Cable sealing module and preparation method thereof

A technology of cable sealing and vinyl end sealing, which is applied in the direction of cable entry sealing devices, etc., can solve the problems of cumbersome production methods, short service life of materials, and difficult replacement, and achieve excellent sealing and radiation protection performance, improve flame retardancy, The effect of improving radiation resistance

Active Publication Date: 2014-06-25
HAILONG EMERSON ZHENJIANG ENERGY TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing cable sealing materials have low fire performance, are not easy to replace, and have relatively single functions, and the service life of the materials is short. If they are not replaced in time, they will often cause safety hazards
At the same time, the existing cable sealing modules are basically molded by high-temperature curing, which is cumbersome and expensive

Method used

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  • Cable sealing module and preparation method thereof
  • Cable sealing module and preparation method thereof
  • Cable sealing module and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] A method for preparing a cable sealing module, the preparation steps are as follows: first, 100 parts of vinyl-terminated polydimethylsiloxane and 5 parts of phenylene silicone rubber are added to a multifunctional dispersing mixer, and mixed at 20 ° C 20min, then add 4 parts of p-terphenyl, 5 parts of m-terphenyl, 6 parts of ferric oxide, 5 parts of aluminum dioxide, 4 parts of zinc oxide, 25 parts of magnesium hydroxide, 15 parts of zinc borate, 5 parts of fumed silica, 10 parts of MQ silicone resin, stir and mix for 60 minutes, then add 0.6 parts of Pt catalyst, stir and disperse for 40 minutes, finally add 62 parts of hydrogen-containing silicone oil with a hydrogen content of 0.2%, stir and mix for 10 minutes, pour into In the mold, let it stand for degassing and curing for 40 minutes in an environment with a temperature of 25°C and a relative humidity of 60%. After demolding, the semi-finished products of each component are obtained, and then assembled to obtain a ...

Embodiment 2

[0018] A method for preparing a cable sealing module, the preparation steps are as follows: first, 100 parts of vinyl-terminated polydimethylsiloxane and 2 parts of phenylene silicone rubber are added to a multifunctional dispersing mixer, and mixed at 25 ° C 30min, then add 3 parts of p-terphenyl, 2 parts of m-terphenyl, 3 parts of ferric oxide, 6 parts of aluminum dioxide, 3 parts of zinc oxide, 15 parts of magnesium hydroxide, 20 parts of zinc borate, 10 parts of fumed silica, 7 parts of MQ silicone resin, stirred and mixed for 50 minutes, then added 1 part of Pt catalyst, stirred and dispersed for 30 minutes, and finally added 55 parts of hydrogen-containing silicone oil with a hydrogen content of 0.2%, stirred and mixed for 5 minutes, poured into In the mold, let it stand for degassing and curing for 20 minutes in an environment with a temperature of 25°C and a relative humidity of 60%. After demolding, the semi-finished products of each component are obtained, and then co...

Embodiment 3

[0020] A method for preparing a cable sealing module, the preparation steps are as follows: first, 100 parts of vinyl-terminated polydimethylsiloxane and 5 parts of phenylene silicone rubber are added to a multifunctional dispersing mixer, and mixed at 23 ° C 25min, then add 6 parts of p-terphenyl, 3 parts of m-terphenyl, 5 parts of ferric oxide, 3 parts of aluminum dioxide, 6 parts of zinc oxide, 30 parts of magnesium hydroxide, 15 parts of zinc borate, 8 parts of fumed silica, 5 parts of MQ silicone resin, stirred and mixed for 40 minutes, then added 0.4 parts of Pt catalyst, stirred and dispersed for 35 minutes, and finally added 65 parts of hydrogen-containing silicone oil with a hydrogen content of 0.2%, stirred and mixed for 15 minutes, poured into In the mold, let it stand for degassing and curing for 40 minutes in an environment with a temperature of 25°C and a relative humidity of 60%. After demolding, the semi-finished products of each component are obtained, and then...

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Abstract

The invention discloses a cable sealing module. The cable sealing module is prepared from the following raw materials in parts by mass: 100 parts of vinyl-blocking polydimethylsiloxane, 2-5 parts of phenylene silicon rubber, 3-6 parts of p-terphenyl, 2-5 parts of m-terphenyl, 3-6 parts of ferric oxide, 3-6 parts of aluminium oxide, 3-6 parts of zinc oxide, 15-30 parts of magnesium hydroxide, 15-30 parts of zinc borate, 5-10 parts of fumed silica, 5-10 parts of MQ silicon resin, 0.4-1 parts of Pt catalyst and 55-65 parts of hydrogen-containing silicone oil with a hydrogen content of 0.2%. The cable sealing module is convenient to produce, low in cost, free from the ingredients of halogen, sulphur and the like, high in service life which exceeds 40 years, good in flame retardance, sealing performance and radiation resistance, free from generating a toxic gas with fire, convenient to install, replace and overhaul, and suitable for cable threading fireproof sealing systems used by various cable through holes in the fields of telecommunication and power systems, rail transit, and the like.

Description

technical field [0001] The invention relates to a cable fireproof sealing material for sealing penetrating openings and a preparation method thereof, in particular to a cable sealing module and a preparation method thereof. Background technique [0002] With the development of society, the degree of electrification in many fields is increasing, and it is often necessary to pass cables or other pipelines through different partitions. In order to prevent the exchange of the medium on both sides of the spacer and maintain the medium pressure, temperature, composition stability and cleanliness of the required space, it is necessary to seal the place where the cable or pipeline passes. In addition to the functions of dustproof, toxic gas, and container pressure maintenance, the seal must also have multiple functions such as fire prevention and radiation protection. Existing cable sealing materials have low fire resistance, are not easy to replace, and have relatively single func...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L83/07C08L83/04C08L83/05C08K13/02C08K5/01C08K3/22C08K3/38C08K3/36H02G15/013
Inventor 严玉段佳巍郑家青
Owner HAILONG EMERSON ZHENJIANG ENERGY TECH
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