Method for preparing high-strength cable outer sheath materials

An outer sheath, high-strength technology, used in plastic/resin/wax insulators, organic insulators, etc., can solve the problems of shortening life and increasing user costs, reducing extrusion, improving strength, and increasing UV resistance. Effect

Inactive Publication Date: 2018-01-23
洪有生
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when this kind of cable is used, due to the environment in which it is used, the life of the cable is greatly shortened during use, which increases the cost of use for users.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Step 1. After fully mixing the toner with EVA resin, zinc stearate, and EBS (ethylene bisstearamide), use a co-rotating twin-screw extruder with a length-to-diameter ratio of 36:1 to heat the powder at 170°C. Extrusion granulation and drying to make color masterbatch; described toner: EVA resin: zinc stearate: the weight ratio of EBS is 45: 50: 3.5: 1.5;

[0030] Step 2, chopping basalt fibers, glass fibers and metal fibers to obtain basalt fibers less than 0.5 mm in length, glass fibers less than 0.3 mm in length and metal fibers less than 0.2 mm in length;

[0031] Step 3, weigh 32 parts of ethylene-tetrafluoroethylene copolymer, 28 parts of propylene-tetrafluoroethylene copolymer, 3 parts of color masterbatch, 0.5 part of lubricant, 0.5 part of antioxidant, 1 part of carbon black or titanium dioxide, 14 parts of basalt fiber, 2 parts of glass fiber, 1 part of graphene, 3 parts of barium sulfate and 1 part of metal fiber;

[0032]Step 4, mix ethylene-tetrafluoroethyl...

Embodiment 2

[0035] Step 1. After fully mixing the toner with EVA resin, zinc stearate, and EBS (ethylene bisstearamide), use a co-rotating twin-screw extruder with a length-to-diameter ratio of 36:1 to heat the powder at 170°C. Extrusion granulation and drying to make color masterbatch; described toner: EVA resin: zinc stearate: the weight ratio of EBS is 45: 50: 3.5: 1.5;

[0036] Step 2, chopping basalt fibers, glass fibers and metal fibers to obtain basalt fibers less than 0.5 mm in length, glass fibers less than 0.3 mm in length and metal fibers less than 0.2 mm in length;

[0037] Step 3, weigh 45 parts of ethylene-tetrafluoroethylene copolymer, 42 parts of propylene-tetrafluoroethylene copolymer, 8 parts of color masterbatch, 1.5 parts of lubricant, 1.2 parts of antioxidant, 3 parts of carbon black or titanium dioxide, 18 parts of basalt fiber, 5 parts of glass fiber, 3 parts of graphene, 8 parts of barium sulfate and 3 parts of metal fiber;

[0038] Step 4: Mix ethylene-tetrafluor...

Embodiment 3

[0041] Step 1. After fully mixing the toner with EVA resin, zinc stearate, and EBS (ethylene bisstearamide), use a co-rotating twin-screw extruder with a length-to-diameter ratio of 36:1 to heat the powder at 170°C. Extrusion granulation and drying to make color masterbatch; described toner: EVA resin: zinc stearate: the weight ratio of EBS is 45: 50: 3.5: 1.5;

[0042] Step 2, chopping basalt fibers, glass fibers and metal fibers to obtain basalt fibers less than 0.5 mm in length, glass fibers less than 0.3 mm in length and metal fibers less than 0.2 mm in length;

[0043] Step 3, weigh 35 parts of ethylene-tetrafluoroethylene copolymer, 30 parts of propylene-tetrafluoroethylene copolymer, 6 parts of color masterbatch, 1.2 parts of lubricant, 0.8 part of antioxidant, 2 parts of carbon black or titanium dioxide, 16 parts of basalt fiber, 4 parts of glass fiber, 2 parts of graphene, 4 parts of barium sulfate and 2 parts of metal fiber;

[0044] Step 4, mix ethylene-tetrafluoro...

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Abstract

The invention discloses a method for preparing high-strength cable outer sheath materials. The method includes preparing color master batch; weighing ethylene-tetrafluoroethylene copolymers, propylene-tetrafluoroethylene copolymers, the color master batch, lubricants, antioxidants, carbon black or titanium dioxide powder, basalt fibers, glass fibers and graphene according to the weights; mixing the ethylene-tetrafluoroethylene copolymers and the propylene-tetrafluoroethylene copolymers with one another, simultaneously heating and uniformly stirring the ethylene-tetrafluoroethylene copolymers and the propylene-tetrafluoroethylene copolymers until the temperatures of the ethylene-tetrafluoroethylene copolymers and the propylene-tetrafluoroethylene copolymers reach 220 DEG C, preserving heatfor 0.5-1.2 hours and then stopping heating the ethylene-tetrafluoroethylene copolymers and the propylene-tetrafluoroethylene copolymers; placing the glass fibers, the basalt fibers, the lubricants, the carbon black or titanium dioxide powder and the graphene into the ethylene-tetrafluoroethylene copolymers and the propylene-tetrafluoroethylene copolymers, uniformly stirring the ethylene-tetrafluoroethylene copolymers, the propylene-tetrafluoroethylene copolymers, the glass fibers, the basalt fibers, the lubricants, the carbon black or titanium dioxide powder and the graphene, keeping the temperatures of 35 DEG C unchanged under the control and preserving heat for 1.5 hours to obtain slurry; feeding the slurry into a granulator and carrying out stretching, hot cutting and cooling to obtainthe high-strength cable outer sheath materials. The method has the advantage that the high-strength cable outer sheath materials prepared by the aid of the method are outstanding in anti-ultravioletand anti-aging performance and excellent in mechanical performance.

Description

technical field [0001] The invention belongs to the field of optical cables, in particular to a preparation method of a cable outer sheath material. Background technique [0002] With the modernization of the optical communication industry and the power transmission industry, the transmission of optical and electrical signals and the transmission of control signals require multiple cables to be laid together. For the convenience of engineering installation and maintenance, the cables need to be distinguished into different colors and can be maintained for a long time. Non-fading, thus giving birth to the market demand for colored anti-ultraviolet (UV) polyethylene cable compound. However, those skilled in the art know that color masterbatches need to be added to colored cable materials, and non-polar polyethylene resins are very difficult to be compatible with polar color toners, and the color dispersibility is poor, and the color of the cable materials made is unstable. It...

Claims

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Application Information

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IPC IPC(8): C08L23/08C08L23/14C08K13/04C08K7/14C08K7/10C08K3/04C08K3/22C08K5/098C08K7/06C08K3/30H01B3/44B29B9/06
Inventor 洪有生
Owner 洪有生
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