Cov khoom muaj zog
Ib qho tshwj xeeb ntawm carbon fiber yog nws lub zog siab. Lub zog tensile ntawm cov khoom no yog siab tshaj 3500MPa, ua rau nws cov khoom ntawm kev xaiv nyob rau hauv ntau yam kev txhawb zog. Kev siv cov pa roj carbon fiber ntau tsis tsuas yog txhim kho lub zog ntawm cov qauv, tab sis kuj tsis tshua hloov qhov loj ntawm cov khoom qub tom qab kev tsim kho, thiab tsis cuam tshuam qhov loj ntawm cov khoom qub. Lub zog siab thiab qhov ruaj khov no ua rau cov pa roj carbon fiber zoo hauv ntau yam kev siv.
Kub kub kuj
Cov pa roj carbon fiber ntau muaj qhov zoo ntawm qhov kub thiab txias. Nws tsis yaj los yog soften nyob rau hauv tsis-oxidizing cua mus txog 3000 degree, qhia tau hais tias nws zoo heev high-kub stability. Tsis tas li ntawd, txawm nyob rau hauv qhov kub thiab txias ib puag ncig ntawm cov kua nitrogen, cov pa roj carbon fiber tseem mos thiab yuav tsis nkig. Cov khoom no ua rau nws yog ib qho khoom siv zoo tshaj plaws rau kev tsim khoom siv high-tech xws li aerospace thiab aviation.
Me me thermal expansion coefficient
Cov pa roj carbon fiber ntau muaj cov coefficient me me ntawm thermal expansion, uas tso cai rau nws nthuav thiab cog lus rau qhov tsawg kawg nkaus thaum kub hloov. Qhov qis coefficient ntawm thermal expansion muab cov pa roj carbon fiber ntau ntawm kev ruaj ntseg, tshwj xeeb tshaj yog nyob rau hauv kev siv tseem ceeb xws li telescopes thiab lwm yam khoom siv kho qhov muag. Tsis tas li ntawd, cov thermal conductivity ntawm carbon fiber txo qis thaum kub nce, cia nws tiv taus txias txias thiab cua kub ceev, thiab yuav tsis tawg txawm tias nws poob sai heev los ntawm qhov kub thiab txias mus rau ib txwm kub. Cov ntaub ntawv sib xyaw ua los ntawm cov pa roj carbon fiber kuj tswj qhov kev nthuav dav ruaj khov thiab yog li siv tau raws li cov qauv ntsuas ntsuas.
Super corrosion kuj
Carbon fiber ntau yog heev corrosion-resistant. Cov yam ntxwv no feem ntau yog vim muaj tshuaj lom neeg ruaj khov ntawm cov khoom carbon, uas tso cai rau nws kom muaj kev ruaj ntseg zoo hauv cov kua qaub thiab alkali ib puag ncig. Tsis tas li ntawd, carbon fiber yog graphite siv lead ua qauv tsim los ntawm high-temperature graphitization. Lub cev qauv no ruaj khov heev. Yog li ntawd, nyob rau hauv ib puag ncig zoo tib yam, cov khoom siv hlau zoo tib yam lossis cov khoom siv txhuas yog qhov ua rau xeb, tab sis cov khoom siv fiber ntau yuav tsis. Txawm li cas los xij, nws yuav tsum tau muab sau tseg tias carbon fiber tsis tuaj yeem tiv thaiv kev yaig ntawm qhov siab ntawm cov kua qaub thiab alkalis.
Zoo hluav taws xob conductivity
Cov pa roj carbon fiber ntau muaj cov khoom siv hluav taws xob zoo. Ntawm 25 degree, qhov tshwj xeeb tsis kam ntawm high-modulus carbon fiber yog 77Ω·cm, thaum lub zog tshwj xeeb ntawm cov roj carbon fiber ntau yog 1500Ω·cm. Cov khoom siv hluav taws xob no feem ntau yog los ntawm carbon fiber nws tus kheej, thaum lub matrix resin yog ib qho insulator. Yog li ntawd, CFRP composited nrog carbon fibers kuj muaj anisotropic conductive zog.
Siab zog thiab elastic modulus
Lub zog thiab elastic modulus ntawm carbon fiber yog siab heev. Nws lub zog tensile tuaj yeem siab li 3000 ~ 4000MPa, uas yog 4 npaug siab dua li cov hlau thiab 6-7 npaug siab dua li txhuas. Nyob rau tib lub sijhawm, nws cov qauv elastic kuj tuaj yeem siab li 600GPa, uas yog ntau dua li cov ntaub ntawv zoo tib yam. Qhov no lub zog siab thiab siab elastic modulus ua rau carbon fiber dav siv nyob rau hauv aviation, tub rog thiab high-end manufacturing teb.
Zoo thermal conductivity
Lub thermal conductivity ntawm carbon fiber yog superior thiab ze rau cov hlau. Cov cuab yeej no ua rau nws yog qhov kev xaiv zoo tshaj plaws rau cov khoom siv hnub ci thiab cov khoom siv thermally conductive vaj tsev uas hloov cov cua sov sib npaug. Muab piv rau cov khoom siv tsis zoo thiab cov organic, carbon fiber muaj thermal conductivity zoo dua vim nws cov qauv tshwj xeeb thiab muaj pes tsawg leeg.
Tsawg kub tsis kam
Cov pa roj carbon fiber muaj qhov ua tau zoo heev uas tsis muaj qhov kub thiab txias nyob rau hauv ib puag ncig uas tsis tshua muaj kub. Tshwj xeeb, txawm tias qhov kub qis ntawm -180 degree, carbon fiber tseem tuaj yeem tuav nws elasticity thiab yuav tsis nkig. Tsis tas li ntawd, carbon fibers kuj tsis embrittle thaum raug cov kua nitrogen kub. Cov yam ntxwv no tso cai rau cov pa roj carbon fiber ntau los tswj nws qhov kev ua tau zoo thiab cov qauv nyob rau hauv qhov tsis muaj qhov kub thiab txias, muab ntau yam kev siv rau ntau yam kev siv.
radioresistant
Cov pa roj carbon fiber ntau muaj cov khoom tiv thaiv hluav taws xob zoo heev. Cov yam ntxwv no txhais tau hais tias thaum carbon fiber cuam tshuam los ntawm cov khoom siv hluav taws xob, nws tuaj yeem tswj hwm nws qhov kev ua tau zoo thiab cov qauv thiab tsis yooj yim puas. Qhov kev tiv thaiv hluav taws xob tsis yog tsuas yog muab cov pa roj carbon fiber ntau hauv kev lag luam nuclear thiab kev kho mob, tab sis kuj muab kev lees paub rau nws siv nyob rau hauv huab cua.
lub teeb nyhav
Ib qho tseem ceeb feature ntawm carbon fiber yog nws lub teeb yuag. Piv nrog rau cov hlau zoo tib yam, qhov ceev ntawm carbon fiber tsuas yog 1/4 ntawm cov hlau. Thaum tsim khau, carbon fiber ntau tuaj yeem txo qhov hnyav ntawm khau. Tsis tas li ntawd, hauv kev tsim tsheb, kev sib tsoo yog qhov tseem ceeb cuam tshuam rau kev ua haujlwm. Cov pa roj carbon fiber ntau yog siv dav hauv cov tsheb ua haujlwm siab vim nws cov khoom siv zoo heev. Cov khoom ua los ntawm carbon fiber hnyav ib nrab ntau npaum li cov hlau thiab ib feem peb tsawg dua aluminium alloy. Lub teeb yuag no tseem pab cov tsheb hluav taws xob ntshiab ua kom lawv cov kev caij nkoj thiab ua tiav cov hom phiaj txuag hluav taws xob.