Zvinoenderana neshumo ichangoburwa, chizvarwa chinotevera chezvakasanganiswa zvinhu zvinokwanisa kutarisisa chimiro chavo chehutano, uye kuve chakajairika.
Carbon fiber composites yakareruka uye yakasimba uye yakakosha zvimiro zvemotokari, ndege uye dzimwe nzira dzekufambisa. Izvo zvinosanganisira polymer substrates, senge epoxy resins, iyo yakamisikidzwa neyakasimbiswa kabhoni fibers. Nekuda kweakasiyana ma mechanic properties ezviviri izvi, mafibers anodonha pasi pe substrate pasi pekunetseka kwakanyanya kana kuneta. Izvi zvinoreva kuti kukuvadzwa kwekabhoni fiber composite dhizaini inogona kunge ichiri yakavanzika pazasi pepamusoro uye haigone kuonekwa neziso rakashama, izvo zvinogona kutungamirira mukukundikana kwakaipisisa.
"Nekunzwisisa mukati meiyo macomposites, unogona kutonga zvirinani hutano hwavo uye kuziva kana paine chero kukuvara kunoda kugadziriswa," Ridge Chris Bowland, muongorori wepachikoro ichi.
Oak Ridge National Laboratory kuUS Dhipatimendi reMagetsi (Oak National Laboratory) Wigner. "Nguva pfupi yapfuura, Amit Naskar, mukuru weboka rekabhoni neanosanganisa kuBowland neORNL, akagadzira nzira inotenderedza yekuputira conductive kabhoni fiber pane semiconductor silicon carbide nanoparticles. Mananomaterials akaiswa mumisanganiswa michina yakasimba kupfuura mamwe mafiber-reinforced composites uye ane hutano hwakakwana hwekugadzira fiber mamonitor. iyo polymer, iyo fibers inoumba girasi remagetsi, uye yakawanda inoumba magetsi semiconductor nanoparticles inogona kuparadza magetsi emagetsi ekunze kwemaitiro emagetsi ekunze, kuwedzera mabasa emagetsi uye emagetsi kune maumbirwo akatambanudzwa, kubatanidzwa kwetambo dzakaputirwa kuchaparadzwa uye kushorwa mumhepo kunokonzera mhepo kombiyuta yendege kuratidza kuti bapiro iri pasi pekumanikidzwa kwakanyanyisa uye inokurudzira muedzo Kuratidzira kwechidimbu cheORNL kunoratidza musimboti kuti nzira yacho inogona kubudisa chizvarwa chinotevera chemitsipa yakavharidzirwa pamwero mukuru.Zvinhu zvekuzviona, zvichida zvakagadzirwa kubva kune zvinogadziriswa zvepolymer substrates uye zvisingadhuri zvekabhoni fibers, zvinogona kuwana kurongeka kwezvigadzirwa zve carquitous mubi mafiber akaiswa mu nanoparticles, vaongorori vakaisa yakakwira-performance kabhoni fiber spools pama rollers, uye ma rollers akanyorovesa mafiber mu epoxy resins, ane anowanikwa nanoparticles pamusika, hupamhi hwayo hunenge hwehupamhi hwehutachiona (45-65 nm).
Fiber dzacho dzinobva dzaomeswa muchoto kuitira kuti chifukidze. Kuti uedze kusimba kwemafiber akaiswa mu nanoparticles akanamirwa kune polymer substrate, vaongorori vakagadzira matanda efiber-reinforced composite, ayo akarongedzerwa muOne Direction.The Bowland yakaita bvunzo yekushushikana umo migumo yecantilever yakagadziriswa, nepo muchina uchiongorora mashandiro emakanika akaiswa kukanda pakati peam kusvika pakakundikana. Kuti adzidze kugona kwekunzwa kwezvinhu zvakaumbwa, akaisa maelectrodes pamativi ese e cantilever beam. Mumuchina unozivikanwa se "Dynamic mechanical analyzer," akacheka mugumo mumwe kuti cantilever irambe yakamira. Muchina uyu unoshandisa simba kune rumwe rutivi kukotamisa danda rekumisa apo Bowland inotarisisa shanduko yekuramba. ORNL, muongorori wepashure Ngoc Nguyen, akaita bvunzo dzekuwedzera muFourier Transform Infrared spectrometer kuti adzidze kemikari zvisungo mumacomposites uye nekuvandudza kunzwisisa kwesimba rakawedzerwa remuchina rinoonekwa. Vatsvakurudzi vakaedzawo kukwanisa kwesimba rinoparadza remakombisi akagadzirwa ehuwandu hwakasiyana hwe nanoparticles (inoyerwa nekudengenyeka kwekunyorovesa maitiro), iyo yaizofambisa mhinduro yezvimiro zvekukatyamadza, kudedera uye kumwe kushushikana uye kushungurudza masosi. Pane imwe neimwe yakasungwa, nanoparticles inogona kuwedzera simba rekuparara (kubva pa65% kusvika ku257% kusvika kune zvakasiyana-siyana). Bowland naNaskar vakanyorera fomu patent yekugadzira inozviona yega kabhoni fiber composites.
"Majasi akaiswa pamuviri anopa nzira itsva yekutora mukana wemananomaterials ari kugadzirwa." Bowland akadaro. Chidzidzo ichi chakatsigirwa nemapurojekiti ekutsvagisa nekusimudzira anotungamirwa neORNL Laboratory, yakaburitswa mupepanhau ACS Applied Materials and Interfaces (Applied Materials & Interfaces) yeAmerican Chemical Society.
Nguva yekutumira: Dec-07-2018