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Temperature memory color-variable insulating material for cable

An insulating material and temperature memory technology, applied to rubber insulators, organic insulators, etc., can solve problems such as hindering safe evacuation and fire fighting, loss of life and property, etc., and achieve insulation performance, high resistance to compression set performance, and good stability Effect

Inactive Publication Date: 2016-04-20
STATE GRID SHANDONG ELECTRIC POWER +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] No matter from the perspective of mechanical properties, thermal fire chemical resistance and disaster protection, the outer insulation material of the cable plays a vital role in protecting the internal material from damage and maintaining its normal operation. In the specific application process, the cable The outer insulating material must be able to resist sunlight, UV radiation, ozone aging, and chemical erosion, and at the same time, it can still guarantee or temporarily guarantee its normal operation in the case of accidental disasters. With the frequent occurrence of electrical fire accidents, the resistance of wires and cables The burning problem has gradually attracted the attention of all countries in the world; when the cable burns, it releases a large amount of smoke and toxic and corrosive gases, which are dangerous factors in fires, which hinder people's safe evacuation and fire fighting work, and cause serious losses of life and property. At the same time, with the development of the communication industry, the automobile industry and the computer industry, especially in many occasions such as aviation wires, automobile wires, high-temperature instrument cables, and oil drilling platform cables, it is increasingly necessary to use flame-retardant, thermally stable, and heat-resistant materials. Cable outer layer insulation material with high deformation temperature

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] A temperature-memory color-changing insulating material for cables, which is prepared from the following raw materials in parts by weight:

[0019] 1 part of antimony trioxide, 1 part of magnesium hydroxide, 2 parts of aluminum hydroxide, 2 parts of borax, 2 parts of triphenyl phosphate, 2 parts of zinc borate, 2 parts of glass fiber, 3 parts of thermochromic powder, palygorskite 3 parts, 4 parts of stearic acid, 5 parts of egg shell, 5 parts of kaolin, 8 parts of aluminum nitride, 8 parts of triallyl cyanurate, 12 parts of chlorinated polyethylene, 16 parts of EPDM rubber, 16 parts of hydrogenated nitrile rubber.

[0020] Among them, the particle size of antimony trioxide, magnesium hydroxide, aluminum hydroxide, zinc borate, thermochromic powder, kaolin and aluminum nitride is controlled at 100 mesh; the diameter of glass fiber is 10um, and the length is 30um.

[0021] The preparation method of above-mentioned insulation material comprises the steps:

[0022] Step 1...

Embodiment 2

[0027] A temperature-memory color-changing insulating material for cables, which is prepared from the following raw materials in parts by weight:

[0028] 2 parts of antimony trioxide, 2 parts of magnesium hydroxide, 3 parts of aluminum hydroxide, 3 parts of borax, 3 parts of triphenyl phosphate, 3 parts of zinc borate, 3 parts of glass fiber, 4 parts of thermochromic powder, palygorskite 4 parts, 6 parts of stearic acid, 7 parts of egg shell, 7 parts of kaolin, 10 parts of aluminum nitride, 10 parts of triallyl cyanurate, 15 parts of chlorinated polyethylene, 20 parts of EPDM rubber, 20 parts of hydrogenated nitrile rubber.

[0029] Among them, the particle size of antimony trioxide, magnesium hydroxide, aluminum hydroxide, zinc borate, thermochromic powder, kaolin and aluminum nitride is controlled at 100 mesh; the diameter of glass fiber is 20um, and the length is 50um.

[0030] The preparation method of above-mentioned insulation material comprises the steps:

[0031] St...

Embodiment 3

[0036] The performance test of the insulating material prepared by the present invention:

[0037] 1. The mechanical properties of the insulating material prepared in Example and Example 2 are better in corrosion resistance and insulation performance. The specific test results can be seen in Table 1, wherein the thickness of the insulation layer is 2mm:

[0038] Table 1

[0039] group Exterior Tensile strength (N / mm 2 ) Elongation at break (%) Thermal stability time at 200°C (min) Volume resistivity×10 -15 (Ω·cm) Oxygen Index Example 1 Good plasticization, uniform color and no impurities 17.7 476 >180 2.47 33.9 Example 2 Good plasticization, uniform color and no impurities 17.9 468 >180 2.45 34.3

[0040] 2. Anti-corrosion performance test: soak the test material in 10% sodium chloride solution for 100 days, and measure the main performance parameters, see Table 2.

[0041] Table 2

[0042] group Volume resistivity ...

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Abstract

The invention belongs to the field of electric power materials and discloses a temperature memory color-variable insulating material for a cable. The temperature memory color-variable insulating material is prepared from 1-2 parts by weight of antimonous oxide, 1-2 parts by weight of magnesium hydroxide, 2-3 parts by weight of aluminum hydroxide, 2-3 parts by weight of borax, 2-3 parts by weight of triphenyl phosphate, 2-3 parts by weight of zinc borate, 2-3 parts by weight of glass fibers, 3-4 parts by weight of temperature-sensitive color-variable powder, 3-4 parts by weight of palygorskite, 4-6 parts by weight of stearic acid, 5-7 parts by weight of egg shells, 5-7 parts by weight of kaolin, 8-10 parts by weight of aluminum nitride, 8-10 parts by weight of triallyl cyanurate, 12-15 parts by weight of chlorinated polyethylene, 16-20 parts by weight of an ethylene-propylene-diene monomer and 16-20 parts by weight of hydrogenated butadiene-acrylonitrile rubber. The temperature memory color-variable insulating material can produce different colors based on different temperatures and can provides high temperature early warning.

Description

technical field [0001] The invention belongs to the field of power materials, and in particular relates to a temperature-memory color-changing insulating material for cables. Background technique [0002] A cable is a wire made of one or more mutually insulated conductors and an outer insulating layer that transmits power or information from one place to another. The most important component of a transmission line is the power cable. In recent years, with the increasing development and popularization of the use of wires and cables in production and life, the demand for wires and cables has increased rapidly, and with the development of the economy, the requirements for its materials have become higher and higher. It requires softness, wear resistance, and durability. Corrosion and high and low temperature resistance and other properties. [0003] No matter from the perspective of mechanical properties, thermal fire chemical resistance and disaster protection, the outer i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L15/00C08L23/16C08L23/28C08K13/06C08K7/14C08K5/3492C08K3/28C08K3/22C08K3/38H01B3/28
Inventor 李文峰隋树法刘斐苏永义张庆伟相鑫
Owner STATE GRID SHANDONG ELECTRIC POWER
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