PFINZTAL, Lub teb chaws Yelemees - Raws li cov roj fiber reinforced yas tseem yog ib qho tseem ceeb ntawm cov aircraft, nws ntxiv rau qhov kev xav tau ntawm cov qauv siv sustainable. Cov kws tshawb fawb ntawm Fraunhofer lub koom haum rau tshuaj Technology (ICT) tau nyuam qhuav tsim ib cov txheej txheem rau kev siv cov khoom siv roj carbon fiber ntau thiab roj cov khoom siv roj.
Tus kws ua lag luam ICT Elisa Seiler hais tias: "Hnub no, dav dav aircraft muaj ntau tshaj 50% cov roj carbon fiber reinforced yas (CFRP)." Tus nqi ntawm cov khoom siv CFRP cov khoom siv loj loj. Piv txwv li, Airbus 350 muaj tag nrho qhov hnyav ntawm ntau tshaj 65 tons. Ntxiv nrog rau qhov no, lwm yam kev khib nyiab muaj tshwm sim thaum lub sij hawm tsim cov tshuaj. ""
Seiler thiab nws cov npoj yaig koom rau hauv Graphit 2.0 qhov project, uas tau tsim cov txheej txheem rau cov roj teeb thiab roj cov khoom siv ntawm cov khoom siv roj carbon rov ua dua tshiab. Lawv nyuam qhuav tsim ib daim qauv ntawm ib daim ntawv phom.
Lub hom phiaj ntawm qhov Graphite 2.0 yog tsim los tsim cov txheej txheem uas tsim cov khoom siv roj coj mus siv ua theem siab rau cov nqi siab zog xws li cov roj teeb liab.
Hauv thawj feem ntawm qhov project, engineers tsim ib txoj hauv kev tau txais lwm yam ntaub ntawv raw los ntawm daim fibers ntawm mechanical thiab thermal processing. Cov ntaub ntawv thib ob no yog siv los ua tus qauv ntawm graphite. Hauv seem ntawm ob feem ntawm qhov project, secondary graphite tau sim nyob rau hauv ib daim ntawv phom sij rau lub redox khiav roj teeb.
Seiler hais tias: "Fais fab tsav yog tam sim no ib lub ntsiab lus loj hauv kev lag luam aviation." "Cov neeg ua lag luam tuaj yeem ncaj qha ua cov khoom txuag qub txuag ntawm qhov txiaj ntsim qub los ntawm kev hloov cov ntaub ntawv los ntawm ib daim ntawv thov mus ntxiv.
Seyle taw tes tias: "Cov roj carbon fiber yog hluav taws xob ua thiab tsim kom muaj kev hloov rau natural graphite." Natural graphite kuj yog cov roj carbon. " "[Cov] cov khoom nyhav nyaj nuav yuav tsum tam nuav los ntawm Tuam Tshoj ntawm tug nqe ntau. Recycling CFRP kuj tseem siv tau rau hauv cov ntawv siv tshuaj ntxiv. "
Aircraft manufacturers yuav tsum ua raws li EU cov cai uas tau ua txij thaum xyoo 2015 - lawv xav kom 85% ntawm qhov hnyav nruab nrab ntawm lub tsheb yuav tsum tau rov qab siv. Hauv qee lub tebchaws, xws li lub tebchaws Yelemes, CFRP raug txwv los ntawm cov chaw pov tseg, thiab cov nroj tsuag pov tseg yuav tsis kam lees txais cov ntaub ntawv zoo li no.
Seaib thiab nws cov npoj yaig tsim ib txoj kev rov qab tau cov roj ntawm lub hnab yas. Lawv siv microwave hluav taws xob los hlawv ib lub hnab yas me me ntawm cov fibers. Kev ruaj ntseg yuav tsum tau ua nyob rau hauv cov kev mob nkeeg kom lub cev tsis kub hnyiab thaum kub txog 900 ° C
Seiler tau hais tias: "Qhov no hu ua pyrolysis decomposition." "Qhov zoo ntawm microwave cov hluav taws xob yog lub zog ua haujlwm kom zoo dua. Lub qhov cub tsis tas yuav tsum tau ua kom sov, tsuas yog cov khoom lawv tus kheej yuav tsum tau ua kom sov.
"Peb cov tub ceev xwm polymer embed fibers rau hauv cov ntaub ntawv thermoplastic," explained Seiler. Cov kab ke no muaj cov yam ntxwv zoo sib xws rau graphite thiab tsim nyog rau cov khoom tsim muaj hauv daim npav bipolar.
Seiler claims: "Peb prototypes tau dhau tag nrho cov kev ntsuam xyuas rau cov conductivity, ntom thiab corrosion kuj." "Peb tau pov thawj hais tias nws yog feem ntau ua tau rau siv cov khoom siv CFRP txeem los tsim cov khoom noj muaj roj rau cov roj teeb thiab roj hlwb. Qhov no qhia tau hais tias kev ua dua tshiab yog ib qho kev coj ua.
Seiler tau hais tias: "Cov kauj ruam tom ntej yog los piav txog cov cwj pwm ntawm cov bipolar hauv cov roj teeb ntawm lub xov tooj ntawm tes thiab kawm qhov kev ntsuam xyuas lub neej." "Tom qab ntawd peb xav kho lub tshuab kom peb thiaj ua tau daim phiaj rau khoom siv nrog CFRP los siv dua."
