Hauv cov xov hluav taws xob nruab nrab thiab siab, cov tshuaj tiv thaiv semi-conductive ua lub luag haujlwm tseem ceeb hauv kev ua kom muaj kev faib hluav taws xob sib npaug thiab txhim kho qhov sib txuas ntawm cov neeg coj, cov rwb thaiv tsev, thiab cov txheej tiv thaiv. Cov tshuaj no feem ntau yog tsim los ntawm cov roj hmab hauv paus, cov pa roj carbon dub uas ua rau muaj hluav taws xob, thiab ntau yam khoom siv ntxiv rau kev ua haujlwm. Ntawm cov khoom no, cov roj hmab hauv paus muaj feem cuam tshuam loj rau kev ua haujlwm, kev ruaj khov ntawm hluav taws xob, kev sib raug zoo ntawm qhov sib txuas, kev ua haujlwm laus ntawm thermal, thiab kev ntseeg siab mus sij hawm ntev ntawm cov xov hluav taws xob.
Nyob rau xyoo tas los no, Ethylene Butyl Acrylate (EBA) tau dhau los ua ib qho ntawm cov resins nyiam rau cov khoom siv tiv thaiv semi-conductive siv rau hauv cov xov hluav taws xob nruab nrab thiab siab, ua tsaug rau nws qhov kev ua tau zoo tag nrho.
EBA Resin Yog Dab Tsi?
EBA (Ethylene Butyl Acrylate) yog ib qho thermoplastic copolymer uas tsim los ntawm ethylene thiab butyl acrylate (BA). Kev qhia txog cov pab pawg butyl acrylate rau hauv cov saw polymer muab qhov nruab nrab polarity, uas tso cai rau EBA los sib xyaw cov yam ntxwv zoo heev ntawm polyolefins nrog kev sib raug zoo dua nrog cov ntaub ntawv polar.
Piv nrog cov polyethylene ib txwm muaj, EBA muaj ntau qhov zoo:
Kev yooj ywm zoo heev thiab kev ua haujlwm kub tsawg
Zoo thermal stability thiab tsis kam rau thermal laus
Kev txhim kho kev sib kis ntawm cov pa roj carbon dub uas ua rau muaj hluav taws xob zoo dua
Kev sib raug zoo nrog polyethylene,XLPE, thiab lwm yam khoom siv rwb thaiv tsev
Cov yam ntxwv no ua rau EBA ua cov khoom siv zoo rau cov khoom siv tiv thaiv semi-conductive.
Vim li cas EBA thiaj li zoo rau cov khoom siv tiv thaiv semi-conductive?
Kev Txhim Kho Cov Pa roj Carbon Dub
Qhov kev ua tau zoo ntawm hluav taws xob ntawm cov khoom siv tiv thaiv semi-conductive feem ntau nyob ntawm seb cov pa roj carbon dub conductive puas tuaj yeem tsim cov network conductive sib xws thiab txuas ntxiv mus.
Cov pawg polar hauv EBA txhim kho kev sib cuam tshuam ntawm cov resin thiab cov pa roj carbon dub conductive, pab cov pa roj carbon dub tawg ntau dua thoob plaws hauv cov polymer matrix. Kev tawg zoo dua pab txhawb rau qhov ntim resistivity qis dua thiab ruaj khov dua thaum tseem txhim kho qhov zoo ntawm qhov chaw ntawm cov txheej tiv thaiv, txo cov teeb meem interface thiab txhawb kev sib txuas zoo dua nrog cov txheej rwb thaiv tsev.
Kev Ua Haujlwm Hluav Taws Xob Ruaj Khov
Thaum lub sijhawm ua haujlwm, cov xov hluav taws xob nruab nrab thiab siab muaj kev hloov pauv kub tas li thaum cov khoom siv ua haujlwm hloov pauv. Yog li ntawd, cov txheej tiv thaiv semi-conductive yuav tsum tswj cov khoom hluav taws xob ruaj khov thoob plaws ntau qhov kub thiab txias.
Nrog rau kev tsim cov qauv zoo tshaj plaws, EBA-based semi-conductive shielding compounds tuaj yeem muab lub network conductive ruaj khov dua thiab txo cov kev hloov pauv resistivity los ntawm kev hloov pauv kub. Qhov no pab tswj kom muaj lub zog hluav taws xob sib npaug thiab pab txhawb rau kev ntseeg siab mus sij hawm ntev ntawm cov cable.
Kev Tiv Thaiv Kev Laus Zoo heev
Cov xov hluav taws xob tau tsim los ua haujlwm tas li ntawm qhov kub siab rau ntau xyoo, ua rau kev tiv taus kev laus thermal yog qhov tseem ceeb ntawm cov ntaub ntawv tiv thaiv semi-conductive.
Piv rau qee cov txheej txheem polymer ib txwm muaj, EBA muaj kev ruaj khov zoo thaum tshav kub. Tom qab kev laus ntev ntawm cov cua sov, cov tshuaj sib xyaw ua ke raws li EBA tuaj yeem khaws lawv cov khoom siv kho tshuab thiab kev ruaj khov ntawm cov qauv, pab ua kom lub neej ua haujlwm ntev dua ntawm ob qho txheej tiv thaiv thiab tag nrho cov kab ke cable.
Kev Sib Npaug Zoo ntawm Lub Zog thiab Kev Ywj Pheej
Thoob plaws hauv kev rho tawm cable, kev khi hlua, kev thauj mus los, kev teeb tsa, thiab kev pabcuam mus sij hawm ntev, cov txheej tiv thaiv semi-conductive raug rau ntau yam kev ntxhov siab ntawm lub cev, suav nrog kev nruj, kev khoov, thiab kev hloov pauv thermal.
Cov tshuaj tiv thaiv uas ua los ntawm EBA muab kev sib xyaw ua ke ntawm lub zog thiab kev ntev, muab kev ywj pheej zoo heev thaum tswj hwm kev tiv thaiv kev tawg. Cov khoom no pab ua kom tau raws li cov kev xav tau ua tiav thiab kev ua haujlwm ntev ntawm cov xov hluav taws xob nruab nrab thiab siab.
Yav tom ntej muaj peev xwm hauv HVDC Cable Daim Ntawv Thov
Raws li thev naus laus zis kis tau hluav taws xob High-Voltage Direct Current (HVDC) txuas ntxiv mus, kev ua tau zoo dua yog qhov xav tau los ntawm cov ntaub ntawv tiv thaiv semi-conductive.
Ntxiv rau qhov muab kev ua hluav taws xob ruaj khov, cov txheej tiv thaiv semi-conductive kuj tseem ua lub luag haujlwm tseem ceeb hauv kev txo qhov chaw them nqi rau hauv lub kaw lus rwb thaiv tsev. Nyob rau hauv xyoo tas los no, cov ntaub ntawv semi-conductive EBA-based tau nyiam kev saib xyuas ntau ntxiv rau cov ntawv thov HVDC cable. Los ntawm kev ua kom zoo dua ntawm cov txheej txheem resin thiab cov qauv sau ua haujlwm, EBA-based compounds muaj peev xwm los txhim kho tus cwj pwm them nqi chaw thiab pab txhawb rau cov txheej txheem rwb thaiv tsev txhim khu kev qha rau HVDC cables.
Cov Kev Xav Tseem Ceeb Thaum Siv EBA
Txawm hais tias EBA muaj ntau yam zoo, nws cov khoom yuav tsum tau xav txog thaum lub sijhawm tsim cov mis thiab ua cov txheej txheem.
Piv txwv li, cov pa roj carbon dub uas ua tau zoo tuaj yeem nqus tau cov dej noo yooj yim, yog li kev tswj cov dej noo kom zoo thaum lub sijhawm khaws cia, tuav, thiab tsim khoom yog qhov tseem ceeb. Tsis tas li ntawd, EBA qhia txog cov yam ntxwv sib txawv ntawm cov khoom siv rwb thaiv tsev polyethylene, xav tau kev ua kom zoo ntawm cov txheej txheem ua co-extrusion. Cov ntsiab lus butyl acrylate (BA) kuj cuam tshuam rau kev yooj ywm, kev ua haujlwm, thiab kev sib raug zoo ntawm interface, yog li kev xaiv qib EBA tsim nyog yog qhov tseem ceeb rau cov qauv cable sib txawv thiab cov kev xav tau ntawm daim ntawv thov.
Xaus lus
Raws li cov xov hluav taws xob nruab nrab thiab siab, cov xov hluav taws xob rov ua dua tshiab, thiab cov kab ke xa xov HVDC txuas ntxiv mus, cov tshuaj tiv thaiv semi-conductive yuav tsum xa cov qib siab dua ntawm kev ruaj khov hluav taws xob, kev sib raug zoo ntawm interface, kev tiv thaiv thermal laus, thiab kev ua haujlwm ua tiav.
Nrog nws cov pa roj carbon dub zoo heev, kev ua haujlwm hluav taws xob ruaj khov, kev tiv taus kev laus thermal muaj zog, thiab cov yam ntxwv ua tiav zoo, EBA resin tau dhau los ua ib qho ntawm cov resins tseem ceeb rau cov khoom siv tiv thaiv semi-conductive ua haujlwm siab thiab xav tias yuav ua lub luag haujlwm tseem ceeb hauv kev tsim cov khoom siv cable tiam tom ntej.
Lub sijhawm tshaj tawm: Lub Rau Hli-26-2026