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

A technology of cable sheath and formula, which is applied in the field of rubber sheath flame retardant cable sheath material formula and its manufacture, which can solve the problems of expensive neoprene rubber and increase the production cost of manufacturers, and achieve the effect of promoting vulcanization and making it difficult for workers to operate Small, enhanced softness and abrasion resistance effects

Inactive Publication Date: 2008-12-03
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 o

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] Formula 1: its parts by weight are: neoprene rubber 22.5, chlorinated polyethylene 22.5, zinc oxide 1.5, magnesium oxide 1.8, ethylene thiourea 0.7, dibenzothiazole disulfide 0.9, 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-reinforcing 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 one are as follows:

[0041] 1. Plasticizing:

[0042] (1), the neoprene rubber is placed in the internal mixer to be masticated separately; the temperature inside the machine is controlled at 75° C., and the time is 8 minutes. After cooling the masticated neoprene rubber to normal temperature, put it for standby;

[0043] (2), put the chlorinated polyethylene in the internal mixer to masticate separately; the tem...

Embodiment 2

[0063] Formula 2: Its parts by weight are: 15.0 chloroprene rubber, 15.0 chlorinated polyethylene, 0.5 zinc oxide, 0.5 magnesium oxide, 0.2 ethylene thiourea, 0.5 dibenzothiazole disulfide, and 0.5 tetramethylthiuram disulfide 0.1, N-phenyl-2-naphthylamine 0.5, stearic acid 0.5, paraffin 0.5, dioctyl phthalate 1.0, high wear-resistant carbon black 5.0, semi-reinforcing 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), masticate for another 3 minutes, then in the mixing step (2), knead for 2 minu...

Embodiment 3

[0073] Material formula three for flame-retardant cable sheath: its parts by weight are: neoprene rubber 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 3.5, dioctyl phthalate 5.0, high wear-resistant carbon black 15.0, semi-reinforcing carbon black 15.0, calcium carbonate 10.0, decabromodiphenyl ether 10.0, antimony trioxide 3.0, aluminum hydroxide 8.0.

[0074] The process steps for manufacturing the flame-retardant cable sheath according to the formula three are the same as those in the first embodiment. 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), masticate for another 5 minutes,

[0077] 3. Thinning and calendering step (1) thin...

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PUM

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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 15 parts 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 formula and a manufacturing method thereof. Background technique: [0002] Mine-used rubber-sheathed soft cables are mainly used in coal mines for underground power lines and power connection lines for various coal mining machinery and equipment. The conventional technical index requirements for the physical properties of the insulation, and there are special requirements for its flame retardancy. At the same time, due to the frequent movement of the cable, it also has 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 mainly uses neoprene as the main raw material. At the same time, various chemical compounding agents are added to modify neoprene. Next, the cost of production can be reduced by reducing the...

Claims

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Application Information

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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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