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Flame-retardant cable filler and preparation method thereof

A technology of flame-retardant cables and fillers, which is applied in the direction of power cables, cables, circuits, etc., can solve the problems of shortening the service life of cables, economic losses, and reducing the insulation level of insulating materials, so as to prolong service life, save resources, and improve electrical performance. Improved effect

Inactive Publication Date: 2012-06-20
池州灵芝化建材料科技有限公司
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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, thereby shortening the service life of cables and causing huge economic losses

Method used

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  • Flame-retardant cable filler and preparation method thereof
  • Flame-retardant cable filler and preparation method thereof
  • Flame-retardant cable filler and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] Embodiment 1: flame retardant cable filler, the weight portion of its composition raw material is:

[0016]

[0017]

[0018] The preparation method of flame retardant cable filler comprises the following steps:

[0019] (1) each raw material is weighed according to the weight portion of the constituent raw material, mixed uniformly, loaded into the hopper of the extruder, and the barrel temperature of the extruder is controlled at 130-190 ° C to generate a molten state mixture;

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

Embodiment 2

[0021] Embodiment 2: flame retardant cable filler, the weight portion of its composition raw material is:

[0022]

[0023] The preparation method of flame retardant cable filler comprises the following steps:

[0024] (1) each raw material is weighed according to the weight portion of the constituent raw material, mixed uniformly, loaded into the hopper of the extruder, and the barrel temperature of the extruder is controlled at 130-190 ° C to generate a molten state mixture;

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

Embodiment 3

[0026] Example 3: The physical, mechanical and flame-retardant properties of the flame-retardant 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 flame-retardant cable filler and a preparation method of the flame-retardant cable filler. The flame-retardant cable filler is prepared by the following main raw materials according to a certain mixing proportion: polyvinyl chloride resin, polyvinyl resin, EVA (ethylene), polyamide resin, silane coupling agents, roasted zeolite powders, diatomite, titanate, zinc stearate, attapulgite, straw ashes, carbon black, azodicarbonamide, an age resister 1010 and a fire retardant. The fame-retardant cable filler has a stable chemical structure, can not be decomposed by microorganism easily, is good in gel property and high in swelling capability, and the electrical property of the cable is improved, the service life of the cable is prolonged, and the resources are saved.

Description

technical field [0001] The invention relates to the field of auxiliary materials for cables, in particular to a flame-retardant 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 inside of the cable structure. Therefore, the theory of electrical stress under normal high-voltage energization states 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 generate strong migration and convert the electric field energy into kinetic energy and heat energy, and the water molecules that obtain huge energy move violently inside the insu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L27/06C08L23/06C08L77/00C08L23/08C08L31/04H01B9/00C08K13/02C08K3/04C08K3/34C08K5/098C08K3/22C08K5/23B29C47/92B29C48/92
CPCB29C48/92B29C2948/92704B29C2948/92895
Inventor 常珍国
Owner 池州灵芝化建材料科技有限公司
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