Tom qab ntau xyoo ntawm txoj kev loj hlob, kev ua tau zoo siab tshaj cov khoom siv carbon fiber tau dhau los ua ib qho ntawm cov khoom siv zoo tshaj plaws rau kev txhim kho aerospace, kev tsheb nqaj hlau tsheb thauj mus los, cov tshuab ntse, cov cuab yeej kho mob siab, thiab ntau yam khoom siv pej xeem. Cov khoom siv carbon fiber ntau muaj qhov ua tau zoo xws li lub teeb yuag, lub zog siab, tsis muaj creep, corrosion kuj, thiab qaug zog ua haujlwm. Txawm li cas los xij, thaum ntsib cov kev xav tau tshwj xeeb, tseem muaj qee yam teeb meem lossis qhov tsis xws luag. Yuav ua li cas los txhim kho cov teeb meem no zoo thiab txhim kho daim ntawv thov tus nqi ntawm cov khoom siv fiber ntau yog qhov teeb meem uas yuav tsum tau tshawb nrhiav hauv kab lus no.
1. Toughening
Carbon fiber reinforced composite cov ntaub ntawv muaj lub zog siab thiab kev ua tau zoo, tab sis cov txheej txheem molding tshwj xeeb ntawm cov ntaub ntawv sib xyaw tuaj yeem muaj kev cuam tshuam tsis zoo rau lawv cov kev cuam tshuam, tawg toughness, thiab delamination zog. Cov ntaub ntawv carbon fiber ntau yuav tsim cov txheej txheem tsis ua haujlwm sib txawv hauv cov khoom siv kho tshuab. Thaum lub zog tso tawm ntau tshaj lub zog yuav tsum tau los tsim ib qho chaw tshiab los yog tsim cov yas deformation nyob ze ntawm qhov tawg, qhov tshwm sim loj tuaj yeem tshwm sim thaum cov theem no ntawm kev tawg tawm.
Ntxiv cov tshuaj toughening rau resins yog ib txoj hauv kev los daws cov brittleness thiab yooj yim tshwm sim ntawm cov kab nrib pleb me me hauv cov ntaub ntawv carbon fiber. Txawm li cas los xij, toughness txhim khu cov khoom feem ntau muaj cov tsis zoo dispersion thiab feem ntau tsim cov cheeb tsam ntawm siab thiab qis particle ntom, uas tuaj yeem txo qhov kev ua tau zoo tag nrho ntawm cov khoom sib xyaw. Tam sim no, cov teb chaws tsim kho xws li Europe thiab Amelikas tab tom pib nteg nanofiber daim nyias nyias ntawm cov txheej prepreg. Cov daim nyias nyias no tsis ua kom cov tuab thiab qhov hnyav ntawm prepreg, tab sis tuaj yeem ua raws li cov khoom siv nanoscale reinforcing rau nkig resin matrix nyob rau hauv lub interlayer cheeb tsam, thaum kawg tsim ib tug tougher resin (uas yuav siv tau ua ke nrog rau lwm cov toughening tshuab). Qhov kev daws teeb meem no muaj txiaj ntsig zoo rau kev txhim kho kev tiv thaiv delamination, kev puas tsuaj rau kev ua siab ntev, thiab tiv thaiv kev qaug zog ntawm cov ntaub ntawv carbon fiber ntau, txo qhov tshwm sim ntawm cov kab nrib pleb me me nyob rau hauv siab lossis cuam tshuam.
2. Thermoplastic
Tam sim no, feem ntau siv carbon fiber ntau cov ntaub ntawv nyob rau hauv Tuam Tshoj yog tseem tsuas yog raws li epoxy resin. Cov khoom siv thermosetting carbon fiber ntau tuaj yeem ua tau raws li kev lag luam lossis pej xeem cov kev xav tau, tab sis rau qee cov khoom siv nrog kev ua haujlwm siab heev, tseem muaj qee qhov sib txawv ntawm qhov kub thiab txias thiab hnav tsis kam ntawm epoxy raws li carbon fiber ntau cov ntaub ntawv. Vim li no, ntau lub tuam txhab hauv kev lag luam carbon fiber tau nquag nrhiav kev daws teeb meem.
Rau cov pa roj carbon fiber ntau cov khoom siv tshuab, nws tsis yog nyuaj rau kev ua tiav ob qho tib si siab zog thiab kub ua haujlwm, tab sis kuj muaj kev ua tau zoo xws li hnav tsis kam yuav ua rau muaj kev cuam tshuam. Qhov laj thawj tseem ceeb vim li cas cov ntaub ntawv carbon fiber ntau tsis tiv taus qhov kub thiab txias yog vim cov khoom siv matrix. Yav dhau los, qhov kub tsis kam ntawm cov ntaub ntawv sib xyaw feem ntau tau txhim kho los ntawm kev ntxiv bismaleimide thiab lwm txoj hauv kev, tab sis qhov kev ua tau zoo kawg nkaus tseem tsis zoo heev. Tam sim no, lub zos ntawm unidirectional prepreg xws li txuas ntxiv carbon fiber reinforced PPS / PES / PA6 / PEEK tuaj yeem hloov thermosetting carbon fiber cov ntaub ntawv hauv cov khoom tshwj xeeb lossis high-end, uas tuaj yeem txhim kho qhov zoo ntawm cov khoom siv fiber ntau xws li lub zog siab, kub tsis kam, zoo hnav tsis kam, corrosion kuj, thiab muaj kev nyab xeeb zoo. Nws tau dhau los ua ib qho ntawm cov kev daws teeb meem zoo tshaj plaws rau cov khoom siv carbon fiber ntau uas tsis tiv taus kub thiab hnav.