CN105968682A

CN105968682A - Silicon core pipe for cable

Info

Publication number: CN105968682A
Application number: CN201610622893.2A
Authority: CN
Inventors: 黄振东
Original assignee: Individual
Current assignee: Individual
Priority date: 2016-08-02
Filing date: 2016-08-02
Publication date: 2016-09-28

Abstract

The invention discloses a silicon core pipe for a cable. The silicon core pipe is prepared from, by weight, 190-200 parts of n-decyl hydrocarbon, 65-75 parts of linear-chain undecylenic hydrocarbon, 190-200 parts of hydrogen-containing silicone oil, 15-20 parts of hydroxystearic acid, 4-6 parts of lithium hydrate, 45-55 parts of PE carrier resin, 5-7 parts of color master batch, 60-70 parts of high density polyethylene, 2.2-2.6 parts of antimonous oxide, 0.4-0.6 part of zirconium oxide, 2.5-3 parts of methyl silicone oil, 1.4-1.7 parts of polyethylene wax, 2.1-2.4 parts of zinc stearate, 0.3-0.4 part of sodium hexametaphosphate and 0.2-0.4 part of glycerin monostearate. The silicon core pipe is simple in preparation process, convenient to construct and small in investment, saves cost, can be used for laying various cables underground in the severe environment and protecting cables against damage, and is worthy of popularization, and the service life is prolonged.

Description

A kind of optical cable silicone pipes

Technical field

The present invention relates to silicone pipes technical field, particularly relate to a kind of optical cable silicone pipes.

Background technology

21 century is the epoch of information, and with fastest developing speed is information industry, and in the transmission of information, optical cable is most important logical Road, because only that optical cable can transmit substantial amounts of information with the fastest speed, also will not be disturbed, will not give away secrets, and China is the most several Year telecommunication cause develop the stages of historical development having had passed over from cable communication to optical cable rapidly, from civilian to military, from Phone all enters optical-fibre communications epoch, the biggest development having promoted plastic optical fiber cable jacket ducts to multimedia.Light Cable is typically buried in underground, for being effectively protected optical cable, generally adds a protection sleeve pipe outside optical cable, in cable run process In, the tubing used at first is steel pipe, pipe of cement, pvc pipe and double-wall corrugated pipe, and the problem using middle maximum is how to solve to wear The lubrication problem of inner-walls of duct in cable, typically uses the way of coating lubricant by aforementioned tubes, i.e. before wearing cable first when constructing The lubricant of liquid is coated in pipe material inner wall, but due to the effect of gravity, makes lubricant can not be uniformly distributed in pipe material inner wall, And the cable being also dried by leading portion when wearing cable takes away, therefore no matter select drawing method when wearing cable or blow afloat method, lubrication Problem all directly affects length and the speed wearing cable, uses these methods all to considerably increase the artificial and increase of resource expense. Silicone pipes friction factor is less, and pipe joint is few, quick construction, be not required to outer increasing protection of pipe, greatly reduces construction costs, due to Inwall silicon core layer is permanent solid lubrication oxidant layer, and frictional behaviour keeps constant, and cable can extract in pipe repeatedly, will not shell Falling, depart from, ageing-resistant service life was up to more than 50 years, so silicon core cable tube is widely used in a variety of applications.

Studying more person in silicone oil grease is methyl-silicone oil grease, due to the thickening poor-performing of dimethicone, The compatibility with organic material is the poorest, so, there is the problems such as greasy property is not good enough in methyl-silicone oil grease, limits its application Scope." alkyl modified silicon oil preparation of greases and performance study " Wen Zhongzhu state builds employing containing hydrogen silicone oil and linear alpha olefin Carry out hydrosilylation, prepare alkyl modified silicon oil, then itself and 12 hydroxy stearic acids are carried out saponification, prepare alkyl Modified silicon oil grease, result shows that, under close viscosity, the film strength of alkyl modified silicon oil is bigger than methyl-silicone oil, lubrication Property more preferable, the refractive index ratio methyl-silicone oil of alkyl modified silicon oil is high, closer to Dormant oils, fat and Organic substance, compatible with them Property more preferable, the transparency is higher, but sintering load is close with methyl-silicone oil, not raising, and weatherability, oxidative resistance and resistance to The characteristics such as solvent are general, reduce use field, in order to enable silicone oil grease well to be utilized in silicone pipes, this It is expanded modification by invention on its basis, makes the silicone pipes of preparation disclosure satisfy that the nowadays optical fiber requirement to silicone pipes, actively Accomplish to reduce cost, economize on resources and protect environment.

Summary of the invention

The object of the invention is contemplated to make up the defect of prior art, it is provided that a kind of optical cable silicone pipes.

The present invention is achieved by the following technical solutions:

A kind of optical cable silicone pipes, is made up of the raw material of following weight portion: just hydrocarbon 190-200 in the last of the ten Heavenly stems, straight chain endecatylene hydrocarbon 65-75, containing hydrogen silicone oil 190-200, hydroxy stearic acid 15-20, Lithium hydrate 4-6, PE vector resin 45-55, Masterbatch 5-7, High density polyethylene (HDPE) 60-70, antimony oxide 2.2-2.6, zirconium oxide 0.4-0.6, methyl-silicone oil 2.5-3, Tissuemat E 1.4- 1.7, zinc stearate 2.1-2.4, sodium hexameta phosphate 0.3-0.4, glyceryl monostearate 0.2-0.4.

Described a kind of optical cable silicone pipes, is made up of following concrete steps:

(1) hydrocarbon in positive last of the ten Heavenly stems and straight chain endecatylene hydrocarbon are uniformly mixed, rise high-temperature to 120 DEG C, react 3-4h, the most slowly Adding containing hydrogen silicone oil and appropriate chloroplatinic acid, continuation liter high-temperature is to 130-140 DEG C, and stirring reaction 6-8h, reaction removes after terminating Remove low-boiling-point substance, obtain olefin-modified silicone oil standby；

(2) by methyl-silicone oil, Tissuemat E and zinc stearate high-speed stirred mix homogeneously, it is then added to total weight parts 5-7 times amount In dehydrated alcohol, ultrasonic disperse obtains mixed and modified liquid, and antimony oxide and zirconium oxide are added in mixed and modified liquid ultrasonic point Dissipate 10-20min, power 900kw, be spray-dried standby after ultrasonic end；

(3) modified silicon oil prepared by the step (1) of hydroxy stearic acid, formula ratio 1/3 is added in reactor, rises high-temperature extremely 80-90 DEG C, stirring makes hydroxy stearic acid all dissolve, then rises high-temperature to 90-110 DEG C, adds Lithium hydrate, saponification 1- 2h, reacts complete, liter high-temperature to 120-140 DEG C of dehydration, and is constantly rising the alkyl modified silicon oil that warming middle-JIAO adds 1/3 successively, When temperature is increased to 200-220 DEG C, stops heating, add remaining alkyl modified silicon oil, make temperature in the kettle drop to rapidly 120-140 DEG C, adding step (2) product prepared, stirring reaction naturally cools to discharging during ＜ 100 DEG C, grinds, deaerates, standby With；

(4) product, sodium hexameta phosphate and glyceryl monostearate prepared by PE vector resin, step (3) are together added to mixing Carrying out pelletize in type parallel double-screw extruder, temperature is 195-205 DEG C, makes silicone pipes master batch, then with Masterbatch, highly dense Degree polyethylene and remaining surplus materials synchronize extrusion cladding by three extruders, by Vacuum refrigerator and immersion cooling water Case carries out cooling and shaping to the tubing after extrusion cladding, and metering prints, and draws and crimp the most available.

The invention have the advantage that the present invention uses alhpa olefin and containing hydrogen silicone oil hydrosilylation to prepare copoly type alkyl Modified silicon oil, and oil based on it, carry out saponification with hydroxy stearic acid, and it is glossy that addition lithium soap is made for modified silicon Consistent lubricant, improves powder surface moistening by the modifying agent such as methyl-silicone oil, zinc stearate to zirconium oxide and antimony oxide etc. are modified Property, reduce surface tension, reduce and reunite and make its good dispersion in silicone pipes, reach to strengthen silicone pipes inner sandwich layer antioxygen The performance of the aspects such as change, fire-retardant, fire prevention, recycles grease and PE vector resin etc. and makes master batch, and lubricity is good, thermostability High, antifriction effect height, not sticking, and it is easy to storage, save space, then combine extrusioning shaping, system with high density polyethylene (HDPE) Standby silicone pipes good forming effect, yield rate is high, good stability, and the preparation technology of the present invention is simple, and easy construction puts into little, Cost-effective, can be used for laying of the various cable in underground under adverse circumstances, protection cable preserves from, and increases the service life, value Must promote.

Detailed description of the invention

A kind of optical cable silicone pipes, is made up of the raw material of following weight portion (kilogram): just hydrocarbon in the last of the ten Heavenly stems 190, straight chain 11 Carbon olefin 65, containing hydrogen silicone oil 190, hydroxy stearic acid 15, Lithium hydrate 4, PE vector resin 45, Masterbatch 5, high density polyethylene (HDPE) 60, antimony oxide 2.2, zirconium oxide 0.4, methyl-silicone oil 2.5, Tissuemat E 1.4, zinc stearate 2.1, sodium hexameta phosphate 0.3, Glyceryl monostearate 0.2.

(1) hydrocarbon in positive last of the ten Heavenly stems and straight chain endecatylene hydrocarbon are uniformly mixed, rise high-temperature to 120 DEG C, react 3h, the most slowly add Entering containing hydrogen silicone oil and appropriate chloroplatinic acid, continuation liter high-temperature is to 130 DEG C, and 6h is reacted in stirring, reacts removing low-boiling-point substance after terminating, Obtain olefin-modified silicone oil standby；

(2) by methyl-silicone oil, Tissuemat E and zinc stearate high-speed stirred mix homogeneously, it is then added to the nothing of total weight parts 5 times amount In water-ethanol, ultrasonic disperse obtains mixed and modified liquid, and antimony oxide and zirconium oxide are added to ultrasonic disperse in mixed and modified liquid 10min, power 900kw, be spray-dried standby after ultrasonic end；

(3) modified silicon oil prepared by the step (1) of hydroxy stearic acid, formula ratio 1/3 is added in reactor, rises high-temperature to 80 DEG C, stirring makes hydroxy stearic acid all dissolve, then rises high-temperature to 90 DEG C, adds Lithium hydrate, saponification 1h, has reacted Finish, liter high-temperature to 120 DEG C of dehydrations, and constantly rising the alkyl modified silicon oil that warming middle-JIAO adds 1/3 successively, when temperature is increased to When 200 DEG C, stop heating, add remaining alkyl modified silicon oil, make temperature in the kettle drop to rapidly 120 DEG C, add step (2) The product of preparation, stirring reaction naturally cools to discharging during ＜ 100 DEG C, grinds, deaerates, standby；

(4) product, sodium hexameta phosphate and glyceryl monostearate prepared by PE vector resin, step (3) are together added to mixing Carrying out pelletize in type parallel double-screw extruder, temperature is 195 DEG C, makes silicone pipes master batch, then gathers with Masterbatch, high density Ethylene and remaining surplus materials synchronize extrusion cladding by three extruders, by Vacuum refrigerator and immersion cooling water tank pair Tubing after extrusion cladding carries out cooling and shaping, and metering prints, and draws and crimp the most available.

The silicone pipes preparing embodiment carries out performance measurement, and result is as follows:

Friction factor: 0.13；Hot strength (MPa): 36；Elongation at break (%): 415；Breaking resistance (MPa): 5；Acid corrosion-resistant Property (40% concentrated sulphuric acid, 24h): without obvious corrosion phenomenon；Alkali corrosion resistance (40% sodium hydroxide, 24h): surface is existing without substantially corrosion As.

Claims

1. an optical cable silicone pipes, it is characterised in that be made up of the raw material of following weight portion: positive last of the ten Heavenly stems hydrocarbon 190-200, straight Chain endecatylene hydrocarbon 65-75, containing hydrogen silicone oil 190-200, hydroxy stearic acid 15-20, Lithium hydrate 4-6, PE vector resin 45- 55, Masterbatch 5-7, high density polyethylene (HDPE) 60-70, antimony oxide 2.2-2.6, zirconium oxide 0.4-0.6, methyl-silicone oil 2.5-3, Tissuemat E 1.4-1.7, zinc stearate 2.1-2.4, sodium hexameta phosphate 0.3-0.4, glyceryl monostearate 0.2-0.4.

A kind of optical cable silicone pipes, it is characterised in that be made up of following concrete steps: