Environment-friendly cable filler and its preparation method

A cable filling and environment-friendly technology, applied in the direction of insulating cables, cables, circuits, etc., can solve the problems of shortening the service life of cables, reducing the insulation level of insulating materials, economic losses, etc., to prolong service life, improve electrical performance, and save resources Effect

Inactive Publication Date: 2012-04-04
徐州东兴能源有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The insulation level of insulating materials is greatly reduced, thereb

Method used

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  • Environment-friendly cable filler and its preparation method
  • Environment-friendly cable filler and its preparation method
  • Environment-friendly cable filler and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] Embodiment 1: Environment-friendly type cable filler, the parts by weight of its constituent raw materials are:

[0016]

[0017]

[0018] The preparation method of environment-friendly cable filler comprises the following steps:

[0019] (1) Weigh each raw material according to the weight of the constituent raw materials, mix them evenly, and load them into the extruder hopper, and the temperature of the barrel of the extruder is controlled at 130-190° C. to generate a molten mixture;

[0020] (2) Pour nitrogen gas into the molten mixture, take it out and pass it through a hot water tank at 75-95°C and a water tank at room temperature in sequence, and air-dry to obtain the finished product.

Embodiment 2

[0021] Embodiment 2: environment-friendly type cable filler, the weight part of its composition raw material is:

[0022]

[0023] The preparation method of environment-friendly cable filler comprises the following steps:

[0024] (1) Weigh each raw material according to the weight of the constituent raw materials, mix them evenly, and load them into the extruder hopper, and the temperature of the barrel of the extruder is controlled at 130-190° C. to generate a molten mixture;

[0025] (2) Pour nitrogen gas into the molten mixture, take it out and pass it through a hot water tank at 75-95°C and a water tank at room temperature in sequence, and air-dry to obtain the finished product.

Embodiment 3

[0026] Embodiment 3: The physical, mechanical and flame-retardant properties of the environment-friendly cable filler of the present invention are shown in Table 1 below:

[0027] Table 1:

[0028] performance

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PUM

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Abstract

The invention discloses environment-friendly cable filler and its preparation method. The filler is mainly prepared by mixing the following raw materials in proportion: polyvinyl chloride resin, phenolic resin, polypropylene, triallyl cyanurate, a silane coupling agent, titanate, zinc oxide, straw ash, graphite, calcium carbonate, an antiager, a fire retardant and lead silicate. The environment-friendly cable filler provided in the invention has the advantages of stable chemical structure, indecomposability by microorganism, good gelling performance, high swelling capacity, and can improve electric properties of cables, extend cable service life, and save resources.

Description

technical field [0001] The invention relates to the field of auxiliary materials for cables, in particular to an environment-friendly cable filler and a preparation method thereof. Background technique [0002] The application of high-voltage power cables in my country is very common and extensive. Most of the high-voltage power cables are laid underground and the environment is mostly humid. Moisture can easily penetrate into the interior of the cable structure. Therefore, under normal high-voltage energization, the theory of electrical stress believes that the internal stress of the cable during production and operation is the main reason for promoting the growth of water branches. When the cable is subjected to voltage and water, in the high-voltage power frequency electric field, the polar water molecules migrate strongly and convert the electric field energy into kinetic energy and heat energy, and the water molecules with huge energy move violently inside the insulatio...

Claims

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Application Information

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IPC IPC(8): C08L27/06C08L23/12C08L61/06H01B7/288C08K13/02C08K5/3492C08K5/54C08K5/10C08K3/22C08K3/04C08K3/26C08K3/34B29C47/92B29C48/92
CPCB29C48/92B29C2948/92704B29C2948/92895
Inventor 常珍国
Owner 徐州东兴能源有限公司
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