Super absorbent expansion thixotropy type block water paste with low density for optic cable and preparing method thereof

A low-density, water-blocking paste technology, applied to chemical instruments and methods, cables, insulated cables, etc., to achieve the effects of low paste density, favorable stability, and reduced filling weight

Active Publication Date: 2009-10-07
HAISO TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

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Method used

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Examples

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Effect test

Embodiment 1

[0034] Get 32kg of synthetic polyα-olefin oil, 44kg of refined mineral oil, 4kg of acrylonitrile hollow plastic powder, 3.5kg of fumed silica powder, 4kg of polymer oil inhibitor SEP, 12kg of polymer polyacrylic acid potassium salt water-absorbing swelling agent and antioxidant Dosage 2640.5kg. A low-density, high-water-absorbing-swellable water-blocking paste for optical cables was prepared according to the aforementioned preparation steps.

Embodiment 2

[0036] Get 32kg of synthetic polyα-olefin oil, 44kg of refined mineral oil, 8kg of acrylonitrile hollow plastic powder, 3.5kg of fumed silica powder, 4kg of polymer oil inhibitor SEP, 8kg of polymer polyacrylic acid sodium salt water-absorbing swelling agent and antioxidant Dosage 22640.5kg. A low-density, high-water-absorbing-swellable water-blocking paste for optical cables was prepared according to the aforementioned preparation steps.

Embodiment 3

[0038] Get 33kg of synthetic polyα-olefin oil, 45kg of refined mineral oil, 8kg of acrylonitrile hollow plastic powder, 3.5kg of fumed silica powder, 2kg of polymer oil inhibitor SEP, 12kg of polymer polyacrylic acid potassium salt water-absorbing swelling agent and anti- Oxygen agent 2640.5kg. A low-density, high-water-absorbing-swellable water-blocking paste for optical cables was prepared according to the aforementioned preparation steps.

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Abstract

The present invention provides a super absorbent expansion thixotropy type block water paste with low density for optic cable and a preparing method thereof. The block water paste is prepared by raw materials by weight part as follows: synthesizing polyolefin oil with 0-80 parts, affinage mineral oil with 0-80 parts, high molecule hollow plastic powder with 1-8 parts, silica flour with 2-8 parts, high molecule restrain oil agent with 1-5 parts, high molecule absorbent expansion agent with 5-12 parts and anti-oxidant with 0.1-0.5 parts. The preparing method includes steps as follows: mixing and stirring the synthesizing polyolefin oil and affinage mineral oil, elevating temperature to 150-180 DEG C, removing residual volatile matter and moisture, then adding high molecule restrain oil agent for soluting the solid body fully, cooling to below 50 DEG C, adding the hollow plastic powder and stirring fully, then adding the anti-oxidant, the silica flour, the high molecule absorbent expansion agent orderly, then stirring equality for obtaining paste, mechanical lapping and homogenisation, vacuum out gas under stirring, pressuring and emptying through the filter, then obtaining the block water paste. The block water paste has less than 0.6 g/cm(3) denseness, and has stable physical chemistry property and better processing performance.

Description

technical field [0001] The invention relates to a water-blocking paste for filling optical (electrical) cables and a preparation method thereof, in particular to a low-density, high-water-absorbing-expansion thixotropic water-blocking paste for optical cables and a preparation method thereof. Background technique [0002] Optical cable filling paste is an indispensable and important material for the production of optical cables. It fills in all the gaps between the cable core and the sheath to seal and waterproof, protect the optical fiber from moisture in the environment, prevent moisture from penetrating into the cable, freeze at low temperature, and damage the cable, thereby prolonging the service life of the cable and keeping it The stability and reliability of the information transmitted during the long-term use of optical cables. [0003] Optical cable filling paste has experienced the development stage from hot-melt filling paste to thixotropic filling paste, and the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M149/08C10M147/02C10M177/00C09K3/10G02B6/44H01B7/288C10N30/00C10N40/34
Inventor 佘万能王文志余晓梦何文鹏屈秀宁沈革新彭长征
Owner HAISO TECH
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