Carbon Fibers yog dab tsi?
Cov pa roj carbon fibers yog graphite zoo li cov hlua txuas ntev carbon uas muaj cov qauv sib txuas. Cov kab txuas txuas ntev ntev ntawm cov pa roj carbon tshwm sim vim yog cov cuab yeej catenation ntawm carbon atoms, piv txwv li kev sib txuas ntawm atoms ntawm cov khoom sib xws.
Thomas Elva Edison tau txais txiaj ntsig los ntawm kev tsim thawj cov pa roj carbon filament rau kev sim hauv lub teeb hluav taws xob siv cov paj rwb ntuj.
Precursors yog cov khoom siv raw siv hauv kev tsim cov carbon fibers.
Carbon Fiber Ua li cas?
Cov pa roj carbon fiber ntau yog tsim los ntawm cov txheej txheem hu ua polyacrylonitrile, lossis PAN. Nyob rau hauv tus txheej txheem, ib daim ntawv fiber ntau raug rau xws li kub kub uas yuav luag txhua yam tsuas yog cov carbon nws tus kheej raug hlawv.
Cov kauj ruam los tsim ib txwm Carbon Fibers:
1: Polymerization: Ua kom cov hlua ntev ntev, cov khoom ua ntej yog polymerized.
2: Spinning: Tom qab ntawd, cov polymer yog spun rau hauv fibers ntev. Cov txheej txheem chemical thiab mechanical feem ntau yog ua haujlwm.
3: Oxidizing: Cov fiber ntau ruaj khov los ntawm cua sov hauv huab cua. Nws absorbs oxygen los ntawm huab cua thiab dhau los ua cov txheej txheem atomic rearrangement kom stabilize cov fiber ntau.
4: Carbonization: Thaum tsis muaj oxygen, kev kho mob siab ntawm oxidized thiab ruaj khov fiber ntau pab kom tsis txhob muaj cov pa roj carbon atoms, uas ua rau muaj cov pa roj carbon fiber ntau.
5: Kev kho deg: Carbonized fibers muaj kev sib txuas tsis zoo, ua rau lawv nyuaj rau kev sib koom ua ke nrog epoxy resins los tsim cov khoom sib xyaw. Yuav kom tau txais qhov kev sib khi muaj peev xwm, qhov saum npoo yog kho nrog cov tshuaj tsim nyog.
6: Sizing: Rau kev tiv thaiv, cov fibers yog coated nrog epoxy, nylon, polyester, thiab lwm yam ntaub ntawv. Qhov no yog hu ua sizing.
Cov ntawv carbon fiber raw yog tom qab sib xyaw ua ke nrog lwm cov hlau (ib feem tseem ceeb ntawm kev nkag siab txog carbon fiber conductivity), thiab cov txiaj ntsig tau raug kho thiab siv cov txheej txheem tshuaj.
Cov txheej txheem yog qhov tob thiab, yog li ntawd, kim.
TSEEM CEEB: 5 Kev lom zem siv rau cov ntawv carbon fiber ntau
Puas yog Carbon Fiber Conductive ntawm nws tus kheej?
Tsis yog, carbon fiber tsis dhau conductive thaum nws tsis ua ke nrog lwm yam, tsis hais txog ntawm thermal lossis hluav taws xob conductivity.
Thaum nws los txog rau thermal conductivity (lub peev xwm los ua cua sov), carbon fiber yog nruab nrab. Cov pa roj carbon fiber ntau muaj peev xwm ua kom muaj cua sov ntau npaum li silicon, thiab txawm tias cov pa roj carbon fiber ntau sab saum toj muaj tsawg dua li txhuas.
Plain qub carbon fiber yog qhov zoo dua me ntsis thaum nws los txog rau kev siv hluav taws xob, txawm hais tias nws tseem tsis zoo li cov hlau feem ntau. Thaum nws tau siv los ua cov khoom siv hluav taws xob, nws yog qhov zoo tshaj plaws los hloov cov pa roj carbon fiber ntau los ntawm kev sib txuas nrog lwm cov hlau lossis los ntawm kev tsim cov khoom siv hluav taws xob ntau dua li cov pob zeb diamond lossis graphite.
Yuav Ua Li Cas Peb Ua Carbon Fiber Ntau Tus Coj?
Txhawm rau ua kom cov hluav taws xob ua tau zoo, cov pa roj carbon fiber yuav tsum tau kho nrog lwm cov ntaub ntawv thaum nws raug cais tawm. Qhov sib xyaw zoo tshaj plaws los ua ke nrog cov pa roj carbon fiber ntau txhawm rau txhawm rau ua kom muaj zog yog latex rau ionic conductivity (los ntawm cov kua) thiab silica fume rau hluav taws xob conductivity (los ntawm cov khoom).
Muaj cov pa roj carbon allotropes uas ua kom sov zoo dua li cov pa roj carbon fiber ntau -- pob zeb diamond, tshwj xeeb tshaj yog, ua kom sov txog li 100x zoo dua li cov pa roj carbon fiber ntau. Tsim cov allotropes no nyob deb ntawm qhov yooj yim, tab sis muaj cov txheej txheem cuam tshuam nrog lub siab, cua sov, thiab lwm yam tshuaj lom neeg uas ua rau kev hloov pauv tau. Yog tias cov pa roj carbon fiber tau kho nrog cov pa roj carbon allotropes thaum lawv npaj tau, cov pa roj carbon fiber ntau tuaj yeem ua rau ntau dua.
Yog li, puas yog carbon fiber conductive? Tsis muaj ntau npaum li cas hauv nws lub xeev lub hauv paus, tab sis qhov ntawd tuaj yeem hloov tau yooj yim nrog me ntsis kev tshawb fawb.
Tom ntej: Dab tsi yog carbon fiber qhwv siv rau?
Puas yog Carbon Fiber Conductive Thaum piv rau Hlau?
Tsis yog los ntawm nws tus kheej, tsis yog. Thaum kho nrog lwm yam hlau, tab sis, nws yog.
Ntawm nws tus kheej, carbon fiber tsis yog ib tug zoo conductor ntawm hluav taws xob piv rau hlau. Qhov tseeb, feem ntau cov hlau ua hluav taws xob nyob ib puag ncig 1000x nrog rau cov pa roj carbon fiber ntau. Txawm tias thaum kho nrog lwm cov ntaub ntawv, carbon fiber tseem tsis zoo li hlau thaum nws los txog rau hluav taws xob conduction. Cov hlau xws li nyiaj, txhuas, thiab tooj liab yog qhov tshwj xeeb tshaj yog zoo ntawm kev siv hluav taws xob, tseem txog 100x sai npaum li cov pa roj carbon fiber ntau kho nrog cov hluav taws xob zoo.
Kev ua lub zog thermal yog ib zaj dab neeg sib txawv. Thaum ua tau zoo thiab kho kom raug, carbon fiber ntau yog cov khoom siv hluav taws xob ntau dua li cov hlau uas muaj cov hlau zoo li tooj liab.
Dab tsi yog Kev Siv Cov Hluav Taws Xob Carbon Fiber?
Kev kho cov pa roj carbon fiber ntau yog siv rau hauv cov khoom siv khoom kim heev xws li kaus mom hlau thiab lub loggagethat tau txais txiaj ntsig los ntawm kev sib sib zog nqus thiab ruaj khov. Tab sis cov conductivity ntawm carbon fiber ci nyob rau hauv ntau industrial siv xws li thawv siding nyob rau hauv engineering andaerospace tej yaam num.
Kev tshawb fawb tseem ua haujlwm los txhim kho cov hluav taws xob conductivity ntawm carbon fiber. Vim nws txoj kev ua haujlwm zoo tshaj plaws, tiv thaiv tshav kub, lub teeb yuag, thiab qhov me me thaum piv rau cov khoom xws li cov xaim hlau, nws xav tias cov khoom siv carbon fiber ntau yuav raug siv ntau dua li cov khoom siv yav tom ntej.
Cov pa roj carbon fiber ntau muaj qhov zoo tshaj plaws. Ib tug ntawm lawv yog nws amazing muaj peev xwm ua ib tug thermal lossis hluav taws xob conductor thaum kho nrog lwm yam hlau composites.
