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A filling compound suitable for air-blown microtube microcable and its preparation method

A compound and microtube technology, applied in the direction of fiber mechanical structure, etc., can solve the problems of low viscosity, ordinary optical cable filling paste cannot fill microcables, and cannot achieve the fluidity of microcables, so as to achieve good thixotropy and inhibit microbial reproduction , The effect of fast and efficient preparation

Inactive Publication Date: 2017-06-23
惠州市金益光电科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the diameter of the micro-cable is very small, the diameter is only 1.2mm ~ 1.5mm, the filling paste of ordinary optical cable cannot be filled into the micro-cable at all.
At present, the filling pastes used in microcables are slightly improved or replaced on the basis of the existing filling pastes of ordinary optical cables, and none of them can achieve the filling pastes of microcables, which must have good fluidity and low viscosity. , The viscosity value needs to be reduced to half of the ordinary filling paste, and at the same time, it must be guaranteed not to drip at high temperature, keep soft at low temperature, have low acid value and hydrogen evolution value, and the filling compound must not be hydrolyzed, emulsified, and effective when it meets water. Strong waterproof and water-blocking function requirements

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] The present invention is applicable to an embodiment of the filling compound of air-blown microtube and microcable. The filling compound described in this embodiment is prepared by the following method:

[0028] (1) Heat 775g polyalphaolefin synthetic oil to 140°C, add 70g styrene-butadiene rubber and 30g binary ethylene-propylene rubber, and stir for 4 hours to make the styrene-butadiene rubber and binary ethylene-propylene rubber dissolve evenly, then cool to 90°C, get a premix;

[0029] (2) Add 20g of fumed silica to the premix, stir for 1.5h to make it evenly mixed, then add 5g of isooctyl 3,5-di-tert-butyl-4-hydroxyphenylpropionate, 10g of polymethacrylate and 10 g of nonylphenoxyacetic acid, stirred for 0.5 h to make it evenly mixed, and then vacuum degassed to obtain a translucent paste filling compound.

Embodiment 2

[0031] The present invention is applicable to an embodiment of the filling compound of air-blown microtube and microcable. The filling compound described in this embodiment is prepared by the following method:

[0032] (1) Heat 790g polyalphaolefin synthetic oil to 145°C, add 70g styrene-butadiene rubber and 40g binary ethylene-propylene rubber, stir for 4 hours to make the styrene-butadiene rubber and binary ethylene-propylene rubber dissolve evenly, then cool to 92°C, get a premix;

[0033] (2) Add 30g of fumed silica to the premix, stir for 1.5h to make it evenly mixed, then add 7g of naphthylamine, 5g of polyα-olefin pour point depressant and 11g of nonylphenoxyacetic acid, stir for 0.5h to make It is mixed evenly, and then vacuum degassed to obtain a translucent paste filling compound.

Embodiment 3

[0035] The present invention is applicable to an embodiment of the filling compound of air-blown microtube and microcable. The filling compound described in this embodiment is prepared by the following method:

[0036](1) Heat 800g polyalphaolefin synthetic oil to 150°C, add 70g styrene-butadiene rubber and 60g binary ethylene-propylene rubber, and stir for 4 hours to make the styrene-butadiene rubber and binary ethylene-propylene rubber dissolve evenly, then cool to 100°C, get a premix;

[0037] (2) Add 30g of fumed silica to the premix, stir for 1.5h to mix well, then add 8g of diphenylamine, 8g of polymethacrylate and 14g of nonylphenoxyacetic acid, stir for 0.5h to mix Uniform, and then vacuum degassing, that is, a translucent paste filling compound.

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Abstract

The invention discloses a filling compound applicable to air-blown micro-tubes and micro-cables. The filling compound contains the following ingredients in parts by weight: 77.5-86 parts of poly-alpha-olefin synthetic oil, 10-15 parts of oil separation inhibitor, 2-4 parts of thixotropic agent, 0.5-1 part of antioxidant, 0.5-1 part of pour point depressant and 1-1.5 parts of preservative. The filling compound applicable to air-blown micro-tubes and micro-cables, disclosed by the invention, is prepared by combining specific ingredients of specific content, has the advantages of low viscosity, good fluidity, good thixotropic property, no trickling at high temperature, softness maintenance at low temperature, and the like, and can excellently meet the requirements of the micro-cables for filling materials. Furthermore, the invention further provides a method for preparing the filling compound. The method is simple in process and convenient in operation.

Description

technical field [0001] The invention relates to a filling material for an optical fiber cable and a preparation method thereof, in particular to a filling compound for an air-blown microtube microcable and a preparation method thereof. Background technique [0002] In 1997, the Dutch NKF Telecom Company used the air-blowing technology and equipment of Piliment, Switzerland, to put the micro-duct and micro-cable technology into commercial use for the first time in 1997. In 2002, a more than 600-kilometer micro-cable communication line was opened in the United States, marking the official application of micro-pipe and micro-cable technology to long-distance trunk lines. After ten years of development, this technology has been successfully applied in long-distance trunk lines, metropolitan area networks and access networks in Europe and America. According to foreign counterparts, in most Nordic countries, whether it is the construction of the backbone network or the metropolit...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/00C08L23/16C08L9/06C08K3/36C08K5/134C08K5/18C08K5/09G02B6/44
Inventor 苏彩勤袁丽萍杨惠忠杨国雄
Owner 惠州市金益光电科技有限公司