Sheath rubber for wind electric power generation cable

A sheath and rubber technology, used in the rubber field, can solve the problems of loss of elasticity, cracking, and unsatisfactory elasticity, and achieve the effects of torsion resistance and resilience, strong twist fracture and resilience.

Active Publication Date: 2009-09-16
KAIKAI CABLE TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, most of the sheaths of wind power cables are made of natural rubber (NR), natural styrene-butadiene rubber (NR-SBR) binary compound, chlorinated polyethylene (CPE), chloroprene rubber (CR) and vulcanized butadiene rubber. Nitrile polyvinyl chloride compound (NBR-PVC), there are also some thermoplastic NBR-PVC compounds; NR and NR-SBR two kinds of rubber can meet the low temperature resistance, but the elasticity is not ideal at low temperature, and the wear resistance is still to be determined. The following types of materials are all polar polymers, and the order force between molecules increases rapidly as the temperature drops, and becomes stiff below -25°C, loses elasticity, and the cable is difficult to rotate and cracks, and cannot adapt to -50 ℃ and lower environmental requirements

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1—3

[0025] Embodiment 1-3: The sheath rubber for wind power generation cables is formed by mixing the following raw materials in parts by weight, see Table 1:

[0026] Table 1: Examples 1-3, wherein the material content is parts by weight:

[0027]

serial number

material name Example 1

(share) Example 2

(share) Example 3

(share) 1 Neoprene CR 45 50 65 2 Butadiene rubber BR 55 50 35 3 Vulcanizing agent TMTD 0.7 0.7 0.8 4 Accelerator CZ 1.9 1.9 2.1

[0028] 5 High wear-resistant carbon black TMTD 22 23 30 6 Gas-mixed carbon black 19 20 19 7 stearic acid 1.8 2.2 2.0 8 paraffin 10 12 14 9 Zinc oxide 8 8 8 10 talcum powder 23 23 23 11 Antiager D 2.3 2.5 2.6 12 sulfur 0.6 0.4 0.5 13 Accelerator 0.7 0.6 2.1

[0029] The mixing process step of the present invention is as follows:

[0030] 1. Natural mastication: Open ty...

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PUM

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Abstract

The invention provides a sheath rubber for wind electric power generation cable, belonging to the rubber technical field, comprising chloroprene rubber (CR), cis-butadiene rubber (BR) with high elasticity, good anti-wear property and anti low temperature property and other raw material. The sheath rubber will not obviously lose flexibility, elasticity and generate crack even though the outdoor temperature in cold area is -50 DEG C. The sheath rubber has features of torsion resistance, high rebound elasticity, strong torsional flexibility resistance and even twist fracture resistance.

Description

technical field [0001] The invention relates to the technical field of rubber, in particular to sheath rubber for wind power generation cables. Background technique [0002] At present, most of the sheaths of wind power cables are made of natural rubber (NR), natural styrene-butadiene rubber (NR-SBR) binary compound, chlorinated polyethylene (CPE), chloroprene rubber (CR) and vulcanized butadiene rubber. Nitrile polyvinyl chloride compound (NBR-PVC), there are also some thermoplastic NBR-PVC compounds; NR and NR-SBR two kinds of rubber can meet the low temperature resistance, but the elasticity is not ideal at low temperature, and the wear resistance is still to be determined. The following types of materials are all polar polymers, and the order force between molecules increases rapidly as the temperature drops, and becomes stiff below -25°C, loses elasticity, and the cable is difficult to rotate and cracks, and cannot adapt to -50 ℃ and lower environmental requirements. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L11/00C08L9/00C08K13/02
Inventor 余纪炎徐华胜
Owner KAIKAI CABLE TECH
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