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Preparation technique of cable protecting jacket flame-retardant material

A technology for flame retardant materials and cable protection, applied in circuits, electrical components, plastic/resin/wax insulators, etc., can solve problems such as lack of high temperature resistance and flame retardancy, and achieve high cold and frost resistance, good practicability, and flame retardant performance Good results

Inactive Publication Date: 2017-06-13
ANHUI DEYUAN CABLE GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the protective sheath materials currently used for cables generally only simply protect the wire core, and are still lacking in high temperature resistance and flame retardancy.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] A preparation process of a flame-retardant material for a cable protective sheath, comprising the following steps:

[0050] 1) Add 150g of high-density polyethylene, 2g of dioctyl phthalate, and 0.2g of 6-ethoxy-2,2,4-trimethyl-1,2-dihydroquinoline into the mixer, Spray 5g of polyethylene glycol into the agitator while heating and stirring, the heating temperature is 38°C, and stir for 2.5h to form mixture A;

[0051] 2) Add 0.4g of antimony oxide, 0.8g of 1,2-cyclohexanedicarboxylic acid, and 1g of montmorillonite to the above-mentioned mixer, and raise the heating temperature to 70°C, and continue stirring until drying to form a mixture B;

[0052] 3) Crushing and sieving the above mixture B to form mixture C;

[0053] 4) Mix the mixture C obtained above with 0.5 g of azodicarbonamide, 1 g of heavy carbonic acid, and 0.2 g of talcum powder, and then put it into an internal mixer for 2.5 hours of mixing at a temperature of 70° C., fully mixing evenly, Formation of mi...

Embodiment 2

[0058] A preparation process of a flame-retardant material for a cable protective sheath, comprising the following steps:

[0059] 1) Add 150g of high-density polyethylene, 3g of dioctyl phthalate, 0.4g of 6-ethoxy-2,2,4-trimethyl-1,2-dihydroquinoline into the mixer, Spray 7g of polyethylene glycol into the agitator while heating and stirring, the heating temperature is 40°C, and stir for 3h to form mixture A;

[0060] 2) Add 0.5 g of antimony oxide, 1 g of 1,2-cyclohexanedicarboxylic acid, and 2 g of montmorillonite to the above-mentioned mixer, and raise the heating temperature to 71°C, and continue stirring until drying to form a mixture B;

[0061] 3) Crushing and sieving the above mixture B to form mixture C;

[0062] 4) Mix the mixture C obtained above with 0.6g of azodicarbonamide, 1.5g of heavy carbonic acid, and 0.4g of talcum powder, then put it into an internal mixer for 3 hours of mixing at a temperature of 71°C, and fully mix evenly. Formation of mixture D;

[...

Embodiment 3

[0067] A preparation process of a flame-retardant material for a cable protective sheath, comprising the following steps:

[0068] 1) Add 150g of high-density polyethylene, 4g of dioctyl phthalate, and 0.6g of 6-ethoxy-2,2,4-trimethyl-1,2-dihydroquinoline into the mixer, Spray 9 g of polyethylene glycol into the agitator while heating and stirring, the heating temperature is 42°C, and stir for 3.5 hours to form a mixture A;

[0069] 2) Add 0.6g of antimony oxide, 1.2g of 1,2-cyclohexanedicarboxylic acid, and 3g of montmorillonite to the above-mentioned mixer, and raise the heating temperature to 72°C, and continue stirring until drying to form a mixture B;

[0070] 3) Crushing and sieving the above mixture B to form mixture C;

[0071] 4) Mix the mixture C obtained above with 0.7g of azodicarbonamide, 2g of heavy carbonic acid, and 0.6g of talcum powder, then put it into an internal mixer for 3.5h of mixing at a temperature of 72°C, and fully mix evenly. Formation of mixture...

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PUM

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Abstract

The invention discloses a preparation technique of a cable protecting jacket flame-retardant material. The technique comprises the following steps: 1) spraying 150g of high-density polyethylene, 2-4g of dioctyl phthalate and 0.2-0.6g of 6-ethoxy-2,2,4-trimethyl-1,2-dihydroquinoline into 5-9g of polyethyleneglycol, heating and stirring; 2) adding 0.4-0.6g of antimony oxide, 0.8-1.2g of 1,2-cyclohexanedicarboxylic acid and 1-3g of montmorillonite into the stirrer, continuing stirring until the mixture is dried; 3) crushing and screening 4) mixing the mixture C with 0.5-0.7g of azobisformamide, 1-2g of ground calcium carbonate and 0.2-0.6g of talcum powder, adding into a Banbury mixer, and sufficiently compounding uniformly at 70-72 DEG C for 2.5-3.5 hours to form a mixture D; 5) drying; 6) crushing and screening; and 7) granulating, and carrying out pressure molding. The preparation method is scientific and reasonable; and the prepared flame-retardant material has the advantages of excellent high-temperature resistance, excellent flame retardancy, mechanical damage resistance, higher cold and freeze resistance and the like, can effectively protect the cable, and has favorable practicality.

Description

technical field [0001] The invention belongs to the technical field of cable materials, and in particular relates to a preparation process of a flame-retardant material for a cable protective sheath. Background technique [0002] Cables are usually twisted by several or groups of wires [at least two in each group]. Commonly used insulating materials in cables are oil-impregnated paper, polyvinyl chloride, polyethylene, cross-linked polyethylene, rubber, etc. Cables are often classified by insulating materials, such as oil-impregnated paper insulated cables, PVC cables, XLPE cables, etc. Out of safety considerations, people gradually realize the use of cables made of high temperature resistant materials. At present, the cables used in this field generally use halogen-free flame-retardant cables and silane cross-linked cables. Ethylene-vinyl acetate copolymer is the most used material in halogen-free flame-retardant cables, semiconductor shielded cables and two-step silane c...

Claims

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Application Information

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IPC IPC(8): C08L23/06C08L71/02C08K13/02C08K5/3437C08K3/22C08K5/092C08K3/34C08K3/26H01B3/44
CPCC08L23/06C08L2201/02C08L2201/08C08L2203/202C08L2207/062H01B3/441C08L71/02C08K13/02C08K5/3437C08K3/2279C08K5/092C08K3/346C08K3/34C08K2003/265
Inventor 周光亚周光辉
Owner ANHUI DEYUAN CABLE GRP
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