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Cable sheath for high strength building and preparation method of cable sheath

A technology for cable sheathing and construction, which is applied in the field of high-strength construction cable sheathing and its preparation. It can solve the problems of endangering life and property safety, unreasonable ingredients and general insulation performance, etc., and achieves easy operation and aging resistance. Excellent, short burning distance effect

Inactive Publication Date: 2016-12-07
芜湖浩权建筑工程有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] As we all know, the cable sheath is a layer of rubber wrapped around the cable core to insulate and protect the inner conductor. The quality of the cable sheath depends on the insulation performance, fire resistance and mechanical properties of the sheath, while Due to the unreasonable matching of the traditional 105°C cable sheath, the insulation performance is average compared with other types of sheaths. After the sheath is put into actual production, it is prone to leakage or even breakdown by high voltage, resulting in sheath burning. damage or cause a fire, endangering the safety of people's lives and property

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0021] A preparation method for a high-strength construction cable sheath, comprising the steps of:

[0022] S1. Weigh a certain amount of 22-35 parts of polyvinyl fluoride resin, 15-25 parts of modified epoxy resin, 16-22 parts of methyl pentachlorostearate, 10-15 parts of hydrotalcite, and 15-22 parts of expanded graphite 10-20 parts of nitrile rubber, 11-15 parts of ethylene bis stearamide, 33-36 parts of chlorinated paraffin, 10-20 parts of carbon fiber, 3-9 parts of calcium stearate, 6-10 parts of accelerator The raw materials are added to a high-efficiency mixing mixer and fully mixed and stirred for 5-10 minutes to obtain a mixture;

[0023] S2. Add the mixture obtained in step S1 into a torque rheometer, and melt at a temperature of 150-250° C. for 5-10 minutes;

[0024] S3. Add 2-6 parts of antioxidant, 5-8 parts of flame retardant and 2-6 parts of plasticizer to the mixture obtained in step S2, first react at a temperature of 60-80°C for 15-20min, and then use 500- ...

Embodiment 1

[0026] S1. Weigh a certain amount of 22 parts of polyvinyl fluoride resin, 15 parts of modified epoxy resin, 16 parts of methyl pentachlorostearate, 10 parts of hydrotalcite, 15 parts of expanded graphite, 10 parts of nitrile rubber, ethylene Add 11 parts of bis-stearamide, 33 parts of chlorinated paraffin, 10 parts of carbon fiber, 3 parts of calcium stearate, and 6 parts of accelerator into a high-efficiency mixing mixer and fully mix and stir for 5 minutes to obtain a mixture;

[0027] S2. Add the mixture obtained in step S1 into a torque rheometer, and melt at a temperature of 150-250° C. for 5-10 minutes;

[0028] S3. Add 2-6 parts of antioxidant, 5-8 parts of flame retardant and 2-6 parts of plasticizer to the mixture obtained in step S2, first react at a temperature of 60-80°C for 15-20min, and then use 500- Stir quickly at a rate of 800r / min for 20-30min, then pour into a single-screw granulator for granulation; after cooling, the cable sheath is obtained.

Embodiment 2

[0030] S1. Weigh a certain amount of 27 parts of polyvinyl fluoride resin, 22 parts of modified epoxy resin, 18 parts of methyl pentachlorostearate, 12 parts of hydrotalcite, 18 parts of expanded graphite, 15 parts of nitrile rubber, ethylene Add 13 parts of bis-stearamide, 34 parts of chlorinated paraffin, 16 parts of carbon fiber, 5 parts of calcium stearate, and 7 parts of accelerator into a high-efficiency mixing mixer and fully mix and stir for 5-10 minutes to obtain a mixture;

[0031] S2. Add the mixture obtained in step S1 into a torque rheometer, and melt at a temperature of 150-250° C. for 5-10 minutes;

[0032] S3. Add 2-6 parts of antioxidant, 5-8 parts of flame retardant and 2-6 parts of plasticizer to the mixture obtained in step S2, first react at a temperature of 60-80°C for 15-20min, and then use 500- Stir quickly at a rate of 800r / min for 20-30min, then pour into a single-screw granulator for granulation; after cooling, the cable sheath is obtained.

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Abstract

The invention discloses a cable sheath for a high strength building and a preparation method of the cable sheath. The cable sheath comprises 22-35 parts of polyvinylfluoride resin, 15-25 parts of modified epoxy resin, 16-22 parts of methyl pentachlorostearate, 10-15 parts of hydrotalcite, 15-22 parts of exfoliated graphite, 10-20 parts of butadiene acrylonitrile rubber, 11-15 parts of ethylene bis stearamide, 33-36 parts of chlorcosane, 10-20 parts of carbon fibers, 3-9 parts of calcium stearate, 6-10 parts of an accelerant, 2-6 parts of an antioxidant, 5-8 parts of a fire retardant and 2-6 parts of a plastifier. The polyvinylfluoride resin and the butadiene acrylonitrile rubber are used as main bodies, and the modified epoxy resin, the methyl pentachlorostearate, the hydrotalcite, the exfoliated graphite, the ethylene bis stearamide, the chlorcosane, the carbon fibers and the calcium stearate are added, so that the prepared cable sheath material is good in fire retardance, short in combustion distance, and quick in self extinguishing time. The preparation method is simple in preparation technology and easy to operate.

Description

technical field [0001] The invention relates to the technical field of cable sheath production, in particular to a high-strength building cable sheath and a preparation method thereof. Background technique [0002] The cable jacket is a layer of rubber or rubber synthetic sleeve that protects the cable from damage caused by the natural environment and external factors, and can insulate to ensure that foreign objects are not damaged. Cables are the basic bridges for building power systems. They are distributed in various environmental conditions. Some areas are extremely cold, the temperature difference between day and night is large, and ultraviolet radiation is strong. In some areas, high temperature, heavy rainfall, and high temperature cause rapid aging of the sheath and long service life. Short, prone to cracking, and flammable, it poses a greater threat to people's lives. Although a variety of cable sheath materials have been prepared at present, they still cannot me...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L27/14C08L63/00C08L9/02C08L91/06C08K13/04C08K7/06C08K3/26C08K3/04C08K5/20C08K5/098H01B3/44H01B7/28
CPCY02A30/14C08L27/14C08L2201/08C08L2203/202C08L2205/035H01B3/445H01B7/28C08L63/00C08L9/02C08L91/06C08K13/04C08K7/06C08K3/26C08K3/04C08K5/20C08K5/098
Inventor 胡圣武
Owner 芜湖浩权建筑工程有限公司
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