External-application waterproofing filler for communication cable insulating layer and preparation method for external-application waterproofing filler

A technology for communication cables and insulation layers, which is applied in the field of water-blocking fillers for external communication cable insulation layers and its preparation, can solve the problems of affecting the stability of the insulation layer, affecting the service life of cables, and the general water-blocking effect, so as to improve the strain performance and Self-healing ability, shorten cooling time, simple and convenient operation

Inactive Publication Date: 2019-08-20
ANHUI COMM IND SERVICE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In power engineering applications, cables are usually laid by direct burial, cable trenches, etc. Sometimes, for communication needs, some cables need to be soaked in water for a long time. After a long time, the cable sheath will rot and water will enter the cable. Affect the service life of the cable and bring certain safety hazards
[0003] At present, the preparation process of water-blocking materials used in China is complicated, and it is easy to react to the insulating layer, which affects the stability of the insulating layer. The water-blocking effect is ordinary and the service life is short.

Method used

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  • External-application waterproofing filler for communication cable insulating layer and preparation method for external-application waterproofing filler
  • External-application waterproofing filler for communication cable insulating layer and preparation method for external-application waterproofing filler

Examples

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Effect test

Embodiment 1

[0020] 1) Weighing according to the formula, 10 parts of modified cyclodextrin solution, 4 parts of polystyrene, 6 parts of polyalphaolefin, 1 part of calcium carbonate, 0.4 part of stannous octoate, 0.1 part of maleic acid, Put 4 parts of 1,4-butanediol and 4 parts of carbon black into the reaction kettle, mix and stir evenly, heat up to 60 degrees Celsius, and react for 20 minutes;

[0021] 2) Continue to add 10 parts of methanol and 0.4 parts of aluminum foam when the temperature is 80 degrees Celsius, and mix and react for 20 minutes;

[0022] 3) Put the mixture obtained in step 2) into an internal mixer for mixing. The mixing temperature is 130° C., and the mixing time is 30 minutes. After the mixed material is discharged, it is dried, and the drying temperature is 100° C. , the drying time is 12h, the dried material passes through the water cooling tank, the water flow rate is 1m / s, and the water-blocking filler is obtained, and the particle size of the water-blocking fi...

Embodiment 2

[0025] 1) Weighing according to the formula, 20 parts of modified cyclodextrin solution, 6 parts of polystyrene, 8 parts of polyalphaolefin, 2 parts of calcium carbonate, 0.5 part of stannous octoate, 0.2 part of maleic acid, Put 7 parts of 1,4-butanediol and 5 parts of carbon black into the reaction kettle, mix and stir evenly, heat up to 65 degrees Celsius, and react for 25 minutes;

[0026] 2) Continue to add 13 parts of methanol and 0.6 parts of aluminum foam when the temperature is 85 degrees Celsius, and mix and react for 25 minutes;

[0027] 3) Put the mixture obtained in step 2) into an internal mixer for mixing. The mixing temperature is 140° C., and the mixing time is 45 minutes. After the mixed material is discharged, it is dried, and the drying temperature is 105° C. , the drying time is 18h, the dried material passes through the water cooling tank, the flow rate of water is 1m / s, and the water-blocking filler is obtained, and the particle size of the water-blockin...

Embodiment 3

[0030] 1) Weighing according to the formula, 30 parts of modified cyclodextrin solution, 8 parts of polystyrene, 10 parts of polyα-olefin, 3 parts of calcium carbonate, 0.6 parts of stannous octoate, 0.3 parts of maleic acid, Put 10 parts of 1,4-butanediol and 6 parts of carbon black into the reaction kettle, mix and stir evenly, heat up to 70 degrees Celsius, and react for 30 minutes;

[0031] 2) Continue to add 16 parts of methanol and 0.8 parts of aluminum foam when the temperature is 90 degrees Celsius, and mix and react for 30 minutes;

[0032] 3) Put the mixture obtained in step 2) into an internal mixer for mixing. The mixing temperature is 150° C., and the mixing time is 60 minutes. After the mixed material is discharged, it is dried, and the drying temperature is 110° C. , the drying time is 24h, the dried material passes through the water cooling tank, the flow rate of water is 1m / s, and the water-blocking filler is obtained, and the particle size of the water-blocki...

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Abstract

The invention discloses external-application waterproofing filler for a communication cable insulating layer. The external-application waterproofing filler comprises the following ingredients in partsby weight: 4-8 parts of polystyrene, 6-10 parts of poly-alpha-olefin, 1-3 parts of calcium carbonate, 0.4-0.6 part of stannous octoate, 10-30 parts of modified cyclodextrin solution, 10-16 parts of methanol, 0.1-0.3 part of maleic anhydride, 4-10 parts of 1,4-butanediol, 4-6 parts of carbon black and 0.4-0.8 part of foamed aluminum. A preparation method is simple, industrial popularization is facilitated, the waterproofing effect is good, the service life is long, potential safety hazards of cables caused by a soaking problem are avoided.

Description

technical field [0001] The invention relates to the field of water-blocking materials, in particular to a water-blocking filler for external communication cable insulation layers and a preparation method thereof. Background technique [0002] In power engineering applications, cables are usually laid by direct burial, cable trenches, etc. Sometimes for communication needs, some cables need to be soaked in water for a long time. After a long time, the cable sheath will rot and water will enter the cable. It affects the service life of the cable and brings certain safety hazards. [0003] At present, the preparation process of water-blocking materials used in China is complicated, and it is easy to react to the insulating layer, which affects the stability of the insulating layer. The water-blocking effect is ordinary and the service life is short. Contents of the invention [0004] In order to solve the above problems, the present invention provides a water-blocking filler...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/02C08L5/16C08L25/06C08K9/10C08K3/04C08K7/24C08K3/26C08K5/053C08K13/06
CPCC08L23/02C08K2003/265C08L2201/02C08L2203/20C08L2205/03C08L5/16C08L25/06C08K9/10C08K3/04C08K7/24C08K3/26C08K5/053C08K13/06
Inventor 王伟刘成莹王欢
Owner ANHUI COMM IND SERVICE CO LTD
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