Cov pa roj carbon fiber yog cov khoom siv fiber ntau. Nws yog ib yam tshiab ntawm cov khoom uas muaj zog ntau dua li cov hlau, me me ntom dua txhuas, muaj zog corrosion kuj zoo dua stainless hlau, siab kub ua hauj lwm kub-resistant steel, thiab conductive zoo li tooj liab, muaj ntau yam tseem ceeb hluav taws xob, thermal thiab mechanical zog. Cov pa roj carbon fiber ntau yog tsim rau hauv cov pa roj carbon fiber reinforced yas, uas yog cov khoom siv sib xyaw rau kev siv. Txhua cov pa roj carbon fiber ntau yog tsim los ntawm ntau txhiab cov pa roj carbon me me, nrog txoj kab uas hla ntawm 5 μm ~ 8 μm. Nyob rau theem atomic, carbon fiber zoo ib yam li graphite, muaj cov txheej txheem ntawm cov pa roj carbon atoms teem rau hauv hexagonal duab. Qhov sib txawv ntawm carbon fiber thiab graphite yog kev sib txuas ntawm cov khaubncaws sab nraud povtseg. Graphite yog cov qauv siv lead ua, nws qhov kev sib txuas interlayer yog xoob, thaum carbon fiber tsis yog cov qauv siv lead ua, kev sib txuas ntawm interlayer tsis sib xws, uas tuaj yeem tiv thaiv slippage thiab txhim khu lub zog ntawm qhov teeb meem.
Feem ntau, qhov ceev ntawm carbon fiber yog 1750kg / m3, lub thermal conductivity yog siab, tiam sis lub hwj chim kis tau tus mob yog tsawg, thiab tshwj xeeb kub muaj peev xwm ntawm carbon fiber kuj qis dua tooj liab. Thaum rhuab, carbon fiber ua thicker thiab luv. Txawm hais tias lub ntuj xim ntawm carbon fiber yog dub, cov kws tshawb fawb tuaj yeem dye nws hauv cov xim sib txawv.