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Combination of chlorinated polythylene insulating material

A technology of chlorinated polyethylene and insulating materials, which is applied in the direction of insulated conductors, insulated cables, organic insulators, etc., can solve the problems of accelerated insulation aging, rough surface, and foaming in product quality, and achieve wide application occasions and improved comprehensive performance , the effect of good mechanical properties

Active Publication Date: 2008-10-22
四川川东电缆有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the existing rubber insulated fixed laying wires with rated voltage of 300 / 500V are equipped with paraffin, asphalt, fiber or sheath on the outside. ), heat, ozone and other factors, generally after 3-4 years, it will gradually fall off due to aging, which not only further pollutes the environment, but also completely exposes the insulation, thereby accelerating the aging of the insulation and affecting the service life and safety of the wire.
In addition, the appearance of its products can only be black or dark, and the surface is rough, which is not conducive to phase separation and pipe laying
[0003] At present, the main problem in the processing of insulated wires is the formulation of CPE series. Regardless of CPE insulating rubber or sheath rubber, there are problems with immature formulations in the specific applications of various domestic manufacturers, resulting in blistering and blistering in product quality. Unqualified problems such as holes and breaks, so that not only can not use a large number of CPE, but also increase the production cost due to the increase of waste products

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0060] Take the following raw materials: 60 kg of CPE135B, 40 kg of EPDM4045, 8 kg of composite rare earth stabilizer REC-LS, 6 kg of active agent RA, 5 kg of thiadiazole 1680, 2 kg of accelerator VOR240, 6 kg of insulation modifier LR, 1 Kg of surface treatment agent ZnSt, 3 kg of processing aid WB222, 3 kg of microcrystalline paraffin, 2 kg of antioxidant RD, 20 kg of trioctyl TOTM, 20 kg of nano-high active clay, 50 kg of white talc, and 50 kg of nano-calcium carbonate.

Embodiment 2

[0062] Take the following raw materials: 60 kg CPE135B, 40 kg EPDM4045, 5 kg compound rare earth stabilizer REC-LS, 5 kg active agent RA, 3 kg thiadiazole 1680, 1.5 kg accelerator VOR240, 5 kg insulation modifier LR, 0.5 kg 1 kg of surface treatment agent ZnSt, 2 kg of processing aid WB222, 2 kg of microcrystalline paraffin, 1 kg of antioxidant RD, 15 kg of trioctyl TOTM, 15 kg of nano-high active clay, 40 kg of white talc, and 40 kg of nano-calcium carbonate.

Embodiment 3

[0064] Take the following raw materials: 60 kg of CPE135B, 40 kg of EPDM4045, 7 kg of composite rare earth stabilizer REC-LS, 5.5 kg of active agent RA, 4 kg of thiadiazole 1680, 1.8 kg of accelerator VOR240, 5.5 kg of insulation modifier LR, 0.8 Kg of surface treatment agent ZnSt, 2.5 kg of processing aid WB222, 2.5 kg of microcrystalline paraffin, 1.5 kg of antioxidant RD, 18 kg of trioctyl TOTM, 18 kg of nano-highly active clay, 45 kg of white talc, and 45 kg of nano-calcium carbonate.

[0065] Composite rare earth stabilizer REC-LS is produced by Qingdao Laosu Building Materials Group Company.

[0066] Embodiment 1~3 adopts following method to process:

[0067] Processing and preparation method of the present invention

[0068] Mixing process: CPE135B and EPDM4045 are respectively masticated on a ￠400 type open mill for use, weighed according to the requirements of the formula components, and fully mixed on a rubber mixer according to a certain feeding sequence, mixing ti...

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Abstract

The invention discloses a chlorinated polyethylene insulating material combination. The compositions in portion by weight of the combination are: 60 portions of chlorinated polyethylene, 40 portions of EPDM, 5 to 8 portions of composite rare earth stabilizing agent REC-LS, 3 to 5 portions of thiadiazoles derivate vulcanizing agent and 1.5 to 2 portions of aldehyde-amine condensation compound accelerating agent. The chlorinated polyethylene insulating material combination meets the requirements of a low-voltage rubber-insulated wire for insulation property, and ensures that the wire has performances such as weathering resistance, cold resistance, oil resistance, high temperature (105 DEG C) resistance, acid-alkali resistance, corrosion resistance, ozone resistance, low cost and free color matching; moreover, the combination finds out in principle the reasons of the disqualification problems such as blistering, perforation and crevasse of a cable product, and solves the problems from the formula stage.

Description

technical field [0001] The invention relates to the field of wire and cable processing, in particular, the invention is a chlorinated polyethylene insulating material composition. Background technique [0002] At present, the existing rubber insulated fixed laying wires with rated voltage of 300 / 500V are equipped with paraffin, asphalt, fiber or sheath on the outside. ), heat, ozone and other factors, generally after 3-4 years, it will gradually fall off due to aging, which not only further pollutes the environment, but also completely exposes the insulation, thereby accelerating the aging of the insulation and affecting the service life and safety of the wire. In addition, the appearance of its products can only be black or dark, and the surface is rough, which is not conducive to phase separation and pipe laying. [0003] At present, the main problem in the processing of insulated wires is the formulation of CPE series. Regardless of CPE insulating rubber or sheath rubber...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B3/44H01B7/28C08L23/28C08K5/47C08K5/17
Inventor 李永辉李章学邓一权
Owner 四川川东电缆有限责任公司
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