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Jacket formula for rubber jacketed flame-proof cable and production method thereof

A cable sheathing and rubber sheathing technology, used in cable/conductor manufacturing, insulated cables, cables, etc., can solve the problems of increasing the production cost of manufacturers and the high price of neoprene rubber, achieving less difficulty for workers to operate, and promoting the effect of vulcanization , the effect of enhancing the flame retardant effect

Inactive Publication Date: 2010-09-08
JIANGXI CABLE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

my country is a country with scarce neoprene resources. At present, the domestically produced neoprene is difficult to meet the market demand. To meet the large demand of the market, it mainly depends on imports. Due to the serious shortage of neoprene, the price of neoprene is expensive, thus Increased production costs for manufacturers

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] Formula 1: Its parts by weight are: 22.5 neoprene, 22.5 chlorinated polyethylene, 1.5 zinc oxide, 1.8 magnesium oxide, 0.7 ethylene thiourea, 0.9 dibenzothiazole disulfide, tetramethylthiuram disulfide 0.2, N-phenyl-2-naphthylamine 0.9, stearic acid 0.9, paraffin 1.3, dioctyl phthalate 1.8 High wear-resistant carbon black 9.0, semi-reinforced carbon black 9.0, calcium carbonate 7.9, decabromodi Phenyl ether 2.8, antimony trioxide 1.8, aluminum hydroxide 4.5.

[0040] The process steps of manufacturing flame retardant cable sheath according to formula 1 are as follows:

[0041] 1. Plasticizing:

[0042] (1) Place the chloroprene rubber in an internal mixer for separate plasticization; the temperature in the machine is controlled at 75°C, and the time is 8 minutes, and the plasticized chloroprene rubber is cooled to normal temperature, and then placed for standby;

[0043] (2), place the chlorinated polyethylene in the internal mixer for separate plasticization; the tem...

Embodiment 2

[0063] Formula 2: Its parts by weight are: neoprene 15.0, chlorinated polyethylene 15.0, zinc oxide 0.5, magnesium oxide 0.5, ethylene thiourea 0.2, dibenzothiazole disulfide 0.5, tetramethylthiuram disulfide 0.1, N-phenyl-2-naphthylamine 0.5, stearic acid 0.5, paraffin wax 0.5, dioctyl phthalate 1.0, high wear-resistant carbon black 5.0, semi-reinforced carbon black 5.0, calcium carbonate 3.5, decabromo Diphenyl ether 5.0, antimony trioxide 1.5, aluminum hydroxide 1.0.

[0064] The process steps of manufacturing the flame retardant cable sheath according to the formula two are the same as those in the first embodiment. the difference is,

[0065] 1. The mixing time in the mixing step (2) is 6 minutes, the temperature in the mixing step (2) is 90°C, the temperature in the mixing step (3) is 55°C, and the temperature in the mixing step (4) is 55°C,

[0066] 2. In the mixing step (2), plasticizing for 3 minutes, in the mixing step (2), mixing for 2 minutes, and the temperature...

Embodiment 3

[0073] Material formula 3 for flame retardant cable sheath: its parts by weight are: neoprene 30.0, chlorinated polyethylene 30.0, zinc oxide 3.0, magnesium oxide 3.0, ethylene thiourea 0.8, dibenzothiazole disulfide 2.0, Tetramethylthiuram disulfide 0.5, N-phenyl-2-naphthylamine 2.0, stearic acid 2.0, paraffin wax 3.5, dioctyl phthalate 5.0, high wear-resistant carbon black 15.0, semi-reinforced carbon black 15.0, calcium carbonate 10.0, decabromodiphenyl ether 10.0, antimony trioxide 3.0, aluminum hydroxide 8.0.

[0074] The process steps of making flame retardant cable sheath according to formula 3 are the same as in Example -. the difference is,

[0075] 1. The mixing time in the mixing step (2) is 10 minutes, the temperature in the mixing step (3) is 60°C, and the temperature in the mixing step (4) is 60°C,

[0076] 2. In the mixing step (2), plasticizing for 5 minutes,

[0077] 3. In the thin pass and calendering step (1), thin pass three times, the thickness is 1.1mm...

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Abstract

The invention discloses a fire-retardant cable sheath material formulation and the preparation method thereof. The formulation comprises, by weight parts, 15 to 30 parts of chloroprene rubber, 15 to 30 parts of chlorinated polyethylene, 0.5 to 3.0 parts of zinc oxide, 0.5 to 3.0 parts of magnesium oxide, 0.2 to 1.0 parts of ethylene thiourea, 0.5 to 2.0 parts of dibenzothiazyl disulfide, 0.1 to 0.5 parts of tetramethylthiuram disulfide, 0.5 to 2.0 parts of N-phenyl-2-naphthylamine, 0.5 to 2.0 parts of stearic acid, 0.5 to 3.5 parts of paraffin, 1.0 to 5.0 parts of dioctyl phthalate, 5.0 to 15parts of carbon black with high abrasion resistance, 5.0 to 15 parts of semi-reinforced carbon black, 3.5 to 10 parts of calcium carbonate, 2.5 to 8 parts of bis(pentabromophenyl) ether, 1.0 to 3.0 parts of antimony trioxide, and 1.0 to 8.0 parts of aluminum hydroxide. The preparation method mainly comprises the following steps: plasticating, blending, mixing, thin-passing and calendaring and extruding the sheath.

Description

Technical field: [0001] The invention relates to a flame retardant cable, in particular to a rubber sheath flame retardant cable sheath material formulation and a manufacturing method thereof. Background technique: [0002] Mining rubber sheathed flexible cables are mainly used in coal mines for underground power supply lines and power supply connection lines for various coal mining machinery and equipment. Conventional technical index requirements for insulation physical properties, and special requirements for its flame retardant properties. At the same time, due to the frequent movement of cables, there are also high requirements for its flexibility and tear resistance. [0003] At present, the sheath material used for rubber-sheathed flame-retardant cables in the wire and cable industry is mainly chloroprene rubber as the main raw material, and various chemical compounding agents are added to modify the chloroprene rubber. In order to reduce the production cost by reduc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L11/00C08L23/28C08K13/02C08K5/06C08K3/22C08K5/40C08K5/405H01B3/28H01B3/44H01B7/295H01B13/22B29B7/00B29B11/12B29C70/70B29C35/02B29L31/34
Inventor 李礼会
Owner JIANGXI CABLE
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