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Tensile cable sheath material and preparation method thereof

A cable sheath and anti-stretching technology, which is applied in the field of stretch-resistant cable sheath materials and preparations, can solve the problems that the tensile strength cannot meet market demand, and achieve excellent tensile performance and impact embrittlement temperature Effect

Inactive Publication Date: 2016-09-21
ANHUI HUAXING CABLE GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, with the expansion of wire and cable applications, the requirements for polyethylene cable sheathing materials continue to increase, and the tensile strength of general polyethylene cable sheathing materials currently on the market can no longer meet market demand.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] 44 parts of ethylene-vinyl acetate copolymer, 4 parts of dibutyltin maleate polymer, 42 parts of polyethylene, 2 parts of allyl acrylate, 1.6 parts of N,N'-di(2-naphthyl)-p-phenylenediamine, 2 parts of epoxy butyl stearate, 2.4 parts of tetrahydrofuran homopolyether, 1.8 parts of 2-nitroaniline-4-sulfonic acid sodium salt, 1.3 parts of 8-hydroxy-1,3,6-trisulfonic acid pyrene, 3 parts of triethoxysilane, 0.6 part of sorbitan tristearate, 0.3 part of magnesium stearate, 5 parts of light calcium carbonate, 2 parts of carbon black, and 3 parts of attapulgite clay.

[0013] Preparation. Weigh each raw material, stir at room temperature for 10-15 minutes to make the mixture uniform, then add an open mill, internal mixer or twin-screw extruder to mix and granulate, and control the temperature at 122-128°C to obtain the finished product.

[0014] The tensile cable sheath material that embodiment 1 makes, after testing, tensile strength N / mm before aging 2 : 19.3; elongation a...

Embodiment 2

[0016] 40 parts of ethylene-vinyl acetate copolymer, 7 parts of dibutyltin maleate polymer, 38 parts of polyethylene, 4 parts of allyl acrylate, 0.9 parts of N,N'-di(2-naphthyl)-p-phenylenediamine, 3 parts of epoxy butyl stearate, 1.8 parts of tetrahydrofuran homopolyether, 2.2 parts of 2-nitroaniline-4-sulfonic acid sodium salt, 2.1 parts of 8-hydroxy-1,3,6-trisulfonic acid pyrene, 2.6 parts of triethoxysilane, 0.67 parts of sorbitan tristearate, 0.31 parts of magnesium stearate, 3 parts of light calcium carbonate, 3 parts of carbon black, and 2.1 parts of attapulgite clay.

[0017] The preparation method is the same as in Example 1.

[0018] The stretch-resistant cable sheath material that embodiment 2 makes, after testing, tensile strength N / mm before aging 2 : 18.9; elongation at break (%) before aging: 231; change rate of elongation at break before and after aging (%): 4.31; elongation at break retention (%): 328.

Embodiment 3

[0020] 36 parts of ethylene-vinyl acetate copolymer, 8 parts of dibutyltin maleate polymer, 48 parts of polyethylene, 4 parts of allyl acrylate, 2.4 parts of N,N'-di(2-naphthyl)-p-phenylenediamine, 1 part of epoxy butyl stearate, 0.8 parts of tetrahydrofuran homopolyether, 1.6 parts of 2-nitroaniline-4-sulfonic acid sodium salt, 3 parts of 8-hydroxy-1,3,6-trisulfonic acid pyrene, methyl 2.1 parts of triethoxysilane, 0.8 parts of sorbitan tristearate, 0.36 parts of magnesium stearate, 2 parts of light calcium carbonate, 4 parts of carbon black, and 2.6 parts of attapulgite clay.

[0021] The preparation method is the same as in Example 1.

[0022] The stretch-resistant cable sheath material that embodiment 3 makes, after testing, tensile strength N / mm before aging 2 : 18.8; elongation at break (%) before aging: 233; change rate of elongation at break before and after aging (%): 4.34; elongation at break retention (%): 331.

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PUM

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Abstract

The invention discloses a tensile cable sheath material. The tensile cable sheath material is prepared from, by weight, 35-50 parts of ethylene-vinyl acetate copolymer, 3-9 parts of dibutyltin maleate polymer, 35-50 parts of polyethylene, 1-5 parts of allyl acrylate, 0.6-2.5 parts of N,N'-bis(2-naphthyl)-p-phenylenediamine, 1-4 parts of epoxidized butyl stearate, 0.7-3.6 parts of furfuryl polyether, 1.2-2.8 parts of sodium 2-nitroaniline-4-sulfonate, 1-3 parts of 8-hydroxypyrene-1,3,6-trisulfonate, 2-4 parts of methyltriethoxysilane, 0.3-0.9 part of sorbitan tristearate, 0.1-0.5 part of magnesium stearate, 2-6 parts of light calcium carbonate, 1-4 parts of carbon black and 2-3 parts of attapulgite clay. The tensile cable sheath material has an excellent tensile property and is also excellent in elongation at break, breaking elongation retention rate after ageing and impact brittle temperature.

Description

technical field [0001] The invention relates to a stretch-resistant cable sheath material and a preparation method. Background technique [0002] Polyethylene cable material has the incomparable advantages of PVC cable material. It is light in weight, good in heat resistance, strong in load capacity, non-melting, resistant to chemical corrosion, and high in mechanical strength. It is widely used in distribution networks, industrial devices or other large capacity electricity field. But, along with the expansion of wire and cable application occasions, the requirement to polyethylene cable sheathing material is constantly improved, and the tensile strength of the general polyethylene cable sheathing material on the market can't meet market demand at present. Contents of the invention [0003] In order to overcome the above-mentioned deficiencies, the object of the present invention is to provide a stretch-resistant cable sheath material, which has excellent tensile propert...

Claims

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Application Information

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IPC IPC(8): C08L23/08C08L23/06C08L35/00C08L71/02C08K13/02C08K5/18C08K5/42C08K5/5419C08K5/098C08K3/04C08K3/34
CPCC08L23/0853C08L23/06C08L2203/202C08L2205/02C08L2205/035
Inventor 陈永军曹中年
Owner ANHUI HUAXING CABLE GROUP
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