Ngokombiko wakamuva, isizukulwane esilandelayo sezinto eziyinhlanganisela singaqapha esaso isimo sezempilo sesakhiwo, futhi sibe yinto evamile.
Izinhlanganisela ze-carbon fibre zilula futhi ziqinile futhi ziyizinto ezibalulekile zesakhiwo ezimotweni, izindiza nezinye izinto zokuhamba. Aqukethe ama-polymer substrates, njengama-epoxy resins, ashunyekwe ngemicu yekhabhoni eqinisiwe. Ngenxa yezakhiwo ezihlukene zemishini yezinto ezimbili, imicu izowa ngaphansi kwe-substrate ngaphansi kokucindezeleka ngokweqile noma ukukhathala. Lokhu kusho ukuthi umonakalo esakhiweni esiyinhlanganisela ye-carbon fiber ungase ufihleke ngaphansi kwendawo futhi awukwazi ukubonwa ngeso lenyama, okungaholela ekuhlulekeni okuyinhlekelele.
"Ngokuqonda ingaphakathi lezinhlanganisela, ungakwazi ukwahlulela kangcono impilo yazo futhi wazi ukuthi kukhona yini umonakalo okudingeka ulungiswe," kusho uRidge Chris Bowland, umcwaningi wenhlangano.
I-Oak Ridge National Laboratory eMnyangweni Wezamandla wase-US (i-Oak National Laboratory) Wigner. "Muva nje, u-Amit Naskar, inhloko yethimba lekhabhoni nezinhlanganisela e-Bowland nase-ORNL, usungule indlela yomugqa ogoqayo yokugoqa ama-conductive carbon fibers kuma-semiconductor silicon carbide nanoparticles. Ama-nanomaterials ashumekwe ezintweni eziyinhlanganisela ezinamandla kunezinye izinhlanganisela eziqiniswe yi-fiber futhi zinekhono elanele le-fiber eqinile esakhiweni sazo. i-polymer, ama-fibers enza igridi yamandla, futhi ama-composites amaningi aqhuba ugesi we-Semiconductor nanoparticles angabhubhisa le nqubo kagesi ngaphansi kwesenzo samandla angaphandle, enezela imisebenzi yemishini nekagesi kuma-composites, ukuxhuma kwezintambo ezimboziwe kuzobhujiswa futhi ukuphikiswa kwezinto kungase kushintshe ikhompuyutha yendiza ukukhombisa ukuthi iphiko lingaphansi kwengcindezi enkulu futhi liphakamisa ukuhlolwa I-rolling strip demonstration ye-ORNL ifakazela ngokomthetho ukuthi indlela ingakhiqiza isizukulwane esilandelayo semicu ehlanganisiwe ehlanganisiwe ngesilinganiso esikhulu.Izinhlanganisela zokuzibona, mhlawumbe ezenziwe ngama-polymer substrates angabizi kakhulu kanye ne-carbon fibers engabizi kakhulu, ingathola i-oda le-carquitous emikhiqizweni ye-ubi imicu eshumekwe kuma-nanoparticles, abacwaningi bafake ama-spools e-carbon fiber asebenza kakhulu kuma-roller, futhi ama-roller acwilisa imicu kuma-epoxy resins, aqukethe ama-nanoparticles atholakalayo emakethe, ububanzi bawo obucishe bube ububanzi begciwane (45-65 nm).
Khona-ke imicu yomiswa kuhhavini ukuze kuqiniswe ukunamathela. Ukuze kuhlolwe amandla emicu eshumekwe kuma-nanoparticles anamathiselwe ku-polymer substrate, abacwaningi benza imishayo eyinhlanganisela ye-fiber-reinforced, ehlelwe nge-One Direction.I-Bowland yenze ukuhlolwa kokucindezeleka lapho iziphetho ze-cantilever zazilungisiwe, kuyilapho umshini ohlola izakhiwo zemishini wasebenzisa ukugxilwa phakathi kwe-beam kuze kube yilapho i-beam ihluleka. Ukuze atadishe ikhono lokuzwa lezinto eziyinhlanganisela, wafaka ama-electrode nhlangothi zombili ze-cantilever beam. Emshinini owaziwa ngokuthi "i-Dynamic mechanical analyzer," usike ingxenye eyodwa ukuze i-cantilever imile. Umshini usebenzisa amandla ngakolunye uhlangothi ukugoba induku yokumiswa kuyilapho i-Bowland iqapha ushintsho lokumelana. U-ORNL, umcwaningi wangemva kodokotela u-Ngoc Nguyen, wenze izivivinyo ezengeziwe ku-Fourier Transform Infrared spectrometer ukuze kufundwe amabhondi amakhemikhali kuzinhlanganisela futhi kuthuthukiswe ukuqonda kwamandla athuthukisiwe emishini abonwa. Abacwaningi baphinde bahlola ikhono lamandla alahlayo wezinhlanganisela ezenziwe ngamanani ahlukene we-nanoparticles (akalwa ngokuziphatha kokudambisa ukudlidliza), okungenza kube lula ukusabela kwezinto zokwakha ekushaqekeni, ukudlidliza nokunye ukucindezeleka kanye nemithombo yobunzima. Ekugxilweni ngakunye, ama-nanoparticles angathuthukisa ukuchithwa kwamandla (kusuka ku-65% kuya ku-257% kuya kumazinga ahlukahlukene). U-Bowland kanye no-Naskar bafake isicelo selungelo lobunikazi lenqubo yokwenziwa kwezinhlanganisela ze-carbon fibre ezizizwa ngokwakho.
"Ama-nanomaterials afakiwe anikeza indlela entsha yokusebenzisa ama-nanomaterials amasha athuthukiswayo." kusho u-Bowland. Ucwaningo lusekelwe amaphrojekthi ocwaningo nentuthuko aqondiswa Ilabhorethri ye-ORNL, eshicilelwe kujenali ACS Applied Materials and Interfaces (Applied Materials & Interfaces) ye-American Chemical Society.
Isikhathi sokuthumela: Dec-07-2018