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Tear-resistant cable sheath material and preparation method thereof

A cable sheath material and raw material technology, applied in the direction of circuits, electrical components, plastic/resin/wax insulators, etc., can solve the problem that the thermal stability of tear strength cannot meet the actual needs, the delay and inconvenience of power transmission work, and the loss of protection Wire and cable and other issues, to achieve the effect of large-scale mass production, low production cost, and excellent thermal stability

Inactive Publication Date: 2017-10-13
HEFEI ZEJUN ELECTRICAL EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Wires and cables are used to transmit and distribute high-power electric energy in the main line of the power system. They are often used in urban underground power grids, outgoing lines of power stations, internal power supply of industrial and mining enterprises, and underwater transmission lines across rivers and seas. With the rapid development of the wire and cable industry, the number of wire and cable sheathing materials continues to increase, and the overall technical level of the sheathing material industry is greatly improving. The tear strength, toughness, and thermal stability of the existing sheathing materials are not enough. Due to the actual demand, it is prone to hot and brittle tearing, and loses the function of protecting wires and cables, which will lead to delays and inconveniences in power transmission work, and even cause safety hazards, so it needs to be solved urgently

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A tear-resistant cable sheath material, the following raw materials are weighed for later use: 60kg of modified PVC resin, 15kg of isoprene-butadiene rubber, 15kg of polyphenylene ether resin, 10kg of Zuoyun clay, 5kg of polyacrylonitrile fiber, Zinc stearate 2kg, dibutyl maleate 4kg, chlorinated paraffin 6kg, lead-free stabilizer 1kg, coupling agent 1kg, accelerator 1kg and antioxidant 1kg;

[0025] The above-mentioned modified PVC resin is prepared from the following ingredients: 80kg of PVC resin powder, 30kg of nano-magnesium oxide, and 40kg of absolute ethanol; the preparation method is to first add PVC resin powder to absolute ethanol to dissolve and stir for 1 hour, and then add nano-oxidized Magnesium, sonicated for 1 hour to form a mixed solution, then placed in an oven at 85°C for 40 minutes, then pre-cured at 105°C for 30 minutes, and finally placed in a hot press for 80 minutes, the curing temperature was 130°C, and the curing pressure It is 1.2MPa, and the ...

Embodiment 2

[0034] A tear-resistant cable sheath material, the following raw materials are weighed for later use: 70kg of modified PVC resin, 20kg of isoprene-butadiene rubber, 20kg of polyphenylene ether resin, 15kg of Zuoyun clay, 10kg of polyacrylonitrile fiber, Zinc stearate 4kg, dibutyl maleate 6kg, chlorinated paraffin 8kg, lead-free stabilizer 3kg, coupling agent 3kg, accelerator 3kg and antioxidant 3kg;

[0035] The above-mentioned modified PVC resin is prepared from the following components: 80kg of PVC resin powder, 30kg of nano-magnesium oxide, and 40kg of absolute ethanol; Magnesium oxide, sonicated for 1.5 hours to form a mixed solution, then placed in a 90°C oven for 45 minutes, then pre-cured at 110°C for 35 minutes, and finally placed in a hot press for 100 minutes, and the curing temperature was 140°C. The curing pressure is 1.4 MPa, and the modified PVC resin required by the raw material of the present invention can be obtained after curing.

[0036] Wherein, the above-...

Embodiment 3

[0044]A tear-resistant cable sheath material, the following raw materials are weighed for later use: 80kg of modified PVC resin, 25kg of isoprene-butadiene rubber, 25kg of polyphenylene ether resin, 20kg of Zuoyun clay, 15kg of polyacrylonitrile fiber, Zinc stearate 6kg, dibutyl maleate 8kg, chlorinated paraffin 10kg, lead-free stabilizer 5kg, coupling agent 5kg, accelerator 5kg and antioxidant 5kg;

[0045] The above-mentioned modified PVC resin is prepared from the following ingredients: 80kg of PVC resin powder, 30kg of nano-magnesium oxide, and 40kg of absolute ethanol; the preparation method is to dissolve and stir the PVC resin powder in absolute ethanol for 2 hours, and then add nano-oxidized Magnesium, sonicated for 2 hours to form a mixed solution, then dried in an oven at 95°C for 50 minutes, then pre-cured at 115°C for 40 minutes, and finally placed in a hot press for 120 minutes, the curing temperature was 150°C, and the curing pressure It is 1.6MPa, and the modifi...

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PUM

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Abstract

The invention provides a tear-resistant cable sheath material and a preparation method thereof, relating to the technical field of wires and cables. The sheath material comprises the following raw materials: a modified PVC resin, isoprene-butadiene rubber, a polyphenyl ether resin, Zuoyun clay, polyacrylonitrile fibers, zinc stearate, dibutyl maleate, chlorinated paraffin, a lead-free stabilizer, a coupling agent, an accelerator and an antioxidant. The preparation method comprises the following steps: mixing the raw materials, and performing granulation. The cable sheath material has the advantages of simple preparation technique and low volume weight, and is convenient for transportation and processing. The prepared finished cable sheath has the advantages of higher tear strength, higher toughness, better high-temperature resistance, excellent overall performance and long service life, can better protect the wires and cables, and is suitable for popularization and application.

Description

technical field [0001] The invention relates to the technical field of wires and cables, in particular to a tear-resistant cable sheathing material and a preparation method thereof. Background technique [0002] Wires and cables are used to transmit and distribute high-power electric energy in the main line of the power system. They are often used in urban underground power grids, outgoing lines of power stations, internal power supply of industrial and mining enterprises, and underwater transmission lines across rivers and seas. With the rapid development of the wire and cable industry, the number of wire and cable sheathing materials continues to increase, and the overall technical level of the sheathing material industry is greatly improving. The tear strength, toughness, and thermal stability of the existing sheathing materials are not enough. Due to the actual demand, it is prone to hot and brittle tearing, and loses the function of protecting wires and cables, which wi...

Claims

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Application Information

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IPC IPC(8): C08L27/06C08L9/00C08L71/12C08L33/20C08K13/02C08K3/34C08K5/098C08K5/11C08K3/22B29C47/92H01B3/44B29C48/92
CPCB29C48/92B29C2948/92704C08K2003/222C08K2201/011C08L27/06C08L2201/08C08L2203/202C08L2205/035C08L2205/16H01B3/443C08L9/00C08L71/12C08L33/20C08K13/02C08K3/346C08K5/098C08K5/11C08K3/22
Inventor 徐仙峰
Owner HEFEI ZEJUN ELECTRICAL EQUIP CO LTD
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