EVA ua npuas ncauj tau siv dav hauv ntau yam xws li cov khoom siv hluav taws xob, ntim khoom, thiab cov ntaub ntawv poob siab, thiab tau txais kev pom zoo ntawm cov neeg siv khoom thiab cov tuam txhab nrog nws cov kev ua tau zoo heev. EVA yog cov ntawv luv rau Ethylene Vinyl Acetate copolymer, thiab nws cov khoom siv ua rau nws tuav txoj haujlwm tseem ceeb hauv kev ua lag luam.
Ua ntej, cov khoom siv EVA muaj cov yas zoo thiab cov elasticity siab, uas txhais tau hais tias nws tuaj yeem ua tau zoo cushion vibrations thiab cuam tshuam thaum raug rau sab nraud quab yuam, yog li tiv thaiv cov khoom sab hauv. Cov yam ntxwv ntawm EVA ua npuas ncauj ua rau nws yog cov khoom ntim zoo tagnrho, tshwj xeeb tshaj yog rau cov khoom siv precision xws li cov khoom siv hluav taws xob thiab cov cuab yeej siv. Tsis tas li ntawd, EVA ua npuas ncauj muaj cov dej tsis zoo thiab tshuaj lom neeg ruaj khov, thiab tuaj yeem tswj xyuas kev ua haujlwm zoo hauv ntau qhov chaw.
Hauv kev siv tswv yim, cov khoom siv EVA feem ntau ua rau hauv EVA hauv ob sab phlu thiab siv ntau lub hnab, lub thawv ntsuas, thiab lub thawv ntawv. EVA hauv ob sab phlu tsis tsuas yog muab kev tiv thaiv zoo rau cov khoom, tab sis kuj tso cai rau kev tsim kho kom nruj kom haum rau hauv ob sab phlu nrog cov khoom, siv qhov chaw zoo tshaj plaws thiab txhim kho cov khoom zoo nkauj. Thaum thauj thiab khaws cia, EVA hauv ob sab phlu tuaj yeem tiv thaiv cov khoom txav thiab txo kev puas tsuaj los ntawm kev sib tsoo lossis kev sib txhuam.
Txawm li cas los xij, tseem muaj qee cov ntsiab lus uas yuav tsum tau them sai sai rau thaum siv EVA ua npuas ncauj. Ua ntej, txawm hais tias EVA ua npuas ncauj yog ruaj, nws yuav deform los yog muaj hnub nyoog nyob rau hauv high-temperature ib puag ncig, yog li ntawd ntev siv nyob rau hauv high-temperature ib puag ncig yuav tsum tau zam. Qhov thib ob, qee qhov EVA ua npuas ncauj tuaj yeem muaj cov yas me me, uas tuaj yeem raug tso tawm raws li cov xwm txheej tshwj xeeb thiab cuam tshuam rau kev nyab xeeb ntawm cov khoom. Yog li ntawd, thaum xaiv EVA ua npuas ncauj, nws raug nquahu kom xaiv cov khoom uas tau ntawv pov thawj rau kev nyab xeeb. Tsis tas li ntawd, EVA ua npuas ncauj yuav tsum tau ua tib zoo saib xyuas thaum txiav thiab kev teeb tsa kom tsis txhob muaj kev puas tsuaj los yog kev puas tsuaj los ntawm kev siv tsis raug.
Zuag qhia tag nrho, EVA ua npuas ncauj ua lub luag haujlwm tsis tuaj yeem hloov pauv hauv ntau daim ntawv thov vim nws elasticity, durability, thiab tshuaj stability. Ntawm qhov chaw nkag siab txog nws cov yam ntxwv ntawm cov khoom siv, cov neeg siv tuaj yeem xaiv thiab siv EVA hauv ob sab phlu kom tsim nyog, uas tuaj yeem siv qhov zoo ntawm EVA ua npuas ncauj thiab txhim kho kev nyab xeeb thiab kev pabcuam lub neej ntawm cov khoom.