Cov pa roj carbon fiber yog cov khoom siv tshiab nrog cov khoom siv kho tshuab zoo heev. Nws feem ntau yog tsawg dua 1/4 ntawm cov hlau, sib dua li txhuas, tab sis lub zog yog 10 npaug ntawm cov hlau. Cov pa roj carbon fiber ntau tau siv dav hauv ntau yam kev ua tub rog thiab kev lag luam hauv pej xeem, thiab suav tias yog ib tus neeg sawv cev ntawm cov khoom siv tshiab hauv kev lag luam siab, hu ua huab tais ntawm cov ntaub ntawv.
(1) Qhov ceev thiab thermal expansion ntawm carbon fiber. Qhov ceev ntawm carbon fiber yog 1.5-2. Feem ntau nyob ntawm qhov kub ntawm carbonization. Feem ntau tom qab kub siab (3000 degrees Celsius) graphitization kev kho mob, nws qhov ceev tuaj yeem ncav cuag 2.0g / cm3, piv nrog cov khoom siv hlau xws li steel (7.8g / cm3), qhov ceev ntawm carbon fiber ntau qis dua. Cov khoom sib xyaw ua los ntawm nws tuaj yeem tswj nws qhov loj me yam tsis muaj deformation ntawm qhov kub thiab txias.
(2) Lub zog thiab modulus ntawm carbon fiber. Lub zog thiab modulus ntawm carbon fiber sib txawv raws li hom fiber ntau, thiab tuaj yeem ua rau lub zog siab thiab siab modulus fiber ntau nyob rau hauv qee yam mob. Qhov siab tshaj plaws elongation ntawm kev tawg ntawm high-modulus carbon fiber yog 0.35%, high-strength carbon fiber yog 1%, thiab muaj carbon fibers nrog ib tug elongation ntawm 1.5%.
(3) Cov nplaim hluav taws xob thiab hluav taws xob conductivity ntawm carbon fiber. Thaum npaj cov pa roj carbon fiber ntau, nws cov nplaim taws ua haujlwm thiab kub tsis kam yog qhov sib txawv nrog kev kho kub sib txawv. Thaum cov cua sov kho qhov kub yog 200 degree -350 degree, fiber ntau yog inflammable thiab tuaj yeem siv los ua hluav taws xob insulator. Thaum qhov kev kho cua sov kub yog 500-1500 degree, carbon fiber tau tsim, thiab nws cov hluav taws xob conductivity muaj zog heev, thiab nws muaj nws tus kheej lubrication.
(4) Cov khoom siv tshuaj lom neeg ntawm carbon fiber. Cov pa roj carbon fiber yog tshuaj zoo ib yam li cov pa roj carbon. Nyob rau hauv tas li ntawd mus rau oxidized los ntawm oxidants, nws yog inert rau general acid thiab lub hauv paus, nyob rau hauv cov huab cua, thaum lub kub siab tshaj 400 degree C. Carbon fiber tshwm pom tseeb oxidation, zus tau tej cov CO thiab CO2, nyob rau hauv tsis muaj kev sib cuag nrog. huab cua lossis oxidation cua, carbon fiber muaj qhov ua kom sov zoo, ntawm qhov kub siab tshaj 1500 degree, lub zog ntawm carbon fiber pib poob. Tsis tas li ntawd, carbon fiber kuj muaj qhov kub thiab txias tsis kam, xws li tsis muaj embrittlement ntawm cov kua nitrogen kub, nws kuj muaj roj tsis kam, hluav taws xob tsis kam, hluav taws xob tsis kam, nqus cov pa phem thiab decelerating neutrons.
