A kind of low temperature resistant cable sheath material and preparation method thereof

A technology for cable sheathing and low temperature resistance, which is applied to rubber insulators, organic insulators, etc. It can solve the problems that restrict the use and fracture of ordinary cable sheath materials, achieve low temperature embrittlement and improve low temperature resistance.

Inactive Publication Date: 2017-01-11
江苏古沙农业科技发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the low temperature area, due to the low temperature, it poses a greater challenge to the cable sheath material. If the low temperature embrittlement temperature of the cable sheath material is too high, it will break at low temperature during use. The above phenomenon Occurrence restricts the use of ordinary cable sheathing materials in low temperature environment, therefore, the development of low temperature resistant cable sheathing materials is very necessary

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] Step 1: Weigh 40 parts of chloroprene rubber, 11 parts of hydrogenated nitrile rubber, 9 parts of polyvinyl alcohol, 11 parts of polyketone resin, and 7 parts of polychlorotrifluoroethylene, and set the temperature of the internal mixer to 85 °C , put each composition of step 1 into the internal mixer, and mix in the internal mixer, and the mixing time is 15min;

[0045] Step 2: Add 7 parts of calcium metasilicate, 5 parts of antimony trioxide, 5 parts of aluminum hydroxide, 4 parts of paraffin, and 4 parts of carbon black to the mixed cable sheath material, and then mix them in the internal mixer Medium mixing for 8 minutes;

[0046] Step 3: Add 6 parts of bis(dioctyloxypyrophosphate)ethylene titanate and 2.5 parts of antioxidant 1098 to the kneaded cable sheath material, and knead for 5 minutes;

[0047] Step 4: kneading the mixture, pressing into tablets, cutting into strips and cooling after kneading, to prepare a low temperature resistant cable sheath material.

Embodiment 2

[0049] Step 1: Weigh 22 parts of neoprene rubber, 18 parts of hydrogenated nitrile rubber, 4 parts of polyvinyl alcohol, 5 parts of polyketone resin, and 12 parts of polychlorotrifluoroethylene, and set the temperature of the internal mixer to 70 °C , put each composition of step 1 into the internal mixer, and mix in the internal mixer, and the mixing time is 6min;

[0050] Step 2: Add 4 parts of calcium metasilicate, 3 parts of antimony trioxide, 10 parts of aluminum hydroxide, 9 parts of paraffin, and 7 parts of carbon black to the kneaded cable sheathing material. Medium mixing 4min;

[0051] Step 3: Add 3 parts of bis(dioctyloxypyrophosphate)ethylene titanate and 5 parts of antioxidant 1098 to the kneaded cable sheath material, and knead for another 3 minutes;

[0052] Step 4: kneading the mixture, pressing into tablets, cutting into strips and cooling after kneading, to prepare a low temperature resistant cable sheath material.

Embodiment 3

[0054] Step 1: Weigh 26 parts of neoprene rubber, 13 parts of hydrogenated nitrile rubber, 8 parts of polyvinyl alcohol, 7 parts of polyketone resin, and 9 parts of polychlorotrifluoroethylene, and set the temperature of the internal mixer to 85 °C , put each composition of step 1 into the internal mixer, and mix in the internal mixer, and the mixing time is 15min;

[0055] Step 2: Add 6 parts of calcium metasilicate, 4 parts of antimony trioxide, 8 parts of aluminum hydroxide, 5 parts of paraffin, and 5 parts of carbon black to the mixed cable sheath material, and then mix them in the internal mixer Medium mixing for 8 minutes;

[0056] Step 3: Add 5 parts of bis(dioctyloxypyrophosphate)ethylene titanate and 4.5 parts of antioxidant 1098 to the kneaded cable sheath material, and knead for 5 minutes;

[0057] Step 4: kneading the mixture, pressing into tablets, cutting into strips and cooling after kneading, to prepare a low temperature resistant cable sheath material.

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PUM

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Abstract

The invention discloses a low-temperature-resistant cable sheath material and a preparation method thereof. The cable sheath material comprises, in parts by weight, 22-40 parts of chloroprene rubber, 11-18 parts of hydrogenated nitrile rubber, 4-9 parts of polyvinyl alcohol, 5-11 parts of polyketone resin, 7-12 parts of polytrifluorochloroethylene, 4-7 parts of calcium silicate, 3-5 parts of diantimony trioxide, 5-10 parts of aluminium hydroxide, 4-9 parts of paraffin, 4-7 parts of carbon black, 3-6 parts of di(dioctylpyrophosphato) ethylene titanate, and 2.5-5 parts of an anti-oxidant 1098. The preparation method for the low-temperature-resistant cable sheath material comprises step-by-step banburying, open milling, tabletting, slitting, cooling and other steps, and the prepared cable sheath material possesses advantages of high tensile strength, good flame retardation effect and excellent low-temperature resistant effect, and is applicable to extremely-low-temperature environment.

Description

technical field [0001] The invention belongs to the field of cable sheath materials, and relates to a cable sheath material and a preparation method thereof, in particular to a low temperature resistant cable sheath material and a preparation method thereof. Background technique [0002] The most commonly used sheath material for outdoor cables is black linear low-density polyethylene. Its density is similar to LDPE, but its strength is comparable to HDPE, which can provide the sheath with better mechanical properties and resistance to friction, chemicals, moisture and different environmental conditions. performance. The UV-resistant black HDPE withstands climatic stresses such as extremely high temperatures and intense UV rays. When emphasizing the fire safety of cables, low-smoke, halogen-free and flame-retardant materials should be used. In leaky cables, in order to reduce the spread of fire, a fire-resistant and flame-retardant tape can be used between the outer conduc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L11/00C08L15/00C08L29/04C08L73/00C08L27/12C08K13/02C08K3/34C08K3/22C08K3/04H01B3/28
Inventor 邹黎清
Owner 江苏古沙农业科技发展有限公司
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