the function of anti-pollution. Reduce the adhesion between transmission cables and ice by 70-90%. This invention ensures the safety of cables and reduces production costs. However, the patented cable insulation is made of nitrile rubber, which has poor low temperature resistance and general elasticity. , the toughness of the resulting cable insulation is poor

Method used

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  • High-toughness ice-covering-resistant cable

Examples

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Comparison scheme
Effect test

Embodiment 1

[0022] A high-toughness anti-icing cable, including a core, a shielding layer and an anti-icing layer, the anti-icing layer is made of the following raw materials in parts by weight: 40 parts of fluorosilicone resin, 25 parts of linear low-density polyethylene , 10 parts of maleic anhydride grafted polyethylene, 1 part of stearic acid, 5 parts of magnesium hydroxide, modified Co 3 o 4 3 parts, 10 parts of hydroxyl silicone oil, 1 part of anti-aging agent, 0.5 parts of silane coupling agent and 1 part of accelerator.

[0023] The modified Co 3 o 4 The preparation method comprises the following steps:

[0024] Cobalt subcarbonate 2CoCO 3 3Co(OH) 2 ·H 2 O was calcined in a muffle furnace at 440 °C for 5 h and cooled to room temperature to obtain Co 3 o 4 film, then soaked in 1wt% stearic acid absolute ethanol solution for 1h, removed, and finally dried in an oven at 80°C for 20h to obtain the modified Co 3 o 4 .

[0025] The anti-aging agent is anti-aging agent MB.

...

Embodiment 2

[0034] A high toughness anti-icing cable, including a core, a shielding layer and an anti-icing layer, the anti-icing layer is made of the following raw materials in parts by weight: 43 parts of fluorosilicone resin, 28 parts of linear low-density polyethylene , 12 parts of maleic anhydride grafted polyethylene, 1.5 parts of stearic acid, 6.5 parts of magnesium hydroxide, modified Co 3 o 4 4 parts, 11 parts of hydroxyl silicone oil, 1.2 parts of anti-aging agent, 1 part of silane coupling agent and 1.5 parts of accelerator.

[0035] The modified Co 3 o 4 The preparation method comprises the following steps:

[0036] Cobalt subcarbonate 2CoCO 3 3Co(OH) 2 ·H 2 O was calcined in a muffle furnace at 450 °C for 3 h and cooled to room temperature to obtain Co 3 o 4 film, then soaked in 1.5wt% stearic acid absolute ethanol solution for 2 hours, removed, and finally dried in an oven at 60°C for 24 hours to obtain the modified Co 3 o 4 .

[0037] Described anti-aging agent ...

Embodiment 3

[0044] A high-toughness anti-icing cable, including a core, a shielding layer and an anti-icing layer, the anti-icing layer is made of the following raw materials in parts by weight: 45 parts of fluorosilicone resin, 31 parts of linear low-density polyethylene , 15 parts of maleic anhydride grafted polyethylene, 1.8 parts of stearic acid, 7.5 parts of magnesium hydroxide, modified Co 3 o 4 5 parts, 12.5 parts of hydroxyl silicone oil, 1.5 parts of anti-aging agent, 1.5 parts of silane coupling agent and 2 parts of accelerator.

[0045] The modified Co 3 o 4 The preparation method comprises the following steps:

[0046] Cobalt subcarbonate 2CoCO 3 3Co(OH) 2 ·H 2 O was calcined in a muffle furnace at 450 °C for 4 h and cooled to room temperature to obtain Co 3 o 4 film, then soaked in 1wt% stearic acid absolute ethanol solution for 1h, removed, and finally dried in an oven at 80°C for 24h to obtain the modified Co 3 o 4 .

[0047] The anti-aging agent is anti-aging a...

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Abstract

The invention discloses a high-toughness ice-covering-resistant cable, which comprises a core body, a shielding layer and an ice-covering-resistant layer, wherein the ice-covering-resistant layer is prepared from the following raw materials in parts by weight: 40-50 parts of a fluorosilicone resin, 25-35 parts of linear low-density polyethylene, 10-20 parts of maleic anhydride grafted polyethylene, 1-3 parts of stearic acid, 5-10 parts of magnesium hydroxide, 3-8 parts of modified Co3O4, 10-15 parts of hydroxyl silicone oil, 1-2 parts of an anti-aging agent, 0.5-2 parts of a silane coupling agent and 1-3 parts of an accelerant. The ice-covering-resistant cable is excellent in hydrophobic performance, excellent in low temperature resistance and ice-covering-resistant effect, high in strength and good in toughness.

Description

technical field [0001] The invention relates to the technical field of cables, in particular to a high toughness anti-icing cable. Background technique [0002] Icing on transmission lines often causes major accidents such as insulator flashover, line galloping, pole (tower) down, and line interruption, which seriously endanger the safety of the power grid. The existing anti-icing methods mainly include mechanical deicing methods and thermal anti-icing methods The mechanical deicing method is a method of deicing by developing various deicing machinery or facilities directly used on transmission lines. It is characterized by less energy consumption and low cost, but the deicing is passive, low The strength is high and limited by the terrain; the thermal anti-icing method prevents icing by increasing the thermal effect of the transmission line. Protection and deicing. Therefore, it is of great significance to develop a cold-resistant and ice-resistant cable that does not inc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B7/28H01B7/17H01B7/18H01B7/282H01B9/00H01B9/02H01B13/24C08L83/08C08L23/08C08L51/06C08L83/04C08K13/06C08K9/04C08K3/22C08K5/09
CPCC08K2003/2224C08K2003/2289C08L83/08C08L2203/202C08L2205/02C08L2205/035H01B7/17H01B7/18H01B7/187H01B7/28H01B7/2813H01B7/2825H01B9/008H01B9/02H01B13/24C08L23/0815C08L51/06C08L83/04C08K13/06C08K9/04C08K3/22C08K5/09
Inventor 李一卓赵应禄张燕朱莹娜杨德浩黄泓翔马海艳范忻齐超
Owner 国网河南省电力公司新野县供电公司
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