I Introduction
In celeri progressionem communicationis technology in novissimo decade vel sic, in agro application of fibra opticus cables esse expanding. Ut environmental requisitis fibra opticus funem permanere ad augendam, sic facere requisitis ad qualis est materiae usus est in fibra opticus funem. Fiber optic cable water-blocking tape is a common water-blocking material used in the fiber optic cable industry, the role of sealing, waterproofing, moisture and buffer protection in fiber optic cable has been widely recognized, and its varieties and performance have been continuously improved and perfected with the development of fiber optic cable. In annis, in "siccum core" structuram introducta in optical funem. Genus cable aquam obice materia plerumque compositum tape, bis aut coating ne aquam penetret longitudinaliter in cable core. Cum autem crescente acceptatio ex arida core fibra opticus funem, siccum core fibra opticus funem materiae sunt cursim repositoque in traditional PETROLEUM gelata-fundatur funem impletionem componendis. In arida core materia utitur polymer quod cito absorbet aquam ad formare hydrogel, qui tumet et implet aqua penetratio canales funem. In addition, ut arida core materia non continet lentum uncto, nec deleo, solvents et cleaners non requiritur ad parare funem ad splicing et funem splicing tempore valde reducitur. Lux pondus in funem et bonum adhaesionem inter exteriores protectionem et vagina non reducitur, faciens illud vulgaris arbitrium.
II et impulsum aquae in funem et aqua resistentia mechanism
The main reason why a variety of water-blocking measures should be taken is that water entering the cable will decompose into hydrogen and O H- ions, which will increase the transmission loss of the optical fibre, reduce the performance of the fibre and shorten the life of the cable. Plerumque aquae obsidebant mensuras superat petroleum crustulum et addit aquae clausus tape, quae repleti in gap inter cable core et vagina ne aquam et humorem ex spargendo directe, ita ludens in aqua et humorem expandentes, ita ludens in aquis in aqua interclusio.
Cum Synthetica resinam in magnis ut insulators in alimentorum fibra opticus cables (primo in funem), haec insulating materiae sunt immunes ad aqua ingressu. Formatio "aquae arbores" in insulating materia est pelagus ratio ad impulsum in transmissione perficientur. The mechanism by which the insulating material is affected by water trees is usually explained as follows: due to the strong electric field (another hypothesis is that the chemical properties of the resin are changed by the very weak discharge of accelerated electrons), water molecules penetrate through the different numbers of micro-pores present in the sheathing material of the fibre optic cable. The water molecules will penetrate through the different number of micro-pores in the cable sheath material, forming “water trees”, gradually accumulating a large amount of water and spreading in the longitudinal direction of the cable, and affecting the performance of the cable. After years of international research and testing, in the mid-1980s, to find a way to eliminate the best way to produce water trees, that is, before the cable extrusion wrapped in a layer of water absorption and expansion of the water barrier to inhibit and slow down the growth of water trees, blocking water in the cable inside the longitudinal spread; Simul, ex externa damnum et infiltration aqua, aqua obice potest etiam celeriter angustos aqua non longitudinalis propagationem funem.
III Overview de funem aquam obice
III. I genus fibra opticus cable aquam claustra
Sunt multi modi sunt classifying optical cable aquam claustra, quae potest classificatis secundum structuram, qualis et crassitudine. In generali, quod potest classificatis secundum structuram: duplex postesque laminated waterstop, una-postesided iactans waterstop et compositum film Waterstop. Aqua obice munus aquae obice maxime debitum ad altum aqua effusio materiam (vocatur aquam obice), quod potest tumere cursim postquam aquam ad obice aquae obice infilteque aquarumque aquam magisque adeoque infiltration et aquam. Haec includit utrumque naturalis et chemica mutatio Polysaccharides.
Licet naturalis seu semi-naturalis aqua blockers bonorum proprietates habent duas exitiale incommoda:
I) sunt biodegradable et II) sunt valde flammabiles. Hoc facit eos probabile esse in fibra opticus funem materiae. Alterum genus synthetica materia in aqua resistere est per Polyactres, quod potest esse sicut aqua resistit ad optical cables quod occurrit sequenti requisitis: I) cum arida, possunt contrahes generatur in fabricare in opere cables
II) cum aridam, possunt sustinere operating conditionibus optical cables (scelerisque cycling a locus temperatus ad XC ° C) sine afficiens vita funem, et potest sustinere altum temperaturis in brevi temporis;
III) Cum aqua intrat, possunt tumescere cursim et formare gel celeritate expansion.
IV) producendum a valde viscosa gel, usque ad altum temperaturis viscositas gel est firmum diu.
Synthesis aqua repellents potest esse late dividitur in traditional eget modos - reversed-phase modum (aqua-in-oleum polymerization crucem-vinculum methodum), suae crucem-ligula polymerization modum - orbis LX "γ-Ray modum. Cobalt LX" ray modum. Et crucem-vinculum modum fundatur in "Cobalt LX" γ-radialis modum. Alia synthesis modi diversis gradus polymerisation et crucem-vinculum et ideo stricte requisita ad aquas-claudebant agente requiritur in aquis, obturans tapes. Only very few polyacrylates can meet the above four requirements, according to practical experience, water-blocking agents (water-absorbing resins) can not be used as raw materials for a single part of the cross-linked sodium polyacrylate, must be used in a multi-polymer cross-linking method (ie a variety of part of the cross-linked sodium polyacrylate mix) in order to achieve the purpose of fast and high water absorption Plures. Basic requisita sunt, aqua absorption plures possunt ad circa CD temporibus, aqua effusio rate potest pervenire primum minutam ad hauriendum LXXV% aqua absorbuit aquam resistere; Aquae resistere siccatio scelerisque stabilitatem requisitis: Long-term temperatus resistentia de XC ° C, maximam operationem temperatus de CLX ° C, Instantanea temperatus resistentia CCXXX ° C (praesertim ad photoelectric compositum funem cum electrica significationibus); Aqua effusio post formationem gel stabilitatem requisitis: post aliquot scelerisque cycles (XX ° C ~ XCV ° F Aequaliter Nubila postulat de Viscosity Gel et Gel et XCV ° F). Et stabilitatem de gel variat aliquantenus fretus in modum synthesis et materiae usus est per manufacturer. In eodem tempore, non citius expansionem rate, in melius, quidam products unus-postes studium celeritate, usum additives non conducere ad Hydrogel stabilitatem, in exitium aquae retention capacity, sed non ad consequi aquae retention facultatem, sed non consequi effectum aquae resistentia.
III. III characteres de aqua-obturans tape ut funem in vestibulum, testis, translationem, repono et usum processus ut resistere environmental test, ita ex usu ad optical cable, sic a prospectum ad usum tape, ut sequitur aquam, ut ex usu tape requisitis, ut sequitur, ut ex usu tape requisitis sunt, ut sequitur:
I) specie fibra distribution, composita materiae sine delubra et pulveris, cum quadam mechanica vires, idoneam ad necessitates ad funem;
II) uniformis, iterabilis, firmum qualis, in formatione funem non esse delaminated et producendum
III) alta expansion pressura, ieiunium expansionem celeritate, bonum gel stabilitatem;
IV) bonum scelerisque stabilitatem, idoneam variis subsequent processus;
V) High Chemical stabilitatem, non habet aliquam corrosivum components, repugnant ad Bacteria et fingunt exesa;
VI) bonum compatibility cum aliis materiae optical cable, oxidatio resistentia, etc.
IV optical cable aqua obice perficientur signa
A numerus of Results Results ostende quod simpliciter aqua resistentia ad diu terminus stabilitatem funem transmissione perficientur non producendum magnum nocere. Hoc nocere, in vestibulum processus et fabricae inspectionem optical fibra funem difficile invenire, sed paulatim apparent in processus of impositis funem post usum. Ideo in opportune progressionem a comprehensive et accurate test signa, ut inveniam fundamentum ad iudicium omnium partium potest accipere, facta est urgente negotium. Auctor est extensive Research, exploratio et experimenta in aqua-obturans zona zonam provisum est adaequatum technica basis pro progressionem technica signa aquam, obturans balteos. Determinare perficientur parametri aquae obice valore fundatur in sequentibus:
I) De requisitis ad optical cable vexillum ad Waterstop (maxime in requisitis optical cable materia in optical cable vexillum);
II) experientia in fabricantibus et usu aquae claustra et pertinet test tradit;
III) Results Results in influxu de ratione aquarum-obturans tapes in perficientur de optical fibra funibus.
IV. I species
Speciem aquae oppositum tape aequaliter distribuitur fibris Superficies sit plana et a rugis, creas et lacrimis; Nulla finditur latitudine tape; Composita materia sit liber a dellam; Et tape debet esse arcte vulnus et margines manus-tenuit tape sit a "paleas petasum figura."
4.2 mechanica vires de Waterstop
Tererstop tensile est in modum de officinis Polyester non-texta tape, sub eadem quantitatis conditionibus, in viaectosum modum est melius quam calidum-advolvit modum productio de uber tensile vires, crassitudine est etiam tenuior. Tenenses aquae obice tape variat secundum viam funem involvit et involvit circa funem.
Hoc est a key indicator duo ex aqua-obturans zona, in quibus modum modum debet esse per machinam, liquidum et test procedure. The main water-blocking material in the water-blocking tape is partly cross-linked sodium polyacrylate and its derivatives, which are sensitive to the composition and nature of water quality requirements, in order to unify the standard of the swelling height of the water-blocking tape, the use of deionised water shall prevail (distilled water is used in arbitration), because there is no anionic and cationic component in deionised water, which is basically pure aquam. Effusio multiplicator aqua absorption resinae in diversis aqua qualitates variat, si effusio multiplicator in pura aqua est C% nominis valorem; In ICTUS aqua est XL% ad LX% (fretus aquam qualis est per locum); In marcescere est XII%; Subterraneis aquam aut domatum aquam magis universa est difficile determinare effusio recipis et valorem erit valde. Ut aquam obice effectus et vita funem, optime uti aquam obice tape cum tumore altitudinis> 10mm.
4.3electrical possessiones
Generally speaking, the optical cable does not contain the transmission of electrical signals of the metal wire, so do not involve the use of semi-conducting resistance water tape, only 33 Wang Qiang, etc.: optical cable water resistance tape
Electrical compositum funem ante praesentiam electrica annuit, speciale requisita secundum structuram de funem per contractus.
4.4 Thermal stabilitatem maxime varietates aquae-obturans tapes can obviam in scelerisque stabilitatem requisitis: Long-term resistentia de XC ° C, maximum working of CLX ° C, Instantanea temperatus de CCXXX ° C. In perficientur aquae-clausus tape non mutare post certum tempus ad haec temperaturis.
In gel virtus sit maxime momenti proprium est in intumescent material, dum expansionem rate est solum solebat limit longitudinem initial aqua penetratio (minus quam I m.) A bonum expansion materia debet habere ius expansionem rate et altum viscositas. Pauper aquam obice materiam, etiam cum alta expansion rate et humilis viscositas, erit pauper aquam obice proprietatibus. Hoc potest probari in comparatione cum numerus scelerisque cycles. Sub hydrolytic conditiones, in gel et conteram usque in humilitatem viscositas liquor quod deteriorare ejus qualis est. Hoc effectum movere a pura aqua suspensione continet tumor pulveris ad II h. Et inde gel est igitur separata a excessus aqua et positus in rotating VECEMETER ut metiretur ad metimur Viscosity ante et post XXIV H apud XCV ° C. Differentia in Gel stabilitatem potest videri. Hoc plerumque fit in circulis 8h de XX ° C XCV ° C et 8h a XCV ° C XX ° C. Relevant Germanica signa eget CXXVI cycles 8h.
IV. V compatibility ad compatibilitatem aquae obice est praecipue momenti proprietatem in relatione ad vitam fibris opticus funem et debet considerari in relatione ad alimentorum fibra opticus cable materials usque ad alimentorum. Ut compatibility sumit diu ut facti apparent, accelerated senescit test debet esse, id est cable materiam specimen est deleta tape et tenentur in iacuit et thalamum ad C ° X dies, post quas quale appensum est. Tenenses vires et elongatio in materia debet non mutare plus quam XX% post test.
Post tempus: Jul-22-2022