Modified cable filler and preparation method thereof

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

Active Publication Date: 2012-07-18
安徽塞帕斯电缆材料有限公司
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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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  • Modified cable filler and preparation method thereof
  • Modified cable filler and preparation method thereof
  • Modified cable filler and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] Embodiment 1: Modified cable filler, the parts by weight of its constituent raw materials are:

[0016]

[0017]

[0018] The preparation method of modified 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 barrel temperature 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: Modified cable filler, the parts by weight of its constituent raw materials are:

[0022]

[0023] The preparation method of modified 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 barrel temperature 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 modified 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 a modified cable filler and a preparation method thereof. The modified cable filler is prepared by mixing raw materials such as polyvinyl chloride (PVC) resin, phenolic resin, polypropylene resin, melamine, a silane coupling agent, titanate, zinc borate, straw ash, attapulgite, glass fibers, graphite, calcium carbonate, a flame retardant and lead silicate in a certain ratio. The modified cable filler has a stable chemical structure and high gel performance and swelling capacity and is not decomposed by microorganisms, the electrical performance of a cable is improved, the service life of the cable is prolonged, and resources are saved.

Description

technical field [0001] The invention relates to the field of auxiliary materials for cables, in particular to a modified 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 insulation. When the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L27/06C08L23/12C08L61/06C08K13/04C08K7/14C08K5/3492C08K5/54C08K5/10C08K3/38C08K3/34C08K3/04C08K3/26C08K3/22B29C47/92H01B7/288B29C48/92
CPCB29C48/92B29C2948/92704B29C2948/92895
Inventor 陶善如
Owner 安徽塞帕斯电缆材料有限公司
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