Polybutylene terephthalate(PBT) yog semi-crystalline, thermoplastic saturated polyester, feem ntau milky dawb, granular khoom nyob rau hauv chav tsev kub, feem ntau yog siv nyob rau hauv zus tau tej cov optical cable thermoplastic theem nrab txheej txheej.
Optical fiber ob txheej txheej yog txheej txheem tseem ceeb hauv kev tsim kho qhov muag fiber ntau. Hais lus yooj yim, ntxiv cov txheej txheem tiv thaiv rau cov txheej txheem kho qhov muag fiber ntau lossis txheej txheej tsis tuaj yeem txhim kho lub peev xwm ntawm cov khoom siv kho qhov muag los tiv thaiv kev ntxhov siab ntev thiab radial thiab pab txhawb kev kho qhov muag fiber ntau tom qab ua tiav. Vim tias cov khoom siv txheej yog nyob ze rau ntawm cov khoom siv fiber ntau, nws muaj kev cuam tshuam ntau dua rau kev ua haujlwm ntawm cov khoom siv kho qhov muag, yog li cov khoom siv txheej yuav tsum muaj qhov me me linear expansion coefficient, siab crystallinity tom qab extrusion, zoo tshuaj thiab thermal stability, du sab hauv thiab sab nrauv phab ntsa ntawm txheej txheej, ib qho tensile zog thiab Young's modulus, thiab muaj cov txheej txheem zoo. Fiber txheej feem ntau muab faib ua ob pawg: xoob npog thiab npog nruj. Ntawm lawv, cov khoom siv xoob xoob siv hauv cov xoob sheath txheej yog txheej txheej txheej txheej txheej txheej extruded nyob rau hauv lub tes tsho xoob qhov teeb meem sab nraum thawj txheej txheej fiber ntau.
PBT yog cov khoom siv xoob xoob xoob uas muaj kev sib sau ua tau zoo thiab ua haujlwm zoo, tsis muaj dej noo thiab kev ua haujlwm siab. Feem ntau siv hauvPBTKev hloov kho, PBT hlau kos duab, casing, zaj duab xis kos duab thiab lwm yam. PBT muaj cov khoom siv zoo (xws li tensile tsis kam, khoov tsis kam, sab siab tsis kam), hnyav hnyav, roj tsis kam, tshuaj lom neeg corrosion, thiab fiber ntau muab tshuaj, cable muab tshuaj txhuam thiab lwm yam khoom ntawm lub cable muaj kev sib raug zoo, thiab muaj kev ua haujlwm zoo molding, tsis muaj noo noo nqus, nqi-zoo. Nws cov txheej txheem kev ua haujlwm tseem ceeb suav nrog: intrinsic viscosity, yield zog, tensile thiab dabtsi yog khoov elastic modulus, cuam tshuam lub zog (notch), linear expansion coefficient, dej nqus, hydrolysis tsis kam thiab lwm yam.
Txawm li cas los xij, nrog kev hloov pauv ntawm fiber ntau cable qauv thiab ib puag ncig kev ua haujlwm, ntau qhov yuav tsum tau muab tso rau pem hauv ntej rau fiber ntau bushing. High crystallization, tsawg shrinkage, tsis tshua muaj linear expansion coefficient, siab toughness, siab compressive zog, zoo heev tshuaj tiv thaiv, zoo ua hauj lwm, thiab cov khoom siv uas tsis muaj nqi yog cov hom phiaj raws li optical cable manufacturers. Tam sim no, muaj qhov tsis txaus ntawm daim ntawv thov thiab tus nqi ntawm lub raj raj ua los ntawm cov khoom siv PBT, thiab cov teb chaws txawv teb chaws tau pib siv PBT alloy cov ntaub ntawv los hloov cov ntaub ntawv PBT ntshiab, uas tau ua lub luag haujlwm zoo thiab lub luag haujlwm. Tam sim no, ntau lub tuam txhab cable hauv tsev tseem tab tom npaj siab, cov tuam txhab khoom siv cable xav tau kev tsim kho thev naus laus zis txuas ntxiv, kev tshawb fawb thiab kev tsim cov ntaub ntawv tshiab.
Ntawm chav kawm, nyob rau hauv tag nrho cov kev lag luam PBT, fiber optic cable daim ntaub ntawv tsuas yog nyob ib feem me me ntawm lub lag luam PBT. Raws li kev lag luam hauv kev lag luam, hauv tag nrho PBT kev lag luam, feem ntau ntawm kev lag luam feem ntau yog nyob hauv ob qho kev lag luam tsheb thiab lub zog. Cov khoom sib txuas, relays thiab lwm yam khoom ua los ntawm cov ntaub ntawv PBT hloov kho tau dav siv hauv tsheb, khoom siv hluav taws xob thiab hluav taws xob, cov cuab yeej siv tshuab thiab lwm yam, thiab txawm tias PBT muaj cov ntawv thov hauv cov ntaub ntawv, xws li cov txhuam hniav ntawm cov txhuam hniav kuj yog ua los ntawm PBT. Cov hauv qab no yog cov kev siv dav dav ntawm PBT hauv ntau qhov chaw:
1.Cov khoom siv hluav taws xob thiab hluav taws xob
Cov ntaub ntawv PBT tau siv dav hauv cov khoom siv hluav taws xob thiab hluav taws xob, xws li lub qhov hluav taws xob, cov ntsaws ruaj ruaj, cov khoom siv hluav taws xob thiab lwm yam khoom siv hluav taws xob hauv tsev. Vim tias cov khoom siv PBT muaj kev ua haujlwm zoo rwb thaiv tsev thiab qhov kub thiab txias, nws yog qhov tsim nyog rau lub plhaub, hlua khi, cov ntawv rwb thaiv tsev thiab lwm yam khoom siv hluav taws xob thiab hluav taws xob. Tsis tas li ntawd, cov ntaub ntawv PBT kuj tuaj yeem siv los ua LCD npo rov qab npog, lub plhaub TV thiab lwm yam.
2.Qhov chaw tsheb
Cov ntaub ntawv PBT kuj tau siv dav hauv tsheb. Vim nws qhov zoo ntawm qhov kub thiab txias, corrosion thiab hnav tsis kam, PBT cov ntaub ntawv tau siv dav hauv kev tsim cov khoom siv tsheb, xws li kev siv cov khoom siv, cov roj twj tso kua mis, cov khoom siv hluav taws xob, cov khoom siv nres tsheb, thiab lwm yam.
3.Lub tshuab kev lag luam
Hauv kev lag luam tshuab, PBT cov ntaub ntawv feem ntau yog siv los tsim cov cuab yeej tes, keyboards, khawm, thiab lwm yam. PBT cov khoom muaj lub zog zoo heev thiab hnav tsis kam, tuaj yeem tiv taus ntau yam khoom siv zog, thiab muaj cov tshuaj tiv thaiv corrosion zoo, haum rau ntau qhov chaw hauv kev lag luam machinery.
4.Cov khoom siv kho mob kev lag luam
PBT cov khoom muaj qhov kub thiab txias tsis kam thiab tshuaj lom neeg ruaj khov, uas yog qhov tsim nyog rau kev tsim cov khoom siv kho mob. Piv txwv li, cov ntaub ntawv PBT tuaj yeem siv los ua cov cuab yeej kho mob hauv tsev, cov kav dej, cov khoom sib txuas, thiab lwm yam. Tsis tas li ntawd, cov ntaub ntawv PBT kuj tuaj yeem siv los ua cov koob txhaj tshuaj kho mob, cov tshuaj infusion thiab ntau yam khoom siv kho mob.
5. Kev sib txuas lus kho qhov muag
Hauv kev sib txuas lus kho qhov muag, PBT yog dav siv hauv kev tsim kho qhov muag cable raws li cov khoom siv xoob xoob. Tsis tas li ntawd, cov ntaub ntawv PBT tau siv dav hauv cov khoom siv kho qhov muag. Vim nws cov khoom siv kho qhov muag zoo thiab kub tsis kam, cov ntaub ntawv PBT yog siv los ua cov khoom siv kho qhov muag fiber ntau, cov khoom siv kho qhov muag fiber ntau, thiab lwm yam. Tsis tas li ntawd, cov ntaub ntawv PBT kuj tseem siv tau los ua cov lo ntsiab muag, iav, qhov rais thiab lwm yam khoom siv kho qhov muag.
Los ntawm kev xav ntawm tag nrho kev lag luam, nyob rau hauv xyoo tas los no, cov tuam txhab lag luam tau cog lus rau kev txhim kho ntau yam kev siv cov thev naus laus zis tshiab thiab cov khoom tshiab, thiab PBT tau tsim nyob rau hauv cov kev taw qhia ntawm kev ua haujlwm siab, kev ua haujlwm thiab kev sib txawv. Ntshiab PBT resin tensile lub zog, khoov lub zog thiab khoov modulus yog tsawg, tsis tuaj yeem siv dav hauv kev lag luam, yog li rau cov kev xav tau ntawm kev lag luam, kev lag luam los ntawm kev hloov kho los txhim kho kev ua haujlwm ntawm PBT. Piv txwv li, iav fiber ntau ntxiv rau PBT - iav fiber ntau muaj qhov zoo ntawm kev siv tau zoo, cov txheej txheem sau yooj yim thiab tus nqi qis. Los ntawm kev ntxiv cov iav fiber ntau rau PBT, thawj qhov zoo ntawm PBT resin raug coj mus rau hauv kev ua si, thiab lub zog tensile, khoov lub zog thiab kev cuam tshuam lub zog ntawm PBT cov khoom tau txhim kho zoo.
Tam sim no, txoj hauv kev tseem ceeb hauv tsev thiab txawv teb chaws yog kev hloov pauv copolymerization, cov khoom siv tsis muaj kev hloov pauv, nanocomposite thev naus laus zis, kev hloov kho sib xyaw, thiab lwm yam, txhawm rau txhim kho kev ua tau zoo ntawm PBT. Kev hloov kho ntawm cov ntaub ntawv PBT feem ntau yog tsom mus rau cov yam ntxwv ntawm lub zog siab, hluav taws kub retardant, qis warpage, tsis tshua muaj nag lossis daus thiab dielectric tsawg.
Feem ntau, raws li tag nrho cov kev lag luam PBT muaj kev txhawj xeeb, daim ntawv thov kev thov hauv ntau qhov chaw tseem ceeb heev, thiab ntau yam kev hloov kho raws li kev xav tau ntawm kev lag luam kuj yog cov kev tshawb fawb thiab kev loj hlob ntawm PBT kev lag luam kev lag luam.
Post lub sij hawm: Dec-17-2024