Daim ntawv thov ntawm precipitated silica hauv cov khoom lag luam roj hmab
Raws li kev tsim khoom, cov pa roj carbon dub tuaj yeem muab faib ua cov pa roj carbon dub thiab roj-theem dawb carbon dub. Lub precipitated dawb carbon dub yog tsuas yog siv los ua tus neeg sawv cev rau cov roj hmab ntuj thiab hluavtaws roj hmab, nrog rau cov txiaj ntsig tseem ceeb. Precipitation dawb carbon dub yog hu ua nag lossis daus thiab silicon dioxide, tseem hu uaactive silicon dioxide. Nws muaj qhov tshwj xeeb ntawm thaj chaw, cov qauv siab thiab kev ua haujlwm siab. Thaum siv cov roj hmab rov ua dua los tsim cov khoom siv roj hmab, tshwj xeeb tshaj yog cov khoom siv roj hmab uas muaj xim zoo nkauj thiab xim av, cov silica precipitated muaj qhov zoo dua li cov pa roj carbon dub thiab lwm cov xim xim inorganic.
Dej nag silicayog cov khoom siv ntxiv dag zog uas npaj los ntawm cov tshuaj tiv thaiv ntawm silicate thiab inorganic acid nag lossis daus. Tom qab ntxiv ib qho me me ntawm silica rau cov roj hmab zoo tib yam, lub zog txhua yam, hnav tsis kam thiab kev laus ua haujlwm ntawm cov khoom tau zoo dua qub, thiab nws tau siv dav hauv cov khoom lag luam roj hmab. Hauv kev siv tswv yim, ntau dua 65 feem pua ntawm cov silica precipitated yog siv hauv kev lag luam roj hmab, feem ntau hauv cov khau thiab cov log tsheb.
Tom qab siv cov pa roj carbon dub rau cov roj hmab hauv cov ntaub ntawv khau, cov khoom hardness, tensile zog, kua muag lub zog, puas kuj, skid kuj thiab adhesion yog ho txhim kho, tshwj xeeb tshaj yog nyob rau hauv lub teeb xim, xim translucent thiab pob tshab soles (xws li outsole, midsole. , band rubber, thiab lwm yam). Ntxiv cov pa roj carbon dub kom zoo rau lub log tsheb thiab cov roj hmab carcass yuav pab txhim kho lub kua muag thiab adhesion ntawm roj hmab thiab qaum.