(1) Hais txog lub zog tensile, iav fiber ntau yog * qis, carbon fiber * siab 3000 ~ 5000MPa, aramid fiber kuj tuaj yeem npaj cov khoom ntau dua 3000MPa hauv xyoo tas los no; Aramid yog cov organic fiber uas tsis muaj cua sov ua haujlwm; iav fiber ntau tus nqi * qis; Cov iav fiber ntau thiab cov pa roj carbon fiber ntau yog nkig fibers, thiab cov khoom siv thiab cov khoom siv weaving yog me ntsis tsis zoo thaum siv, thiab cov aramid fiber ntau zoo toughness thiab yooj yim rau weave thiab cua.
(2) In terms of tensile strength and modulus, carbon fiber CF> aramid KF > glass fiber GF, but the elongation at break of CF is very small, and sometimes it cannot meet the requirements. Density GF>CF>KF. Qhov zoo ntawm iav fiber ntau yog tias nws pheej yig, pheej yig dua li carbon fiber ntau thiab aramid. Qhov tshwj xeeb ntawm aramid yog tias nws muaj kev cuam tshuam tiv taus thiab tuaj yeem siv los ua cov mos txwv phom, tab sis aramid yooj yim nqus dej.
(3) Qhov zoo ntawm aramid fiber ntau piv nrog carbon fiber:
a. Aramid fiber tsis yog conductive (carbon fiber conductive). Tsis tas li ntawd, cov pa roj carbon fiber ntau yog siv los txhawb cov pob zeb ua vaj tse, thiab yuav tsum raug cais tawm ntawm cov hlau tuav kom tiv thaiv electrochemical corrosion, thaum siv aramid fibers tsis raug rau qhov kev txwv no.
b. Lub zog shear ntawm carbon fiber ntau yog tsawg thiab yooj yim tawg, uas ua rau chamfering kev kho mob yuav tsum siab dua thaum lub sij hawm tsim kho, thiab lub chamfering vojvoog tsis tsawg tshaj li 20 hli, thaum aramid fiber tsuas xav tau 10 hli.
c. Lub siab modulus ntawm elasticity ntawm carbon fiber enables nws mus rau lub sij hawm ntev static load, uas yog nws zoo heev kom zoo dua, thaum aramid fiber ntau muaj kev sib tw rau bearing dynamic load thiab tej yam hauv zos.
d. Cov pa roj carbon fiber ntau muaj qee qhov zoo ntawm aramid fiber ntau daim ntaub thaum siv los txwv qhov deflection ntawm lub nqaj, tab sis aramid fiber ntau yog qhov tsis txaus ntseeg cov khoom tsim nyog rau kev tsim kho.
e. Kev ua tsis tiav ntawm carbon fiber reinforcement yog brittleness (me me deformation, me me qhov kawg elongation ntawm carbon fiber ntaub), thiab tsis muaj cov cim qhia pom tseeb, yog li kev tsim qauv, yuav tsum muaj kev nyab xeeb loj dua.