Masiku angapo apitawo, pulofesa wa ku yunivesite ya Washington, Aniruddh Vashisth, adafalitsa nkhani mu magazini yodziwika bwino yapadziko lonse ya Carbon, ponena kuti adapanga bwino mtundu watsopano wa zinthu zopangidwa ndi ulusi wa kaboni. Mosiyana ndi CFRP yachikhalidwe, yomwe singakonzedwe ikawonongeka, zinthu zatsopano zimatha kukonzedwa mobwerezabwereza.
Ngakhale kuti CFRP yatsopano imasunga mphamvu za makina a zipangizo zachikhalidwe, imawonjezera ubwino watsopano, ndiko kuti, ikhoza kukonzedwa mobwerezabwereza pogwiritsa ntchito kutentha. Kutentha kumatha kukonza kuwonongeka kulikonse kwa zinthuzo, ndipo kungagwiritsidwenso ntchito kuwola zinthuzo zikafunika kubwezeretsedwanso kumapeto kwa nthawi yogwirira ntchito. Popeza CFRP yachikhalidwe singathe kubwezeretsedwanso, ndikofunikira kupanga zinthu zatsopano zomwe zingathe kubwezeretsedwanso kapena kukonzedwa pogwiritsa ntchito mphamvu yotentha kapena kutentha kwa wailesi.
Pulofesa Vashisth anati gwero la kutentha lingathe kuchedwetsa kukalamba kwa CFRP yatsopano kwamuyaya. Kunena zoona, chipangizochi chiyenera kutchedwa Carbon Fiber Reinforced Vitrimers (vCFRP, Carbon Fiber Reinforced Vitrimers). Galasi polymer (Vitrimers) ndi mtundu watsopano wa zinthu za polima zomwe zimaphatikiza ubwino wa thermoplastic ndi thermosetting plastics zomwe zinapangidwa ndi wasayansi waku France Pulofesa Ludwik Leibler mu 2011. Zinthu za Vitrimers zimagwiritsa ntchito njira yosinthira ma bond, yomwe imatha kusinthana ma bond a mankhwala m'njira yosinthika ikatenthedwa, komanso nthawi yomweyo kusunga kapangidwe kolumikizidwa, kuti ma polima a thermosetting azitha kudzichiritsa okha ndikusinthidwanso ngati ma polima a thermoplastic.
Mosiyana ndi zimenezi, zinthu zomwe zimatchedwa carbon fiber composite materials ndi carbon fiber reinforced resin matrix composite materials (CFRP), zomwe zingagawidwe m'magulu awiri: thermoset kapena thermoplastic malinga ndi kapangidwe ka resin kosiyana. Zinthu zomwe zimayikidwa mu thermosetting nthawi zambiri zimakhala ndi epoxy resin, zomwe zimamangirira zinthuzo kukhala thupi limodzi. Zinthu zomwe zimapangidwa mu thermoplastic zimakhala ndi ma resin ofewa a thermoplastic omwe amatha kusungunuka ndikukonzedwanso, koma izi zidzakhudza mphamvu ndi kuuma kwa zinthuzo.
Ma bond a mankhwala mu vCFRP amatha kulumikizidwa, kuchotsedwa, ndikulumikizidwanso kuti pakhale "malo apakati" pakati pa thermoset ndi zinthu za thermoplastic. Ofufuza za polojekitiyi amakhulupirira kuti Vitrimers ikhoza kukhala m'malo mwa ma resin a thermosetting ndikupewa kusonkhanitsa zinthu zosakanikirana za thermosetting m'malo otayira zinyalala. Ofufuza amakhulupirira kuti vCFRP idzakhala kusintha kwakukulu kuchokera kuzinthu zachikhalidwe kupita kuzinthu zosinthika, ndipo idzakhala ndi zotsatira zingapo pankhani ya mtengo wonse wa moyo, kudalirika, chitetezo, ndi kukonza.
Pakadali pano, masamba a turbine ya mphepo ndi amodzi mwa madera omwe CFRP imagwiritsidwa ntchito kwambiri, ndipo kubwezeretsa masamba kwakhala vuto nthawi zonse m'munda uno. Pambuyo pa nthawi yogwira ntchito, masamba ambirimbiri omwe adachotsedwa ntchito adatayidwa m'malo otayira zinyalala monga malo otayira zinyalala, zomwe zidakhudza kwambiri chilengedwe.
Ngati vCFRP ingagwiritsidwe ntchito popanga masamba, ikhoza kubwezeretsedwanso ndikugwiritsidwanso ntchito potenthetsa mosavuta. Ngakhale tsamba lokonzedwa silingathe kukonzedwanso ndikugwiritsidwanso ntchito, mwina likhoza kuwola ndi kutentha. Zinthu zatsopanozi zimasintha moyo wa thermoset kukhala moyo wozungulira, womwe udzakhala sitepe yayikulu yopita ku chitukuko chokhazikika.
Ngati vCFRP ingagwiritsidwe ntchito popanga masamba, ikhoza kubwezeretsedwanso ndikugwiritsidwanso ntchito potenthetsa mosavuta. Ngakhale tsamba lokonzedwa silingathe kukonzedwanso ndikugwiritsidwanso ntchito, mwina likhoza kuwola ndi kutentha. Zinthu zatsopanozi zimasintha moyo wa thermoset kukhala moyo wozungulira, womwe udzakhala sitepe yayikulu yopita ku chitukuko chokhazikika.
Nthawi yotumizira: Novembala-09-2021
