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Wear-resistant communication cable sheath and preparation method thereof

A communication cable and sheath material technology, which is applied to circuits, electrical components, plastic/resin/wax insulators, etc., can solve the problems of rapid aging of the sheath of communication cables, cable fires, etc. The effect of reducing brittleness and improving mechanical properties

Inactive Publication Date: 2019-08-02
ANHUI COMM IND SERVICE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the field of communication, the existing overhead data cables generally do not have steel tape armor, but only one layer of sheath, which makes the sheath of the communication cable used outdoors age faster. Timely detection and replacement will affect the signal transmission of the cable, and due to the flammability of the cable, the aging cable in the hot season may even cause a fire

Method used

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  • Wear-resistant communication cable sheath and preparation method thereof
  • Wear-resistant communication cable sheath and preparation method thereof
  • Wear-resistant communication cable sheath and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] 1) Weigh 20 parts of chlorosulfonated polyethylene, 10 parts of polyethylene glycol, 4 parts of carbon black, 2 parts of copolymer of MBS grafted maleic anhydride, 0.6 parts of antioxidant, 0.2 parts of zinc stearate according to the formula Pour into a high-speed kneader for mixing, the speed of the high-speed kneader is 1000r / min, heat up to 100°C, add 10 parts of flame retardant, and the mixing reaction time is 10Min;

[0023] 2) Extrude the mixed material in step 1) with a twin-screw extruder, the extrusion pelletizing temperature of the extruder is 150°C, and the speed of the twin-screw extruder is 200r / min;

[0024] 3) The twin-screw extruded material is heatedly cut. The extrusion temperature of the twin-screw is divided into three zones. The temperatures in the three zones are 150°C, 165°C, and 180°C respectively, and the finished product is obtained by granulation.

[0025] See Table 1 and Table 2 for detailed data comparison.

Embodiment 2

[0027] 1) Weigh 30 parts of chlorosulfonated polyethylene, 20 parts of polyethylene glycol, 8 parts of carbon black, 3 parts of MBS grafted maleic anhydride copolymer, 0.8 part of antioxidant, 0.5 part of zinc stearate according to the formula , pour it into a high-speed kneader and mix, the speed of the high-speed kneader is 1100r / min, the temperature is raised to 110°C, 15 parts of flame retardant are added, and the mixing reaction time is 13Min;

[0028] 2) Extrude the mixed material in step 1) with a twin-screw extruder, the extruder extrusion pelletizing temperature is 175°C, and the twin-screw extruder speed is 200r / min;

[0029] 3) The material extruded into strips by the twin-screw extruder is water-cooled and then granulated by a pelletizer to obtain a finished product. The extrusion temperature of the twin-screw is divided into three zones, and the temperatures in the three zones are respectively 155 °C, 177 °C, 190 °C, water cooling temperature of 50 °C, water flow ...

Embodiment 3

[0032] 1) Take by weighing 40 parts of chlorosulfonated polyethylene, 30 parts of polyethylene glycol, 12 parts of carbon black, 4 parts of copolymers of MBS grafted maleic anhydride, 1.0 parts of antioxidant, and 0.8 parts of zinc stearate , pour it into a high-speed kneader and mix, the speed of the high-speed kneader is 1200r / min, the temperature is raised to 120°C, 20 parts of flame retardant are added, and the mixing reaction time is 15Min;

[0033] 2) Extrude the mixed material in step 1) with a twin-screw extruder, the extruder extrusion pelletizing temperature is 200°C, and the twin-screw extruder speed is 200r / min;

[0034] 3) The twin-screw extruded materials are heatedly cut. The twin-screw extrusion temperature is divided into three zones, and the temperatures in the three zones are 165°C, 180°C, and 200°C respectively, and the finished product is obtained by granulation.

[0035] See Table 1 and Table 2 for detailed data comparison.

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Abstract

The invention discloses a wear-resistant communication cable sheathing material. The wear-resistant communication cable sheath comprises the following components calculated in parts by mass: 20 to 40parts of chlorosulfonated polyethylene, 10 to 30 parts of polyethylene glycol, 4 to 12 parts of carbon black, 2 to 4 parts of an MBS-grafted maleic anhydride copolymer, 0.6 to 1.0 part of an antioxidant, 0.2 to 0.8 part of zinc stearate and 10 to 20 parts of a flame retardant. The prepared cable sheath is wear-resistant and crack-resistant, simple in preparation method and convenient to operate.

Description

technical field [0001] The invention relates to the field of communication cables, in particular to a wear-resistant communication cable sheath and a preparation method thereof. Background technique [0002] With the rapid development of economy, cables are widely used in communication, electric power and other fields. [0003] Communication cables refer to cables used for short-distance audio communication and long-distance high-frequency carrier digital communication and signal transmission. They are widely used in communication line transmission, instrumentation, electric power and other important fields. In the field of communication, the existing overhead data cables generally do not have steel tape armor, but only one layer of sheath, which makes the sheath of the communication cable used outdoors age faster. Timely detection and replacement will affect the signal transmission of the cable, and due to the flammability of the cable, the aging cable in the hot season ma...

Claims

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Application Information

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IPC IPC(8): C08L23/34C08L71/02C08L51/00C08K3/04C08K5/098C08K3/22C08K3/34C08K13/02C08K5/13H01B3/44B29B9/06B29C48/92
CPCC08L23/34H01B3/441B29B9/06B29C48/92C08K2003/2224C08K2003/2227C08L2201/08C08L2203/202C08L2205/03B29C2948/92704
Inventor 唐文良彭凌志陈平强
Owner ANHUI COMM IND SERVICE CO LTD
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