Nyob rau hauv lub sijhawm niaj hnub no ntawm cov txheej txheem thev naus laus zis tshem tawm, cov roj teeb carbon fiber ntau yog ua ib lub npe rau lawv tus kheej hauv kev thaj teb vim lawv ua tau zoo dua. Los ntawm cov ntawv thov high-kawg hauv Aerospace rau cov khoom lag luam niaj hnub, cov roj carbon fiber ntau tau pom muaj peev xwm pom tau zoo. Txawm li cas los xij, los npaj cov tshuaj ntsuab siab carbon fiber ntau ntxiv, ua kom ua haujlwm kho mobcarbon fibersyog ib qib tseem ceeb.
Carbon Fiber Txawv Electron Tsom iav tsom iav
Carbon fiber, kev ua siab zoo fiber ntau cov khoom siv, muaj ntau cov khoom siv. Nws yog tsuas yog muaj cov pa roj carbon thiab muaj lub elongated filamentary tus qauv. Los ntawm qhov pom ntawm cov qauv saum npoo av, cov nplaim dej muaj roj carbon fiber yog tus thiab muaj cov pab pawg ua haujlwm tsawg. Qhov no yog vim qhov tseeb tias thaum lub sij hawm kev npaj cov pa roj carbon fiber, kom muaj kev kho kom sov ua rau cov pa roj carbon fiber tam sim no muaj ntau dua inert lub xeev. Cov ntsiab lus saum npoo no coj cov kev sib tw rau kev npaj ntawm cov roj carbon fiber ntau.
Txoj kev ua kom du ua rau kev sib raug zoo ntawm carbon fiber thiab matrix cov khoom tsis muaj zog. Nyob rau hauv kev npaj ntawm composites, nws nyuaj rau cov khoom sib dhos los ua cov nyiaj sib txuam muaj zog nyob rau saum npoo ntawmCarbon Fiber, uas cuam tshuam tag nrho cov kev ua tau zoo ntawm cov khoom siv sib xyaw. Thib ob, qhov tsis muaj cov pab pawg ua haujlwm nquag txwv cov tshuaj lom neeg ntawm cov roj carbon fiber thiab matrix cov ntaub ntawv. Qhov no ua rau kev sib tshuam sib txuam ntawm ob feem ntau tsuas yog cia siab rau lub cev, thiab lwm yam.
Schematic daim duab ntawm interlayer Qhov kev txhawb nqa lub zog ntawm cov fiber ntau ntaub pua cov ntaub ntawm cov nanotubes
Txhawm rau daws cov teeb meem no, kev ua haujlwm kho mob carbon fiber yeej tsim nyog. Ua kom txhijcarbon fibersQhia cov kev hloov pauv tseem ceeb hauv ntau qhov.
Kev kho mob ua kom nce cov npoo ntawm cov roj carbon fiber. Los ntawm kev kho tshuaj oxidation, ntshav kho mob thiab lwm txoj hauv kev, cov pits thiab cov kua muag me me thiab cov pa roj carbon ntau, ua rau cov pa roj carbon. Qhov chaw ntxhib no nce qhov chaw tiv tauj ntawm cov pa roj carbon fiber thiab cov khoom siv substrate, uas txhim kho cov neeg kho tshuab sib txuas ntawm ob. Thaum cov khoom siv matrix tau sib khi rau cov pa roj carbon fiber, nws yog qhov zoo dua tuaj yeem tso rau hauv cov qauv ntxhib, sib sau ua kom muaj zog sib haum.
Cov kev kho mob kom ua tau tuaj yeem qhia cov pab pawg muaj kev nplua nuj ntawm cov npoo ntawm cov carbon fiber. Cov pab pawg ua haujlwm no tuaj yeem ua rau cov tshuaj nrog cov pab pawg ua haujlwm hauv cov khoom sib piv los ua cov kev sib txuas lus. Piv txwv li, oxidation kev kho mob tuaj yeem qhia pawg hydroxyl thiab lwm pab pawg carboxyl thiab lwm pab pawg ua haujlwm ntawm cov pa roj carbon fiber, uas tuaj yeem hnov mob nrog tusEpoxyCov pab pawg nyob rau hauv lub resin matrix thiab yog li nyob rau daim ntawv sib cav sib haum. Lub zog ntawm kev cai tshuaj no muaj ntau dua li ntawm kev ua lub cev, uas tau txhim kho lub zog sib txuam ntawm cov pa roj carbon fiber ntau thiab cov khoom sib xyaw.
Lub zog saum npoo ntawm cov pa roj carbon fiber ntau kuj tseem nce ntau. Qhov nce nyob rau hauv lub zog saum npoo ua rau nws yooj yim dua rau cov pa roj carbon fiber kom raug muab pov tseg thiab nkag mus ntawm cov khoom sib tw thiab nkag mus rau saum npoo ntawm cov carbon fiber. Nyob rau hauv cov txheej txheem ntawm kev npaj cov composites, cov Matrix tau tuaj yeem faib cov roj carbon ntau dua. Qhov no tsis tsuas yog txhim kho cov tshuab cov khoom siv hluav taws xob ntawm cov khoom siv sib xyaw, tab sis kuj tseem txhim kho nws lwm cov khoom, xws li corrosion tsis kam thiab thermal stability.
Ua kom cov pa roj carbon fiber ntau muaj ntau yam zoo rau kev npaj ntawm cov roj carbon fiber ntau sib xyaw.
Nyob rau hauv cov nqe lus ntawm cov neeg kho tshuab, cov interfacial bonding zog ntawm kev qhibcarbon fibersThiab cov khoom sib npaug tau zoo dua qub, uas ua rau cov compogites kom hloov pauv kev kub siab dua thaum raug rau sab nraud. Qhov no txhais tau tias cov khoom siv mechanical ntawm cov composites xws li muaj zog thiab modulus tau txhim kho. Piv txwv li, hauv Aerospace teb, uas yuav tsum muaj cov tshuab roj carbon roj carbon monoxide muaj peev xwm tiv thaiv cov roj carbon fiber ntau dua thiab txhim kho kev nyab xeeb thiab kev ntseeg tau ntawm lub dav hlau. Hauv kev ntaus pob ncaws pob cov khoom lag luam, xws li cov kauj vab tsheb kauj vab, cov koom ua si ntaus pob, ua kom muaj zog ua kom zoo dua qub thiab tawv nqaij txo qis thiab txhim kho cov neeg ncaws pob.
Nyob rau hauv cov nqe lus ntawm corrosion tsis kam, vim kev qhia txog cov pab pawg ua haujlwm ntawm cov pa roj carbon monoxide uas ua haujlwm tau, yog li txhim kho cov pa roj av uas ua haujlwm rau corrosion. Hauv qee qhov kev mob hnyav, xws li ib puag ncig marine, kev lag luam chemical, thiab lwm yamCarbon Fiber compositestuaj yeem tiv thaiv cov yaig ntawm cov xov xwm corrosive thiab txuas ntxiv lub neej pabcuam. Qhov no yog qhov tseem ceeb tshaj plaws rau qee cov khoom siv thiab cov qauv uas tau siv hauv cov chaw hnyav ib puag ncig ntev.
Nyob rau hauv cov nqe lus ntawm thermal stability, zoo interfacial bonding ntawm qhib carbon fiber thiab matrix cov khoom tuaj yeem txhim kho lub thermal stability ntawm cov composites. Raws li kev kub ib puag ncig, cov composites tuaj yeem tswj cov khoom siv neeg kho tshuab thiab seem ruaj khov, thiab tsis tshua muaj kev puas tsuaj thiab kev puas tsuaj. Qhov no ua rau cov pa roj carbon fiber ntau muaj cov kev thov hluav taws xob dav hauv cov chaw siab thiab cov cav kub sov.
Nyob rau hauv cov nqe lus ntawm kev ua tau zoo, cov carbon fempers tau nce ntxiv kev ua si thiab kev sib zog zoo dua nrog cov khoom sib xws. Qhov no ua rau nws yooj yim rau cov khoom sib xyaw rau infiltrate thiab kho ntawm cov carbon fiber thaum lub sij hawm npaj ntawm cov khoom siv sib xyaw, yog li kev txhim kho kev ua haujlwm thiab cov khoom zoo. Nyob rau tib lub sijhawm, kev ua haujlwm ntawm cov pa roj carbon fiber ntau kuj tseem txhim kho, tso cai rau cov ntawv thov sib txawv thiab kom tau ua ntau yam kev ua lag luam sib txawv.
Yog li ntawd, kev ua kom tau kev kho mobcarbon fibersYog qhov txuas tseem ceeb hauv kev npaj ntawm kev ua tau zoo carbon fiber ntau composites. Los ntawm kev kho mob kom ua haujlwm, cov qauv txheej txheem saum npoo ntawm cov roj carbon fiber ntau, thiab txhim kho cov pab pawg sib txuam, yog li txhawm rau txhim kho cov pab pawg sib txuas lus ntawm cov khoom siv hluav taws xob roj carbon fiber ntau thiab cov khoom siv matrix, thiab nteg lub hauv paus Rau kev npaj ntawm Carbon fiber ntau sib xyaw nrog cov kws kho mob carrigites, corrosion tsis kam, thermal ruaj thiab ua kev ua haujlwm. Nrog kev ua haujlwm txuas ntxiv ntawm kev tshawb fawb thiab thev naus laus zis, nws ntseeg tau tias cov thev naus laus zis roj carbon fiber dua tshiab yuav ua rau muaj kev txhawb nqa dav dav ntawm cov roj carbon fiber ntau.
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Lub Sijhawm Post: Sep-04-2024