Unlock instant, AI-driven research and patent intelligence for your innovation.

Lightweight self-curing electric insulation coating material and preparation method thereof and power line

A self-curing, insulating coating technology, used in power cables, insulated cables, power cables for overhead applications, etc., can solve the problems of chemical corrosion of copper and aluminum wires, only suitable for current use, short shelf life, etc., to shorten the Reasonable control of transformation time, viscosity and thixotropy, and the effect of light weight

Active Publication Date: 2020-04-17
HUNAN AEROSPACE SANFENG SCI & TECH CO LTD
View PDF10 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This material uses vinyl hydrosilane as the resin matrix, but under the action of the platinum catalyst that coexists with it, the vinyl group easily undergoes addition polymerization with silicon-hydrogen bonds, which makes the material potentially cured before use. The shelf life is relatively long. Short, generally only suitable for ready-to-use. At the same time, the small molecules of ketoxime removed by the crosslinking agent during the reaction may cause chemical corrosion to copper and aluminum wires

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Lightweight self-curing electric insulation coating material and preparation method thereof and power line
  • Lightweight self-curing electric insulation coating material and preparation method thereof and power line
  • Lightweight self-curing electric insulation coating material and preparation method thereof and power line

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] The preparation method of the insulating coating material of the present embodiment is as follows:

[0039] By weight, 65 parts of α with a number average molecular weight of 80000, ω dimethoxy modified silicone resin, 6 parts of dimethyl silicone oil, 7 parts of hydrophobic fumed silica, 0.5 parts of chlorothalonil, 0.8 parts After the super wear-resistant carbon black is fully dispersed and uniform by the three-roll mill, it is transferred to the planetary double power mixer, and 20 parts of sphericity 97%, antistatic pressure 12Mpa, median particle size 60um, true density 0.20g are added at the same time / cm 3 Nano hollow glass microspheres, completely remove the water vapor in the material under vacuum heating and stirring environment, then slowly add 0.4 parts of hexamethyldisilazane, 1.5 parts of aminopropyltrimethoxysilane, 3 parts of methyl trimethyl A liquid mixture composed of oxysilane crosslinking agent and 1 part of bis(ethyl acetoacetate) diisopropyl tita...

Embodiment 2

[0042] The preparation method of the insulating coating material of the present embodiment is as follows:

[0043] By weight, 75 parts of α with a number average molecular weight of 100000, ω dimethoxy modified silicone resin, 7 parts of dimethyl silicone oil, 5 parts of hydrophobic fumed silica, 1 part of carbendazim, 0.4 parts After the super wear-resistant carbon black is fully dispersed and uniform by the three-roll mill, it is transferred to the planetary double power mixer, and 22 parts of sphericity 95%, antistatic pressure 30Mpa, median particle size 45um, true density 0.49g are added at the same time / cm 3Nano hollow glass microspheres, completely remove the water vapor in the material under vacuum heating and stirring environment, then slowly add 0.5 parts of ultrafine anhydrous calcium chloride, 1 part of glycidyl ether propyl triethylsilane, 2 parts A mixture of methyltrimethoxysilane crosslinking agent and 0.7 parts of bis(ethyl acetoacetate) diisopropyl titanate...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
Densityaaaaaaaaaa
Tensile strengthaaaaaaaaaa
Electrical breakdown strengthaaaaaaaaaa
Login to View More

Abstract

The invention relates to a lightweight self-curing electric insulation coating material and a preparation method thereof and a power line. The lightweight self-curing electric insulation coating material is composed of, in parts by weight, 50-80 parts of modified organic silicon resin, 5-7 parts of a plasticizer, 1-4 parts of a cross-linking agent, 0.1-3 parts of a titanate chelate, 1-8 parts of hydrophobic fumed silica, 10-30 parts of nano hollow microspheres, 0.2-2 parts of a moisture scavenger, 0.5-2 parts of super wear-resistant carbon black, 1-3 parts of an adhesion promoter and 0-1 partof a mildew inhibitor. The modified organic silicon resin contains at least two alkoxy functional groups, and the number-average molecular weight of the modified organic silicon resin is 70000-120000.The insulation coating material disclosed by the invention is light in weight, the density is only 0.9-1.0 g / cm<3>, the stress load of an original tower pole is not excessively increased, and a wiredoes not generate sag.

Description

technical field [0001] The invention relates to a lightweight self-curing electric insulation coating material, a preparation method and an electric power line. Background technique [0002] The early outdoor overhead power lines were generally in the form of bare aluminum wires due to cost and heat dissipation considerations. At the same time, in order to increase the tensile strength, steel wires were mostly mixed in the middle, commonly known as "steel-reinforced aluminum stranded wire". Due to the lack of insulation protection, such wires are prone to oxidation and corrosion during long-term exposure to the sun and rain. At the same time, there may be serious safety hazards such as phase-to-phase short circuit, leakage / electric shock, etc.; and the increase of insulation skin will inevitably lead to the deterioration of power line quality. The increase will lead to an increase in the weight load of the electric frame and increase the difficulty of transformation. Over t...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): C09D183/04C09D5/14C09D7/61C09D7/63C09D7/65H01B7/02H01B9/00
CPCC08K2201/003C08K2201/011C08L2203/202C08L2205/025C09D5/14C09D183/04C09D7/61C09D7/63C09D7/65C09D7/70H01B7/02H01B9/008C08L83/04C08K13/04C08K7/26C08K3/04C08K7/28C08K5/10
Inventor 林益军何禄文张刚崔武林何雄亮
Owner HUNAN AEROSPACE SANFENG SCI & TECH CO LTD