Peb tuaj yeem qhia qhov txawv ntawm cov ntaub ntawv carbon fiber thiab aramid daim ntaub li cas?

Peb tuaj yeem qhia qhov txawv ntawm cov ntaub ntawv carbon fiber thiab aramid daim ntaub li cas?

Cov pa roj carbon fiber ntau thiab aramid daim ntaub yog ob yam khoom siv txhawb zog hauv lub nplhaib. Rau cov kws kho mob uas nyuam qhuav nkag mus rau hauv lub voj voog, lawv xav tias cov ntaub ntawv carbon fiber thiab aramid fiber ntau tsis txawv. Lawv nce ob qho tib si bearing peev xwm ntawm slab los yog beam thiab tensile peev xwm ntawm lub beam thiab slab; ntxiv dag zog rau qhov qub seem ntawm kem los yog ua kom lub hoop restraint. Tab sis qhov tseeb, tseem muaj qee qhov sib txawv ntawm ob qho ntawm kev ua haujlwm thiab kev siv. Yog li, yuav ua li cas paub qhov txawv ntawm cov ntaub ntawv carbon fiber thiab aramid daim ntaub?

Sib txawv tensile zog

Cov pa roj carbon fiber ntau yog woven los ntawm cov xov paj carbon fiber ntau, thiab nws lub zog tensile yuav tsum ncav cuag 3400MPa; thaum aramid daim ntaub yog woven los ntawm aramid fiber, thiab nws tensile zog tsuas yog ncav cuag 2100MPa. Saib ntawm txhua yam khoom ib leeg, cov ntaub ntawv carbon fiber zoo dua li daim ntaub aramid.

Txawv conductivity, txawv daim ntawv thov teb

Aramid tsis yog conductive, yog li nws yog qhov tseeb tsis tsim nyog siv cov ntaub ntawv carbon fiber hauv cov qauv nrog ntau cov khoom siv hluav taws xob xws li subways thiab cov nroj tsuag muaj kev lag luam. Tsis tas li ntawd, thaum cov pa roj carbon fiber ntau yog siv los txhim kho cov pob zeb ua vaj tse, nws yuav tsum tau muab cais tawm ntawm cov hlau tuav los tiv thaiv electrochemical corrosion. Kev siv aramid fibers tsis txwv los ntawm tus mob no. Thaum ntxiv dag zog rau lub tsev zoo tib yam, carbon fiber muaj qhov zoo ntawm daim ntawv thov ntawm lub zog tensile thiab elastic modulus.

Ob txoj kev rhuav tshem

Cov hom tsis ua hauj lwm tom qab carbon fiber reinforcement yog brittleness (me me deformation, siab elastic modulus ntawm carbon daim ntaub, tsis elongation), thiab tsis muaj teeb meem. Yog li ntawd, raws li kev tsim qauv, yuav tsum tau txais kev pom zoo ntawm kev nyab xeeb loj dua; lub elastic modulus ntawm aramid ntaub yog tsawg thiab elongation yog loj. Cov kev sim qhia tau hais tias tom qab cov neeg ua vaj tse puas lawm tau ntxiv nrog cov ntaub aramid thiab tom qab ntawd thauj khoom, cov txheej txheem tsis ua haujlwm tseem yog yas.

Structures adhesives muaj peev xwm nkag mus sib txawv

Aramid thiab cob yog ob qho tib si cov ntaub ntawv organic, thiab ob qho tib si sib xyaw ua ke; carbon fiber ntaub yog ib yam khoom siv inorganic, thiab nws cov huab cua permeability txawv ntawm aramid, uas yuav tsum tau ntau yam kev khiav hauj lwm.

Tau hais tias, cov ntaub ntawv carbon fiber thiab aramid daim ntaub sib txawv heev hauv tensile lub zog thiab elastic modulus. Thiab cov ntaub ntawv carbon fiber yog conductive, aramid daim ntaub tsis conductive. Cov kev sib txawv no txiav txim siab siv qhov sib txawv ntawm ob. Tom qab nyeem tsab xov xwm no, koj puas nkag siab qhov txawv ntawm cov ntaub ntawv carbon fiber thiab aramid daim ntaub?