Material and preparation method of damping spacer rubber parts for UHV transmission lines

A transmission line and spacer technology, applied in the field of rubber materials and their preparation, can solve the problems of corona discharge, poor comprehensive performance, affecting the safe use of wires, etc., and achieve excellent weather resistance, high elasticity and low compression set. The effect of excellent comprehensive performance

Inactive Publication Date: 2016-03-02
南京金三力橡塑有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to overcome the poor overall performance of the damping spacer rubber parts in the prior art, especially the problem that corona discharge will be generated under the UHV electric field, which affects the safe use of wires, and provides a UHV transmission line. The material of the damping spacer rubber part and its preparation method can effectively solve the problem of corona discharge of the damping spacer rubber part under an ultra-high voltage electric field by adopting the technical scheme of the present invention

Method used

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  • Material and preparation method of damping spacer rubber parts for UHV transmission lines
  • Material and preparation method of damping spacer rubber parts for UHV transmission lines

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] The material of a damping spacer rubber part for UHV transmission lines in this embodiment, its components and weight percentages are shown in Table 1.

[0030] Table 1 Embodiment 1 The material components and percentage content of the rubber parts

[0031] Raw material name

Percentage %

EPDM

55

High wear-resistant carbon black

27

Acetylene Black

8

naphthenic oil

5

Zinc oxide

2.5

UV absorber

0.5

dicumyl peroxide

1.5

sulfur

0.3

Tetramethylthiuram disulfide

0.2

[0032] The acetylene carbon black in this example is provided by Hebei Tengfei Carbon Black Chemical Co., Ltd. The main performance parameters are: iodine absorption value ≥ 90g / kg, resistivity ≤ 2.5Ω·m. The ultraviolet absorber is ultraviolet absorber UV-12, provided by Shanghai Wenhua Chemical Pigment Co., Ltd., its molecular weight is 326, and its melting point is 48~49°C. EPDM rubber is J-4...

Embodiment 2

[0043] Table 2 shows the components and weight percentages of the material of a damping spacer rubber part for UHV transmission lines in this embodiment.

[0044] The material composition and percentage content of table 2 embodiment 2 rubber parts

[0045] Raw material name

Percentage %

EPDM

50

High wear-resistant carbon black

32

Acetylene Black

5

naphthenic oil

8

Zinc oxide

2.5

UV absorber

0.3

dicumyl peroxide

1.4

sulfur

0.5

Tetramethylthiuram disulfide

0.3

[0046] The manufacturers and performance parameters of each component in this implementation are the same as in Example 1, and the material formula of the above-mentioned UHV transmission line damping spacer rubber part is adopted in this embodiment, and the steps of its preparation method are:

[0047] (1) Masterbatch mixing:

[0048] Put EPDM rubber, zinc oxide, and ultraviolet absorber in an interna...

Embodiment 3

[0055] Table 3 shows the components and weight percentages of the material of the damping spacer rubber parts for UHV transmission lines in this embodiment.

[0056] The material composition and percentage content of table 3 embodiment 3 rubber parts

[0057] Raw material name

Percentage %

EPDM

52

High wear-resistant carbon black

30

Acetylene Black

7

naphthenic oil

5.6

Zinc oxide

3

UV absorber

0.7

dicumyl peroxide

1.0

sulfur

0.4

Tetramethylthiuram disulfide

0.3

[0058] The manufacturers and performance parameters of each component in this implementation are the same as in Example 1, and the material formula of the above-mentioned UHV transmission line damping spacer rubber part is adopted in this embodiment, and the steps of its preparation method are:

[0059] (1) Masterbatch mixing:

[0060] Put EPDM rubber, zinc oxide, and ultraviolet absorber in an inte...

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Abstract

The invention discloses a material of a rubber part of a damping spacer for an ultra-high voltage transmission line and a preparation method thereof, and belongs to the fields of rubber materials and the preparation method thereof. The material comprises the following components in percentages by weight: 50-55% of ethylene propylene diene rubber, 27-32% of high abrasion-resistant carbon black, 5-10% of acetylene carbon black, 5-8% of naphthenic oil, 2.5-3.5% of zinc oxide, 0.3-0.7% of ultraviolet light absorber, 1-1.5% of dicumyl peroxide, 0.2-0.5% of sulfur and 0.1-0.3% of tetramethylthiuram disulfide. The preparation method comprises the following preparation steps of mixing a master batch, sulphureting the master batch, forming and vulcanizing. The prepared rubber part of the damping spacer for the ultra-high voltage transmission line has the advantages of excellent physical and mechanical properties, excellent weather resistance, ozone resistance and ultraviolet radiation aging resistance performance, higher electrical conductivity, moderate damping property, high elasticity and low compression permanent deformation performance. The service life of a product can reach 25-30 years.

Description

technical field [0001] The invention belongs to the field of rubber materials and preparation methods thereof, and more specifically relates to a material based on EPDM rubber, which can be used for rubber parts of damping spacers for UHV transmission lines, and a preparation method thereof. Background technique [0002] In the construction of high-voltage transmission lines, the split conductors of the transmission line must be separated by spacers to effectively prevent each other from whipping. However, the split wires separated by the spacer will cause wire fatigue due to the vibration caused by the breeze and the shock of the span caused by the strong wind, the loosening of the spacer fastener, and the wear of the wire, which seriously threatens its safe operation. In actual application, damping and vibration reduction measures are taken between the spacer rod and the wire to control the amplitude of movement within the allowable range. The rubber part of the damping s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/16C08K13/02C08K3/04C08K5/01C08K3/22C08K5/14C08K3/06C08K5/40B29B7/28B29C35/02
CPCB29C35/02C08K3/04C08K3/06C08K3/22C08K5/14C08K5/40C08K13/02C08K2003/2296C08K2201/001C08K2201/014C08L2201/08C08L23/16
Inventor 徐海潮朱向来严明
Owner 南京金三力橡塑有限公司
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