Elasticity ntawm cov roj hmab band (nyob deb npaum li cas nws tuaj yeem ncab thiab snap rov qab) nyob ntawm ob qho tib si cov khoom siv thiab cov band lub cev tsim. Elasticity nyob ntawm feem ntau ntawm cov roj hmab tsim, tus txheej txheem vulcanization, thiab cov band lub thickness / loj, ntxiv rau nws khaws cia thiab siv.
Cov Khoom Siv Cov Khoom Siv
Lub siab dua cov pa roj hmab cov ntsiab lus hauv cov roj hmab, qhov ntau dua nws txoj kev elasticity thiab muaj txiaj ntsig.
Crosslinking (vulcanization)
Cov roj hmab bands yog vulcanized siv cov sulphur lossis lwm tus neeg sawv cev. Qib℃ntawm crosslinking ua rau muaj zog, stiffer roj hmab band nrog tsawg ncab. Ib qho qis dua ntawm cov qhab nia hla dhau hauv softer, ntau dua elastic roj hmab band, tab sis kuj tsawg dua lub zog hauv kev thauj khoom.
Lub cev qhov ntev
Thickness: thicker bands tiv taus ncab ntau.
Dav: Kab dav hlau sib kis tau sib kis tau yuam kev, xav tias tsawg ncab.
Txoj kab uas hla / ntev: ntev dua bands zoo li elastic txij thaum lawv tuaj yeem ncab deb ua ntej tawg.
Kub & Ib puag ncig
Sov ua rau cov roj hmab ntau yoog raws thiab ywj.
Txias ua rau nws txhav thiab nkig.
UV teeb, ozone, thiab cov pa tawg cia polymer chains, txo qhov elasticity dhau sijhawm.
Hnub nyoog & Cia
Cov roj hmab tshiab=siab} High elasticity.
Laus laus, qhuav - tawm roj hmab=kab nrib pleb thiab poob ncab.
Khaws cia rau hauv qhov chaw txias, tsaus, lub hnab ntim khoom ua rau elasticity ntev.
Hauv ntej, cov roj hmab band tus elasticity yog puab yog qhov ua tau los ntawm, nws loj npaum li cas, thiab cov xwm txheej nws nyob hauv. Tshiab {-}}}. Ntawm Daoak, peb tswj cov khoom tsim, vulcanization, thiab cov qauv zoo los xyuas kom meej txhua yam hloov pauv thiab ruaj khov, kev lag luam, lossis siv tshwj xeeb.
