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A kind of preparation method of flexible cable sheath material

A sheath material and flexible cable technology, applied in the direction of rubber insulators, organic insulators, etc., can solve the problems of poor solvent resistance of cable materials, poor flexibility of base rubber, and low elasticity and tensile properties of flexible cable materials. Good insulation, good tensile properties, good solvent corrosion resistance

Active Publication Date: 2018-11-23
GUANGDONG LINE GIANT CABLE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problem of low elasticity and tensile properties of flexible cable materials, improve the problem of poor flexibility of the base rubber by adding silicone rubber, and solve the problem by modifying the filler The problem of poor solvent resistance of cable materials caused by the addition of white carbon black fillers

Method used

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  • A kind of preparation method of flexible cable sheath material

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Comparison scheme
Effect test

Embodiment 1

[0025] A preparation method for a cable sheath material, comprising the steps of:

[0026] According to parts by weight, 40 parts of natural rubber, 5 parts of silicone rubber, 3 parts of coumarone resin, 1 part of antioxidant RD, 4 parts of white carbon black, 5 parts of talcum powder, 2 parts of accelerator D, 3 parts of sulfur, After mixing 3 parts of dibutyl phthalate, 3 parts of zinc oxide and 3 parts of ethyl acetate evenly, the materials are extruded and granulated by a twin-screw extruder, and the granules are then dried in a hot air dryer to obtain a sheath Materials; the temperatures of the feed section, compression section, homogenization section and head of the twin-screw extruder are 110°C, 125°C, 155°C and 170°C in sequence.

Embodiment 2

[0028] A preparation method for a cable sheath material, comprising the steps of:

[0029] According to parts by weight, 55 parts of natural rubber, 15 parts of silicone rubber, 6 parts of coumarone resin, 3 parts of antioxidant RD, 7 parts of white carbon black, 8 parts of talcum powder, 4 parts of accelerator D, 5 parts of sulfur, ortho After mixing 5 parts of dibutyl phthalate, 5 parts of zinc oxide and 6 parts of ethyl acetate evenly, feed the materials in a twin-screw extruder to extrude and pelletize, and then enter the hot air dryer to dry the pellets to obtain the sheath material ; The feeding section, compression section, homogenization section and die temperature of the twin-screw extruder are 120°C, 140°C, 165°C and 180°C in sequence.

Embodiment 3

[0031] A preparation method for a cable sheath material, comprising the steps of:

[0032] According to parts by weight, 50 parts of natural rubber, 10 parts of silicone rubber, 5 parts of coumarone resin, 2 parts of antioxidant RD, 5 parts of white carbon black, 6 parts of talcum powder, 3 parts of accelerator D, 4 parts of sulfur, After mixing 4 parts of dibutyl phthalate, 4 parts of zinc oxide and 5 parts of ethyl acetate evenly, feed the materials in a twin-screw extruder to extrude and pelletize, and then enter the hot air dryer to dry the pellets to obtain the sheath Materials; the temperatures of the feed section, compression section, homogenization section and head of the twin-screw extruder are 115°C, 130°C, 160°C and 175°C in sequence.

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Abstract

The invention relates to a preparation method of a flexible cable sheath material, belonging to the technical field of cable materials. The preparation method comprises the following steps: evenly mixing the following raw materials in parts by weight: 40-55 parts of a rubber base material, 5-15 parts of silicone rubber, 3-6 parts of tackifying resin, 1-3 parts of an anti-aging agent, 4-7 parts of a reinforcing agent, 5-8 parts of a filling agent, 2-4 parts of a vulcanizing accelerator, 3-5 parts of a vulcanizing agent, 3-5 parts of a plasticizer, 3-5 parts of an active agent and 3-6 parts of an organic solvent, feeding a twin-screw extruder with the mixture for extruding and granulating, enabling the obtained granules to enter a hot air drier, and drying to obtain the cable sheath material. The silicone rubber is added into the cable sheath material, so that the problems that the flexible cable material is lower in elasticity and tensile property can be solved; furthermore, white carbon black filler is modified, so that the problem that the cable material is poor in solvent resistance due to the addition of the white carbon black filler can be solved; the prepared cable sheath material has the advantages of being good in tensile property, insulating property and solvent corrosion resistance.

Description

technical field [0001] The invention relates to a preparation method of a flexible cable sheath material, which belongs to the technical field of cable materials. Background technique [0002] Flexible cables are generally made into drag chain motion systems. As a material with good performance for power transportation, flexible cables are widely used in various industries. Due to its good flexibility, more uses of flexible cables are being discovered. For example, the current flexible cables are not only used for power transmission, but also for signal transmission. Drag chain cables are also called moving cables, robot cables and towing cables because of their good moving performance. Existing cables use ethylene-propylene rubber insulation material to make the insulation layer in consideration of flexibility, but ethylene-propylene rubber is a non-polar material with poor oil resistance, and it is difficult to ensure long-term use safety only by relying on oil resistan...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L7/00C08L83/04C08L45/02C08K13/02C08K13/06C08K9/06C08K3/36C08K5/12C08K5/101C08K3/22C08K3/34H01B3/28B29C47/92B29C48/92
CPCB29C48/92B29C2948/92704C08K2003/2296C08L7/00C08L2205/03H01B3/28C08L83/04C08L45/02C08K13/02C08K3/36C08K5/12C08K5/101C08K3/22C08K3/34C08K13/06C08K9/06
Inventor 李志全
Owner GUANGDONG LINE GIANT CABLE