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Electrical cable

A cable and electric conductor technology, applied in the field of rubber cables, can solve problems such as not considering the anti-aging performance of cables

Inactive Publication Date: 2002-05-15
ボレアリステクノロジーオイ
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, where solvent resistance (such as gasoline or oil) is required, the aging resistance of the cable is often not considered

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example

[0071] Ethylene-methyl acrylate-vinyltrimethoxysilane terpolymer was prepared by free-to-initiated high-pressure polymerization in a high-pressure tubular reactor. The resulting elastomeric terpolymer contained 9 mole percent (31 percent by weight) methyl acrylate, 1 percent by weight vinyltrimethoxysilane, and had an MFR 2.16 The melting temperature is 10g / 10min, the melting temperature is 71°C, the crystallinity is 7% by weight, the Shore A hardness is 53, and the softness is 4.2MPa according to the dynamic shear modulus (according to ISO 6721-2A, 23°C). The amount is 2.4MPa.

[0072] The terpolymer was mixed with dodecylbenzenesulfonic acid (silane condensation catalyst) in a Brabender kneader at a temperature of 120° C. and a rotation speed of 40 rpm for 10 minutes. The composition was then molded into a 2 mm thick sheet and soaked in a water bath at a temperature of 60°C for 18 hours. The crosslinked sheet was removed from the water bath and the heat set value of the cr...

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PUM

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Abstract

A cable comprising an electrical conductor with insulating and protecting layers surrounding the conductor is described. The cable is characterised in that at least one layer selected from said insulating and protecting layers consists of a crosslinked ethylene-alkyl (meth)acrylate-unsaturated silane terpolymer composition wherein the alkyl (meth)acrylate comonomer comprises more than 5 mole % and the terpolymer composition has a tensile modulus, determined according to ISO 527-2 (1 mm / min) of less than 100 MPa. Preferably, the crosslinked ethylene-alkyl (meth)acrylate polymer is a moisture curable ethylene-alkyl (meth)acrylate-vinyl trialkoxysilane terpolymer, wherein the trialkoxysilan termonomer comprises 0.2-5% by weight of the polymer composition. The polymer composition may include from 0 up to 50% by weight of a plasticiser, up to 60% by weight of a filler, and up to 10% by weight of an additive.

Description

technical field [0001] The present invention relates to cables, and more particularly to a rubber cable. technical background [0002] Rubber cables are flexible cables that have a conductor surrounded by an insulation layer and a jacket. Several insulated conductors can be enclosed by a sheath. Such rubber cables are generally referred to as low or medium voltage cables, ie they are used up to about 10 kV. The insulating layer and / or the jacket layer are usually made of natural rubber (NR) or ethylene-propylene rubber (EPR), such as EPDM or EPM. [0003] There are several serious drawbacks associated with rubber cables. Since, the fact that they include a rubber component means that they are manufactured according to conventional rubber processing methods. This includes handling the powdered raw material, processing it in specialized rubber compounding equipment, and curing the cables through a vulcanization process involving sulfur or peroxide curing agents. In additi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B3/46
CPCH01B3/46Y10T428/2933Y10T428/2962Y10T428/294Y10T428/2942Y10T428/31663Y10T428/31692Y10T428/31699Y10T428/31678
Inventor 汉斯·伊克林德比尔·加斯塔夫森奥拉·费格莱尔
Owner ボレアリステクノロジーオイ
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