Cov Nanotubesyog yam tsis txaus ntseeg. Lawv tuaj yeem ua kom muaj zog dua li cov hlau thaum ua nyias dua li tib neeg cov plaub hau.

Lawv kuj yog qhov ruaj khov heev, lub teeb yuag, thiab muaj hluav taws xob tsis txaus ntseeg, thermal thiab neeg kho mob. Vim li no, lawv tuav lub peev xwm rau kev txhim kho ntawm ntau cov ntaub ntawv yav tom ntej.

Lawv kuj tseem yuav tuav tus yuam sij kom ua cov ntaub ntawv thiab cov qauv ntawm lub neej tom ntej, xws li qhov chaw nce nkoj.

Ntawm no, peb tshawb nrhiav yam lawv yog, lawv tau ua li cas thiab cov ntawv thov lawv zoo li cas muaj. Qhov no tsis yog txhais tau tias yog cov lus qhia sab kawg thiab tsuas yog tsim los ua cov ntsiab lus ceev.

Dab tsi yogCov Nanotubesthiab lawv cov peev xwm?

Cov Nanotubes (CNTs rau luv luv), raws li lub npe qhia, yog feeb cylindrical qauv ua los ntawm carbon. Tab sis tsis yog ib qho carbon, CNT lub sib zog ntawm cov ntawv uas siv los ntawm ib txheej ntawm carbon molecules hu ua graphene.

Lawv zoo li tuaj rau hauv ob daim ntawv loj:

1. Ib Leeg Walled Carbon Nanotubes(SWCNTS) - Cov no yuav muaj lub cheeb ntawm tsawg dua 1 nm.

2. Ntau lub walled carbon nanotubes(Mwcnts) - cov no muaj ob peb lub siab-interlically-interlically-interlically-interlically-interlically-interlically-interlically-interlically-interlically-incotubes thiab zoo li muaj diameters uas tuaj yeem ncav cuag ntau tshaj 100 nm.

Hauv qee kis, CNTs tuaj yeem muaj qhov sib txawv ntawm ob peb micrometers rau centimeters.

Raws li cov hlab yog tshwj xeeb ua los ntawm graphene, lawv qhia ntau ntawm nws cov peev txheej nthuav. Cnts, piv txwv li, raug sib raug zoo, tau sib raug zoo nrog SP2 Bonds - cov no yog qhov muaj zog heev ntawm qib molecular.

Cov Nanotubes kuj muaj txoj hlua khi ua ke ntawm cov van der waagals rog. Qhov no muab lawv nrog lub zog siab thiab qhov hnyav. Lawv kuj zoo li yuav tsum muaj hluav taws xob zoo thiab ua kom cov khoom siv thermally-ua.

"Ib tug neeg CNT phab ntsa tuaj yeem yog xim hlau lossis semiconding nyob ntawm qhov kev qhia ntawm lub lattice nrog rau lub raj axis, uas yog hu ua chairality."

Cov Nanotubes kuj muaj lwm cov khoom tawg thiab cov neeg kho cua sov uas ua rau lawv txaus nyiam rau kev tsim cov ntaub ntawv tshiab.

Yuav ua li cas cov pa roj carbon nanotubes ua?

Raws li peb tau pom, cov nanotubes muaj qee qhov khoom txawv heev. Vim tias qhov no, CNTs muaj ntau cov kev siv thiab ntau yam.

Qhov tseeb, raws li xyoo 2013, raws li Wikipedia ntawm Science Direct, Carbon nanotube ntau tshaj ntau txhiab tons ib xyoo. Cov Nanotubes muaj ntau cov ntawv thov, suav nrog kev siv hauv:

• Lub zog cia kev daws teeb meem
• Ntaus qauv
• Composite qauv
• Kev lag luam tsheb, suav nrog cov muaj peev xwm hauv hydrogen roj tsheb tsheb
• Nkoj Hulls
• Ntaus Pob Ncaws Pob
• Lub taub lim dej
• Nyias-zaj duab xis hluav taws xob
• Txheej
• Actuatators
• Electromagnetic Tiv Thaiv
• Tsev luam ntawv
• Cov ntawv thov biomedical, suav nrog cov ntaub so ntswg ntawm cov pob txha thiab cov leeg nqaij, xa tshuaj, biosensors thiab ntau dua

Dab tsi yogNtau lub walled carbon nanotubes?

Raws li peb tau pom, multwalled carbon nanotubes yog cov nanotubes ua los ntawm ob peb concentrically interlinked nanotubes. Lawv zoo li muaj diameters uas tuaj yeem ncav cuag ntau tshaj 100 nm.

Lawv tuaj yeem ncav cuag ntau dhau ntawm centimeters nyob rau hauv ntev thiab zoo li muaj kev sib piv uas sib txawv ntawm 10 thiab 10 lab.

Ntau phab ntsa nanotubes tuaj yeem muaj ntawm 6 thiab 25 lossis ntau dua cov phab ntsa.

MWCNts muaj qee cov khoom tau zoo uas tuaj yeem siv tau nyob rau hauv ntau ntawm cov ntawv thov kev lag luam. Cov no suav nrog:

• Hluav taws xob: MWNTS yog kev coj ua tau zoo thaum ua ke kom ua ke rau hauv ib tus qauv sib chaws. Nws yuav tsum raug sau tseg tias cov phab ntsa sab nraud ib leeg coj ua, sab hauv phab ntsa tsis yog instrumental rau kev ua haujlwm.
• Morphology: MWNTS muaj qhov sib piv siab, nrog ntev ntau tshaj 100 zaug lub cheeb, thiab qee qhov ntau dua. Lawv qhov kev ua tau zoo thiab kev thov raws tsis yog rau cov nam piv, tab sis kuj nyob rau theem ntawm cov leeg, uas nyeg ntawm ob qho tib si lub degree thiab dimension ntawm kev tsis xws luag nyob rau hauv cov leeg.
• Lub cev: tsis pub dawb, ib tus neeg, MWNTS muaj lub zog zoo tshaj plaws thiab thaum ua ke nrog lub zog thermoplastic lossis kev sib xyaw ua ke, tuaj yeem ua kom muaj zog.