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Wear-resistant insulating material covering bare overhead conductor and preparation method and application thereof

An insulating material and coating technology, applied in insulators, coatings, electrical components, etc., can solve problems such as low hardness, poor wear resistance, and short service life

Active Publication Date: 2019-07-05
ELECTRIC POWER RESEARCH INSTITUTE, CHINA SOUTHERN POWER GRID CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In view of the deficiencies of the above-mentioned prior art, the object of the present invention is to provide a wear-resistant insulating material coated on the overhead bare wire and its preparation method and application, aiming at solving the problem of low hardness of the liquid insulating material in the prior art. , poor wear resistance and short service life

Method used

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  • Wear-resistant insulating material covering bare overhead conductor and preparation method and application thereof

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Embodiment 1

[0068] A wear-resistant insulating material coated on overhead bare wires, comprising the following ingredients in parts by weight:

[0069] Hydroxypolyphenylmethylsiloxane 30 parts,

[0070] 38 parts of hydroxyl-terminated polydimethylsiloxane,

[0071] Hydrophobic nano fumed silica 12 parts,

[0072] Hydrophobic microsilica powder 28 parts,

[0073] Hydrophobic silicon carbide 2 parts,

[0074] 6 parts of hollow glass microspheres,

[0075] 1.5 parts of pigment,

[0076] 7 parts of deketoxime type cross-linking agent,

[0077] Catalyst 3 parts.

[0078] The hydroxypolyphenylmethylsiloxane consists of 30 parts of 2,4,6-trimethyl-2,4,6-triphenylcyclotrisiloxane, 70 parts of octamethylcyclotetrasiloxane, Prepared from 0.2 parts of deionized water and 0.5 parts of tetramethylammonium hydroxide silicon alkoxide.

[0079] The preparation method of the wear-resistant insulating material coated on the bare overhead wire includes the following steps:

[0080] First, prepare ...

Embodiment 2

[0086] A wear-resistant insulating material coated on overhead bare wires, comprising the following ingredients in parts by weight:

[0087] Hydroxypolyphenylmethylsiloxane 20 parts,

[0088] 50 parts of hydroxyl-terminated polydimethylsiloxane,

[0089] Hydrophobic nano fumed silica 8 parts,

[0090] 32 parts of hydrophobic silica powder,

[0091] Hydrophobic silicon carbide 1 part,

[0092] 10 parts of hollow glass microspheres,

[0093] 1 part paint,

[0094] 6 parts of deketoxime type cross-linking agent,

[0095] Catalyst 2 parts.

[0096] The hydroxypolyphenylmethylsiloxane consists of 40 parts of 2,4,6-trimethyl-2,4,6-triphenylcyclotrisiloxane, 80 parts of octamethylcyclotetrasiloxane, Prepared from 0.5 parts of deionized water and 0.8 parts of tetramethylammonium hydroxide silicon alkoxide.

[0097] The preparation method of the wear-resistant insulating material coated on the bare overhead wire includes the following steps:

[0098] First, prepare the hydroxy...

Embodiment 3

[0104] A wear-resistant insulating material coated on overhead bare wires, comprising the following ingredients in parts by weight:

[0105] Hydroxypolyphenylmethylsiloxane 25 parts,

[0106] 42 parts of hydroxyl-terminated polydimethylsiloxane,

[0107] Hydrophobic nano fumed silica 16 parts,

[0108] Hydrophobic microsilica powder 40 parts,

[0109] Hydrophobic silicon carbide 5 parts,

[0110] 8 parts of hollow glass microspheres,

[0111] 2 parts of paint,

[0112] 10 parts of deketoxime type cross-linking agent,

[0113] Catalyst 2.5 parts.

[0114] The hydroxypolyphenylmethylsiloxane consists of 28 parts of 2,4,6-trimethyl-2,4,6-triphenylcyclotrisiloxane, 90 parts of octamethylcyclotetrasiloxane, Prepared from 0.05 parts of deionized water and 0.6 parts of tetramethylammonium hydroxide silicon alkoxide.

[0115] The preparation method of the wear-resistant insulating material coated on the bare overhead wire includes the following steps:

[0116] First, prepare ...

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Abstract

A wear-resistant insulating material covering a bare overhead conductor and a preparation method and application thereof are disclosed. The insulating material includes, by weight, 20-40 parts of hydroxy poly(phenyl methyl siloxane), 30-50 parts of hydroxyl-terminated polydimethylsiloxane, 5-20 parts of hydrophobic nanometer fumed silica, 20-40 parts of hydrophobic silica fume, 1-5 parts of hydrophobic silicon carbide, 5-10 parts of hollow glass microbeads, 1-2 parts of pigment, 5-10 parts of a ketoxime removing type crosslinking agent and 1-5 parts of a catalyst. The insulating material has advantages of low density, a high solid content, high hardness, good wear resistance, and the like, does not influence carrying load of the bare conductor when the bare conductor is coated with the material, and has a wide application temperature range. The preparation method is high in efficiency and highly controllable.

Description

technical field [0001] The invention relates to the technical field of polymer insulating material and its preparation and application, in particular to an insulating material coated on bare wires and its preparation method and application. Background technique [0002] In order to facilitate heat dissipation, the early overhead conductors generally use bare conductors, which are cheap to manufacture. By twisting aluminum wires and steel wires outside the steel core wires, they are called "steel-core aluminum stranded wires". This wire is generally used for erecting distribution lines in the field. However, since the bare wire has no insulating sheath, the wire is easily corroded when exposed to the atmospheric environment, and it is easy to cause accidents when used in densely populated areas, areas near trees, and lines crossing (rivers, ponds, viaducts, etc.). [0003] With the transformation of the power grid, the overhead bare wires are gradually replaced by insulated ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D183/04C09D183/06C09D5/25C09D7/61C09D7/63C08G77/16C08G77/04
CPCC08G77/04C08G77/16C08G77/80C08K2201/011C08K2201/014C08L2203/202C09D7/61C09D7/63C09D7/67C09D7/70C09D183/04H01B3/308C08L83/06C08K13/04C08K3/36C08K3/34C08K7/28
Inventor 张万青曾活仪
Owner ELECTRIC POWER RESEARCH INSTITUTE, CHINA SOUTHERN POWER GRID CO LTD
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