Polybutylene terephthalate(PBT)) yog ib qho semi-crystalline, thermoplastic saturated polyester, feem ntau yog milky dawb, granular khoom ntawm chav tsev kub, feem ntau yog siv rau hauv kev tsim cov khoom siv thermoplastic txheej thib ob ntawm optical cable.
Kev txheej txheej thib ob ntawm cov fiber ntau optical yog ib qho txheej txheem tseem ceeb heev hauv kev tsim cov fiber ntau optical. Hais yooj yim xwb, kev ntxiv ib txheej tiv thaiv rau cov txheej txheej thawj zaug ntawm cov fiber ntau optical lossis txheej buffer tuaj yeem txhim kho lub peev xwm ntawm cov fiber ntau optical kom tiv taus kev ntxhov siab ntev thiab radial thiab pab txhawb kev ua tiav ntawm cov fiber ntau optical. Vim tias cov khoom siv txheej txheej ze rau cov fiber ntau optical, nws muaj kev cuam tshuam ntau dua rau kev ua haujlwm ntawm cov fiber ntau optical, yog li cov khoom siv txheej txheej yuav tsum muaj cov coefficient nthuav dav me me, crystallinity siab tom qab extrusion, tshuaj lom neeg zoo thiab thermal stability, phab ntsa du thiab sab nraud ntawm cov txheej txheej txheej, qee lub zog tensile thiab Young's modulus, thiab muaj kev ua haujlwm zoo. Cov txheej txheej fiber feem ntau muab faib ua ob pawg: xoob npog thiab nruj npog. Ntawm lawv, cov khoom siv xoob sheath siv hauv cov txheej txheej xoob sheath yog cov txheej txheej thib ob extruded hauv qhov xwm txheej xoob tes tsho sab nraum cov txheej txheej thawj zaug fiber.
PBT yog cov khoom siv tes tsho xoob uas muaj cov khoom zoo heev rau kev tsim thiab ua cov khoom siv, kev nqus dej tsawg thiab kev ua haujlwm siab. Feem ntau siv rau hauvPBTKev hloov kho, PBT hlau kos duab, casing, zaj duab xis kos duab thiab lwm yam teb. PBT muaj cov khoom siv kho tshuab zoo (xws li tensile tsis kam, khoov tsis kam, sab siab tsis kam), zoo solvent tsis kam, roj tsis kam, tshuaj corrosion tsis kam, thiab fiber paste, cable paste thiab lwm yam khoom ntawm cable muaj kev sib raug zoo, thiab muaj kev ua haujlwm molding zoo heev, tsis tshua muaj dej noo, thiab pheej yig. Nws cov qauv kev ua tau zoo tseem ceeb suav nrog: intrinsic viscosity, yield zog, tensile thiab khoov elastic modulus, impact zog (notch), linear expansion coefficient, dej absorption, hydrolysis tsis kam thiab lwm yam.
Txawm li cas los xij, nrog rau kev hloov pauv ntawm cov qauv fiber cable thiab qhov chaw ua haujlwm, ntau qhov yuav tsum tau ua rau fiber buffer bushing. Kev siv crystallization siab, qis shrinkage, qis linear expansion coefficient, siab toughness, siab compressive zog, zoo heev tshuaj lom neeg tsis kam, zoo ua tiav, thiab cov ntaub ntawv pheej yig yog lub hom phiaj uas cov chaw tsim khoom siv optical cable ua. Tam sim no, muaj qhov tsis txaus hauv daim ntawv thov thiab tus nqi ntawm lub raj beam ua los ntawm cov khoom PBT, thiab cov teb chaws txawv teb chaws tau pib siv cov ntaub ntawv PBT alloy 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 loj hauv tsev tab tom npaj, cov tuam txhab khoom cable xav tau kev tsim kho tshiab tas mus li, kev tshawb fawb thiab kev txhim kho ntawm cov ntaub ntawv tshiab.
Tau kawg, hauv kev lag luam PBT tag nrho, cov ntawv thov fiber optic cable tsuas yog nyob ib feem me me ntawm kev lag luam PBT. Raws li cov peev txheej kev lag luam, hauv kev lag luam PBT tag nrho, feem ntau ntawm kev lag luam feem ntau yog nyob los ntawm ob qho chaw ntawm tsheb thiab fais fab. Cov khoom sib txuas, relays thiab lwm yam khoom ua los ntawm cov ntaub ntawv PBT hloov kho tau siv dav hauv tsheb, khoom siv hluav taws xob thiab hluav taws xob, cov khoom siv kho tshuab thiab lwm yam teb, thiab txawm tias PBT muaj daim ntawv thov hauv kev lag luam textile, xws li cov txhuam hniav kuj ua los ntawm PBT. Cov hauv qab no yog cov ntawv thov dav dav ntawm PBT hauv ntau qhov chaw:
1. Cov khoom siv hluav taws xob thiab hluav taws xob
Cov ntaub ntawv PBT siv dav hauv cov khoom siv hluav taws xob thiab hluav taws xob, xws li cov qhov (sockets), cov ntsaws hluav taws xob, cov qhov (sockets) thiab lwm yam khoom siv hluav taws xob hauv tsev. Vim tias cov ntaub ntawv PBT muaj kev ua haujlwm rwb thaiv tsev zoo thiab tiv taus kub siab, nws tsim nyog rau lub plhaub, lub bracket, daim 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 tseem siv tau los ua lub vijtsam LCD rov qab, lub plhaub TV thiab lwm yam.
2. Lub teb chaws automotive
Cov ntaub ntawv PBT kuj siv dav hauv kev lag luam tsheb. Vim nws qhov zoo ntawm qhov kub thiab txias, kev xeb thiab kev hnav tsis kam, cov ntaub ntawv PBT siv dav hauv kev tsim cov khoom siv tsheb, xws li lub tshuab nqus dej, lub tsev twj tso kua roj, lub tsev sensor, cov khoom siv nres, thiab lwm yam. Tsis tas li ntawd, cov ntaub ntawv PBT kuj tseem siv tau rau lub rooj zaum hauv tsheb lub taub hau, cov txheej txheem kho lub rooj zaum, thiab lwm yam.
3. Kev lag luam tshuab
Hauv kev lag luam tshuab, cov ntaub ntawv PBT feem ntau siv los tsim cov cuab yeej tuav, cov hloov pauv, cov nyees khawm, thiab lwm yam. Cov ntaub ntawv PBT muaj lub zog zoo heev thiab kev tiv thaiv kev hnav, tuaj yeem tiv taus ntau yam kev siv tshuab, thiab muaj kev tiv thaiv kev xeb zoo, tsim nyog rau ntau qhov chaw hauv kev lag luam tshuab.
4. Kev lag luam khoom siv kho mob
Cov khoom siv PBT muaj kev tiv taus kub thiab ruaj khov tshuaj lom neeg siab, uas yog qhov tsim nyog rau kev tsim cov khoom siv kho mob. Piv txwv li, cov khoom siv PBT tuaj yeem siv los ua cov khoom siv kho mob, cov kav dej, cov khoom sib txuas, thiab lwm yam. Tsis tas li ntawd, cov khoom siv PBT kuj tseem siv tau los ua cov koob txhaj tshuaj kho mob, cov khoom siv infusion thiab ntau yam cuab yeej kho mob.
5. Kev sib txuas lus kho qhov muag
Hauv kev sib txuas lus kho qhov muag, PBT siv dav hauv kev tsim cov xov hlau kho qhov muag ua cov khoom siv xoob xoob. Tsis tas li ntawd, cov ntaub ntawv PBT siv dav hauv cov khoom siv kho qhov muag. Vim nws cov khoom siv kho qhov muag zoo thiab tiv taus kub siab, cov ntaub ntawv PBT siv los ua cov khoom sib txuas fiber ntau, cov thav duab faib fiber ntau, thiab lwm yam. Tsis tas li ntawd, cov ntaub ntawv PBT kuj tseem siv tau los ua cov iav, daim iav, Qhov rai thiab lwm yam khoom siv kho qhov muag.
Los ntawm qhov kev xav ntawm tag nrho kev lag luam, nyob rau xyoo tas los no, cov tuam txhab lag luam tseem ceeb tau cog lus rau kev tsim ntau yam kev siv cov thev naus laus zis tshiab thiab cov khoom tshiab, thiab PBT tau tsim kho rau hauv kev ua haujlwm siab, kev ua haujlwm thiab kev sib txawv. Lub zog tensile ntawm PBT resin ntshiab, lub zog khoov thiab modulus khoov qis, tsis tuaj yeem siv dav hauv kev lag luam, yog li rau qhov xav tau ntawm kev lag luam, kev lag luam los ntawm kev hloov kho kom txhim kho kev ua haujlwm ntawm PBT. Piv txwv li, iav fiber ntxiv rau PBT - iav fiber muaj qhov zoo ntawm kev siv tau zoo, cov txheej txheem yooj yim thiab tus nqi qis. Los ntawm kev ntxiv iav fiber rau PBT, cov txiaj ntsig qub ntawm PBT resin tau coj los ua si, thiab lub zog tensile, lub zog khoov thiab notch cuam tshuam lub zog ntawm PBT cov khoom tau txhim kho zoo heev.
Tam sim no, cov txheej txheem tseem ceeb hauv tsev thiab txawv teb chaws yog kev hloov kho copolymerization, kev hloov kho cov khoom siv inorganic filling, nanocomposite technology, kev hloov kho sib xyaw, thiab lwm yam, los txhim kho kev ua tau zoo ntawm PBT. Kev hloov kho ntawm cov ntaub ntawv PBT feem ntau tsom mus rau cov yam ntxwv ntawm lub zog siab, hluav taws kub retardant, qis warpage, tsawg nag thiab tsawg dielectric.
Feem ntau, txog tag nrho kev lag luam PBT, qhov kev thov rau daim ntawv thov hauv ntau qhov chaw tseem ceeb heev, thiab ntau yam kev hloov pauv raws li kev thov ntawm kev ua lag luam kuj yog cov hom phiaj tshawb fawb thiab kev txhim kho ntawm cov tuam txhab lag luam PBT.
Lub sijhawm tshaj tawm: Lub Kaum Ob Hlis-17-2024